Camel : Unable to Catch an Exception in Netty4

Camel : Unable to Catch an Exception in Netty4 - exception

I have a Netty4 interface that accepts a message and puts this message in a queue (ActiveMQ), if the connection to the queue is down while camel is running then there is an exception happening in Netty after receiving the caller's message that I can't catch in any OnException and any ErrorHandler, I tried using LoadBalance and failover but still the same issue, the problem in this case is the caller is waiting until timeout and even if the connection to the queue is restored, Camel is losing the caller's message and not continuing the route ( which is the worst issue).
My Routes :
<route id="GetHl7Request">
<from uri="hl7listener" />
<transacted />
<multicast>
<to uri="direct:SaveRequestInMQChannel" />
<to uri="direct:AckToOrderSrcChannel" />
</multicast>
</route>
<route id="SendRequestToMQ">
<from uri="direct:SaveRequestInMQChannel" />
<inOnly uri="inboundMQ" />
<log logName="{{camel.general.info.logname}}" loggingLevel="INFO"
message="HL7 Request from OrderSrc has been Saved to MQ" />
</route>
<route id="AckToOrderSrcHL7Request">
<from uri="direct:AckToOrderSrcChannel" />
<to uri="bean:HL7Processor?method=sendAckToOrderSrc" />
</route>
Stack Trace :
[ #43 - NettyEventExecutorGroup] TransactionErrorHandler WARN Transaction rollback (0x5fa9247b) redelivered(unknown) for (MessageId: ID-Mohammadt-460-58269-1490636081104-0-1 on ExchangeId: ID-Mohammadt-460-58269-1490636081104-0-2) caught: Could not create JMS transaction; nested exception is javax.jms.JMSException: Error while attempting to add new Connection to the pool
[ead #42 - NettyServerTCPWorker] NettyConsumer ERROR Caused by: [org.apache.camel.CamelExchangeException - Cannot write response to /127.0.0.1:58397. Exchange[ID-Mohammadt-460-58269-1490636081104-0-2]. Caused by: [io.netty.handler.codec.EncoderException - org.springframework.transaction.CannotCreateTransactionException: Could not create JMS transaction; nested exception is javax.jms.JMSException: Error while attempting to add new Connection to the pool]]
org.apache.camel.CamelExchangeException: Cannot write response to /127.0.0.1:58397. Exchange[ID-Mohammadt-460-58269-1490636081104-0-2]. Caused by: [io.netty.handler.codec.EncoderException - org.springframework.transaction.CannotCreateTransactionException: Could not create JMS transaction; nested exception is javax.jms.JMSException: Error while attempting to add new Connection to the pool]
at org.apache.camel.component.netty4.handlers.ServerResponseFutureListener.operationComplete(ServerResponseFutureListener.java:54) [camel-netty4-2.18.2.jar:2.18.2]
at org.apache.camel.component.netty4.handlers.ServerResponseFutureListener.operationComplete(ServerResponseFutureListener.java:36) [camel-netty4-2.18.2.jar:2.18.2]
at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:507) [netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:481) [netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:420) [netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:122) [netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.util.internal.PromiseNotificationUtil.tryFailure(PromiseNotificationUtil.java:64) [netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.channel.AbstractChannelHandlerContext.notifyOutboundHandlerException(AbstractChannelHandlerContext.java:837) [netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:741) [netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:731) [netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.channel.AbstractChannelHandlerContext.access$1900(AbstractChannelHandlerContext.java:38) [netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.channel.AbstractChannelHandlerContext$AbstractWriteTask.write(AbstractChannelHandlerContext.java:1090) [netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.channel.AbstractChannelHandlerContext$WriteAndFlushTask.write(AbstractChannelHandlerContext.java:1137) [netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.channel.AbstractChannelHandlerContext$AbstractWriteTask.run(AbstractChannelHandlerContext.java:1079) [netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163) [netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:403) [netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:445) [netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858) [netty-all-4.1.7.Final.jar:4.1.7.Final]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
Caused by: io.netty.handler.codec.EncoderException: org.springframework.transaction.CannotCreateTransactionException: Could not create JMS transaction; nested exception is javax.jms.JMSException: Error while attempting to add new Connection to the pool
at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:125) ~[netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:739) ~[netty-all-4.1.7.Final.jar:4.1.7.Final]
... 10 more
Caused by: org.springframework.transaction.CannotCreateTransactionException: Could not create JMS transaction; nested exception is javax.jms.JMSException: Error while attempting to add new Connection to the pool
at org.springframework.jms.connection.JmsTransactionManager.doBegin(JmsTransactionManager.java:216) ~[spring-jms-4.3.5.RELEASE.jar:4.3.5.RELEASE]
at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373) ~[spring-tx-4.3.5.RELEASE.jar:4.3.5.RELEASE]
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:130) ~[spring-tx-4.3.5.RELEASE.jar:4.3.5.RELEASE]
at org.apache.camel.spring.spi.TransactionErrorHandler.doInTransactionTemplate(TransactionErrorHandler.java:176) ~[camel-spring-2.18.2.jar:2.18.2]
at org.apache.camel.spring.spi.TransactionErrorHandler.processInTransaction(TransactionErrorHandler.java:136) ~[camel-spring-2.18.2.jar:2.18.2]
at org.apache.camel.spring.spi.TransactionErrorHandler.process(TransactionErrorHandler.java:105) ~[camel-spring-2.18.2.jar:2.18.2]
at org.apache.camel.spring.spi.TransactionErrorHandler.process(TransactionErrorHandler.java:114) ~[camel-spring-2.18.2.jar:2.18.2]
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197) ~[camel-core-2.18.2.jar:2.18.2]
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197) ~[camel-core-2.18.2.jar:2.18.2]
at org.apache.camel.component.netty4.handlers.ServerChannelHandler.processAsynchronously(ServerChannelHandler.java:138) ~[camel-netty4-2.18.2.jar:2.18.2]
at org.apache.camel.component.netty4.handlers.ServerChannelHandler.channelRead0(ServerChannelHandler.java:109) ~[camel-netty4-2.18.2.jar:2.18.2]
at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105) ~[netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363) ~[netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:38) ~[netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:354) ~[netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.util.concurrent.DefaultEventExecutor.run(DefaultEventExecutor.java:66) ~[netty-all-4.1.7.Final.jar:4.1.7.Final]
... 2 more
Caused by: javax.jms.JMSException: Error while attempting to add new Connection to the pool
at org.apache.activemq.jms.pool.PooledConnectionFactory.createJmsException(PooledConnectionFactory.java:266) ~[activemq-jms-pool-5.14.3.jar:5.14.3]
at org.apache.activemq.jms.pool.PooledConnectionFactory.createConnection(PooledConnectionFactory.java:225) ~[activemq-jms-pool-5.14.3.jar:5.14.3]
at org.apache.activemq.jms.pool.PooledConnectionFactory.createConnection(PooledConnectionFactory.java:204) ~[activemq-jms-pool-5.14.3.jar:5.14.3]
at org.springframework.jms.connection.JmsTransactionManager.createConnection(JmsTransactionManager.java:288) ~[spring-jms-4.3.5.RELEASE.jar:4.3.5.RELEASE]
at org.springframework.jms.connection.JmsTransactionManager.doBegin(JmsTransactionManager.java:186) ~[spring-jms-4.3.5.RELEASE.jar:4.3.5.RELEASE]
at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373) ~[spring-tx-4.3.5.RELEASE.jar:4.3.5.RELEASE]
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:130) ~[spring-tx-4.3.5.RELEASE.jar:4.3.5.RELEASE]
at org.apache.camel.spring.spi.TransactionErrorHandler.doInTransactionTemplate(TransactionErrorHandler.java:176) ~[camel-spring-2.18.2.jar:2.18.2]
at org.apache.camel.spring.spi.TransactionErrorHandler.processInTransaction(TransactionErrorHandler.java:136) ~[camel-spring-2.18.2.jar:2.18.2]
at org.apache.camel.spring.spi.TransactionErrorHandler.process(TransactionErrorHandler.java:105) ~[camel-spring-2.18.2.jar:2.18.2]
at org.apache.camel.spring.spi.TransactionErrorHandler.process(TransactionErrorHandler.java:114) ~[camel-spring-2.18.2.jar:2.18.2]
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197) ~[camel-core-2.18.2.jar:2.18.2]
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197) ~[camel-core-2.18.2.jar:2.18.2]
at org.apache.camel.component.netty4.handlers.ServerChannelHandler.processAsynchronously(ServerChannelHandler.java:138) ~[camel-netty4-2.18.2.jar:2.18.2]
at org.apache.camel.component.netty4.handlers.ServerChannelHandler.channelRead0(ServerChannelHandler.java:109) ~[camel-netty4-2.18.2.jar:2.18.2]
at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105) ~[netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363) ~[netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:38) ~[netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:354) ~[netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.util.concurrent.DefaultEventExecutor.run(DefaultEventExecutor.java:66) ~[netty-all-4.1.7.Final.jar:4.1.7.Final]
... 2 more
Caused by: javax.jms.JMSException: Could not connect to broker URL: tcp://localhost:61616. Reason: java.net.ConnectException: Connection refused: connect
at org.apache.activemq.util.JMSExceptionSupport.create(JMSExceptionSupport.java:36) ~[activemq-client-5.14.3.jar:5.14.3]
at org.apache.activemq.ActiveMQConnectionFactory.createActiveMQConnection(ActiveMQConnectionFactory.java:374) ~[activemq-client-5.14.3.jar:5.14.3]
at org.apache.activemq.ActiveMQConnectionFactory.createActiveMQConnection(ActiveMQConnectionFactory.java:304) ~[activemq-client-5.14.3.jar:5.14.3]
at org.apache.activemq.ActiveMQConnectionFactory.createConnection(ActiveMQConnectionFactory.java:244) ~[activemq-client-5.14.3.jar:5.14.3]
at org.apache.activemq.jms.pool.PooledConnectionFactory.createConnection(PooledConnectionFactory.java:275) ~[activemq-jms-pool-5.14.3.jar:5.14.3]
at org.apache.activemq.jms.pool.PooledConnectionFactory$1.makeObject(PooledConnectionFactory.java:95) ~[activemq-jms-pool-5.14.3.jar:5.14.3]
at org.apache.activemq.jms.pool.PooledConnectionFactory$1.makeObject(PooledConnectionFactory.java:92) ~[activemq-jms-pool-5.14.3.jar:5.14.3]
at org.apache.commons.pool2.impl.GenericKeyedObjectPool.create(GenericKeyedObjectPool.java:1041) ~[commons-pool2-2.4.2.jar:2.4.2]
at org.apache.commons.pool2.impl.GenericKeyedObjectPool.addObject(GenericKeyedObjectPool.java:1221) ~[commons-pool2-2.4.2.jar:2.4.2]
at org.apache.activemq.jms.pool.PooledConnectionFactory.createConnection(PooledConnectionFactory.java:221) ~[activemq-jms-pool-5.14.3.jar:5.14.3]
at org.apache.activemq.jms.pool.PooledConnectionFactory.createConnection(PooledConnectionFactory.java:204) ~[activemq-jms-pool-5.14.3.jar:5.14.3]
at org.springframework.jms.connection.JmsTransactionManager.createConnection(JmsTransactionManager.java:288) ~[spring-jms-4.3.5.RELEASE.jar:4.3.5.RELEASE]
at org.springframework.jms.connection.JmsTransactionManager.doBegin(JmsTransactionManager.java:186) ~[spring-jms-4.3.5.RELEASE.jar:4.3.5.RELEASE]
at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373) ~[spring-tx-4.3.5.RELEASE.jar:4.3.5.RELEASE]
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:130) ~[spring-tx-4.3.5.RELEASE.jar:4.3.5.RELEASE]
at org.apache.camel.spring.spi.TransactionErrorHandler.doInTransactionTemplate(TransactionErrorHandler.java:176) ~[camel-spring-2.18.2.jar:2.18.2]
at org.apache.camel.spring.spi.TransactionErrorHandler.processInTransaction(TransactionErrorHandler.java:136) ~[camel-spring-2.18.2.jar:2.18.2]
at org.apache.camel.spring.spi.TransactionErrorHandler.process(TransactionErrorHandler.java:105) ~[camel-spring-2.18.2.jar:2.18.2]
at org.apache.camel.spring.spi.TransactionErrorHandler.process(TransactionErrorHandler.java:114) ~[camel-spring-2.18.2.jar:2.18.2]
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197) ~[camel-core-2.18.2.jar:2.18.2]
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197) ~[camel-core-2.18.2.jar:2.18.2]
at org.apache.camel.component.netty4.handlers.ServerChannelHandler.processAsynchronously(ServerChannelHandler.java:138) ~[camel-netty4-2.18.2.jar:2.18.2]
at org.apache.camel.component.netty4.handlers.ServerChannelHandler.channelRead0(ServerChannelHandler.java:109) ~[camel-netty4-2.18.2.jar:2.18.2]
at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105) ~[netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363) ~[netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:38) ~[netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:354) ~[netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.util.concurrent.DefaultEventExecutor.run(DefaultEventExecutor.java:66) ~[netty-all-4.1.7.Final.jar:4.1.7.Final]
... 2 more
Caused by: java.net.ConnectException: Connection refused: connect
at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method) ~[?:1.8.0_91]
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85) ~[?:1.8.0_91]
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) ~[?:1.8.0_91]
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[?:1.8.0_91]
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) ~[?:1.8.0_91]
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) ~[?:1.8.0_91]
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[?:1.8.0_91]
at java.net.Socket.connect(Socket.java:589) ~[?:1.8.0_91]
at org.apache.activemq.transport.tcp.TcpTransport.connect(TcpTransport.java:525) ~[activemq-client-5.14.3.jar:5.14.3]
at org.apache.activemq.transport.tcp.TcpTransport.doStart(TcpTransport.java:488) ~[activemq-client-5.14.3.jar:5.14.3]
at org.apache.activemq.util.ServiceSupport.start(ServiceSupport.java:55) ~[activemq-client-5.14.3.jar:5.14.3]
at org.apache.activemq.transport.AbstractInactivityMonitor.start(AbstractInactivityMonitor.java:169) ~[activemq-client-5.14.3.jar:5.14.3]
at org.apache.activemq.transport.InactivityMonitor.start(InactivityMonitor.java:52) ~[activemq-client-5.14.3.jar:5.14.3]
at org.apache.activemq.transport.TransportFilter.start(TransportFilter.java:64) ~[activemq-client-5.14.3.jar:5.14.3]
at org.apache.activemq.transport.WireFormatNegotiator.start(WireFormatNegotiator.java:72) ~[activemq-client-5.14.3.jar:5.14.3]
at org.apache.activemq.transport.TransportFilter.start(TransportFilter.java:64) ~[activemq-client-5.14.3.jar:5.14.3]
at org.apache.activemq.transport.TransportFilter.start(TransportFilter.java:64) ~[activemq-client-5.14.3.jar:5.14.3]
at org.apache.activemq.ActiveMQConnectionFactory.createActiveMQConnection(ActiveMQConnectionFactory.java:354) ~[activemq-client-5.14.3.jar:5.14.3]
at org.apache.activemq.ActiveMQConnectionFactory.createActiveMQConnection(ActiveMQConnectionFactory.java:304) ~[activemq-client-5.14.3.jar:5.14.3]
at org.apache.activemq.ActiveMQConnectionFactory.createConnection(ActiveMQConnectionFactory.java:244) ~[activemq-client-5.14.3.jar:5.14.3]
at org.apache.activemq.jms.pool.PooledConnectionFactory.createConnection(PooledConnectionFactory.java:275) ~[activemq-jms-pool-5.14.3.jar:5.14.3]
at org.apache.activemq.jms.pool.PooledConnectionFactory$1.makeObject(PooledConnectionFactory.java:95) ~[activemq-jms-pool-5.14.3.jar:5.14.3]
at org.apache.activemq.jms.pool.PooledConnectionFactory$1.makeObject(PooledConnectionFactory.java:92) ~[activemq-jms-pool-5.14.3.jar:5.14.3]
at org.apache.commons.pool2.impl.GenericKeyedObjectPool.create(GenericKeyedObjectPool.java:1041) ~[commons-pool2-2.4.2.jar:2.4.2]
at org.apache.commons.pool2.impl.GenericKeyedObjectPool.addObject(GenericKeyedObjectPool.java:1221) ~[commons-pool2-2.4.2.jar:2.4.2]
at org.apache.activemq.jms.pool.PooledConnectionFactory.createConnection(PooledConnectionFactory.java:221) ~[activemq-jms-pool-5.14.3.jar:5.14.3]
at org.apache.activemq.jms.pool.PooledConnectionFactory.createConnection(PooledConnectionFactory.java:204) ~[activemq-jms-pool-5.14.3.jar:5.14.3]
at org.springframework.jms.connection.JmsTransactionManager.createConnection(JmsTransactionManager.java:288) ~[spring-jms-4.3.5.RELEASE.jar:4.3.5.RELEASE]
at org.springframework.jms.connection.JmsTransactionManager.doBegin(JmsTransactionManager.java:186) ~[spring-jms-4.3.5.RELEASE.jar:4.3.5.RELEASE]
at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373) ~[spring-tx-4.3.5.RELEASE.jar:4.3.5.RELEASE]
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:130) ~[spring-tx-4.3.5.RELEASE.jar:4.3.5.RELEASE]
at org.apache.camel.spring.spi.TransactionErrorHandler.doInTransactionTemplate(TransactionErrorHandler.java:176) ~[camel-spring-2.18.2.jar:2.18.2]
at org.apache.camel.spring.spi.TransactionErrorHandler.processInTransaction(TransactionErrorHandler.java:136) ~[camel-spring-2.18.2.jar:2.18.2]
at org.apache.camel.spring.spi.TransactionErrorHandler.process(TransactionErrorHandler.java:105) ~[camel-spring-2.18.2.jar:2.18.2]
at org.apache.camel.spring.spi.TransactionErrorHandler.process(TransactionErrorHandler.java:114) ~[camel-spring-2.18.2.jar:2.18.2]
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197) ~[camel-core-2.18.2.jar:2.18.2]
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197) ~[camel-core-2.18.2.jar:2.18.2]
at org.apache.camel.component.netty4.handlers.ServerChannelHandler.processAsynchronously(ServerChannelHandler.java:138) ~[camel-netty4-2.18.2.jar:2.18.2]
at org.apache.camel.component.netty4.handlers.ServerChannelHandler.channelRead0(ServerChannelHandler.java:109) ~[camel-netty4-2.18.2.jar:2.18.2]
at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105) ~[netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363) ~[netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:38) ~[netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:354) ~[netty-all-4.1.7.Final.jar:4.1.7.Final]
at io.netty.util.concurrent.DefaultEventExecutor.run(DefaultEventExecutor.java:66) ~[netty-all-4.1.7.Final.jar:4.1.7.Final]
... 2 more

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Spring boot Mysql Docker-compose cannot connect when adding repository layer

I'll post my configs and stacktrace below. And also, when I remove UserRepository it works fine..
version: "3.7"
services:
autodrive:
build:
context: ./
dockerfile: Dockerfile
container_name: autodrive
ports:
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restart: unless-stopped
depends_on:
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mysql:
image: mysql:latest
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application.properties file
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spring.datasource.username= autodrive
spring.datasource.password= demo
First stacktrace:
com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174) ~[mysql-connector-java-8.0.21.jar:8.0.21]
at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64) ~[mysql-connector-java-8.0.21.jar:8.0.21]
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836) ~[mysql-connector-java-8.0.21.jar:8.0.21]
at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:456) ~[mysql-connector-java-8.0.21.jar:8.0.21]
at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246) ~[mysql-connector-java-8.0.21.jar:8.0.21]
at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:197) ~[mysql-connector-java-8.0.21.jar:8.0.21]
at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) ~[HikariCP-3.4.5.jar:na]
at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:358) ~[HikariCP-3.4.5.jar:na]
at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:206) ~[HikariCP-3.4.5.jar:na]
at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:477) ~[HikariCP-3.4.5.jar:na]
at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:560) ~[HikariCP-3.4.5.jar:na]
at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) ~[HikariCP-3.4.5.jar:na]
at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) ~[HikariCP-3.4.5.jar:na]
at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcEnvironmentInitiator.java:180) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:68) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:101) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:263) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:237) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory.injectServices(DefaultIdentifierGeneratorFactory.java:152) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.injectDependencies(AbstractServiceRegistryImpl.java:286) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:243) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.<init>(InFlightMetadataCollectorImpl.java:176) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:118) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:1224) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1255) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:58) ~[spring-orm-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) ~[spring-orm-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-5.3.0-RC1.jar:5.3.0-RC1]
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na]
at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]
Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:na]
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490) ~[na:na]
at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61) ~[mysql-connector-java-8.0.21.jar:8.0.21]
at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105) ~[mysql-connector-java-8.0.21.jar:8.0.21]
at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151) ~[mysql-connector-java-8.0.21.jar:8.0.21]
at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167) ~[mysql-connector-java-8.0.21.jar:8.0.21]
at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:91) ~[mysql-connector-java-8.0.21.jar:8.0.21]
at com.mysql.cj.NativeSession.connect(NativeSession.java:144) ~[mysql-connector-java-8.0.21.jar:8.0.21]
at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956) ~[mysql-connector-java-8.0.21.jar:8.0.21]
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826) ~[mysql-connector-java-8.0.21.jar:8.0.21]
... 33 common frames omitted
Caused by: java.net.UnknownHostException: mysql: Name or service not known
at java.base/java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method) ~[na:na]
at java.base/java.net.InetAddress$PlatformNameService.lookupAllHostAddr(InetAddress.java:929) ~[na:na]
at java.base/java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1515) ~[na:na]
at java.base/java.net.InetAddress$NameServiceAddresses.get(InetAddress.java:848) ~[na:na]
at java.base/java.net.InetAddress.getAllByName0(InetAddress.java:1505) ~[na:na]
at java.base/java.net.InetAddress.getAllByName(InetAddress.java:1364) ~[na:na]
at java.base/java.net.InetAddress.getAllByName(InetAddress.java:1298) ~[na:na]
at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132) ~[mysql-connector-java-8.0.21.jar:8.0.21]
at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:65) ~[mysql-connector-java-8.0.21.jar:8.0.21]
... 36 common frames omitted
Second:
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userRepository' defined in ee.autodrive.api.repository.UserRepository defined in #EnableJpaRepositories declared on JpaRepositoriesRegistrar.EnableJpaRepositoriesConfiguration: Cannot resolve reference to bean 'jpaMappingContext' while setting bean property 'mappingContext'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jpaMappingContext': Invocation of init method failed; nested exception is org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:342) ~[spring-beans-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:113) ~[spring-beans-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1691) ~[spring-beans-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1436) ~[spring-beans-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:608) ~[spring-beans-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:531) ~[spring-beans-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:671) ~[spring-beans-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:659) ~[spring-beans-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.data.repository.config.DeferredRepositoryInitializationListener.onApplicationEvent(DeferredRepositoryInitializationListener.java:54) ~[spring-data-commons-2.4.0-RC1.jar:2.4.0-RC1]
at org.springframework.data.repository.config.DeferredRepositoryInitializationListener.onApplicationEvent(DeferredRepositoryInitializationListener.java:36) ~[spring-data-commons-2.4.0-RC1.jar:2.4.0-RC1]
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:203) ~[spring-context-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:196) ~[spring-context-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:161) ~[spring-context-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:426) ~[spring-context-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:383) ~[spring-context-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:944) ~[spring-context-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:591) ~[spring-context-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:770) ~[spring-boot-2.4.0-M3.jar:2.4.0-M3]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:762) ~[spring-boot-2.4.0-M3.jar:2.4.0-M3]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:421) ~[spring-boot-2.4.0-M3.jar:2.4.0-M3]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:329) ~[spring-boot-2.4.0-M3.jar:2.4.0-M3]
at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:122) ~[spring-boot-test-2.4.0-M3.jar:2.4.0-M3]
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:99) ~[spring-test-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:124) ~[spring-test-5.3.0-RC1.jar:5.3.0-RC1]
... 67 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jpaMappingContext': Invocation of init method failed; nested exception is org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1788) ~[spring-beans-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:609) ~[spring-beans-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:531) ~[spring-beans-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:330) ~[spring-beans-5.3.0-RC1.jar:5.3.0-RC1]
... 94 common frames omitted
Caused by: org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:275) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:237) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory.injectServices(DefaultIdentifierGeneratorFactory.java:152) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.injectDependencies(AbstractServiceRegistryImpl.java:286) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:243) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.<init>(InFlightMetadataCollectorImpl.java:176) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:118) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:1224) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1255) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:58) ~[spring-orm-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) ~[spring-orm-5.3.0-RC1.jar:5.3.0-RC1]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-5.3.0-RC1.jar:5.3.0-RC1]
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na]
at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]
Caused by: org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.determineDialect(DialectFactoryImpl.java:100) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.buildDialect(DialectFactoryImpl.java:54) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:137) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:101) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:263) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
... 17 common frames omitted
[ERROR] Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 7 s <<< FAILURE! - in ee.autodrive.api.ApiApplicationTests
[ERROR] contextLoads Time elapsed: 0.004 s <<< ERROR!
java.lang.IllegalStateException: Failed to load ApplicationContext
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userRepository' defined in ee.autodrive.api.repository.UserRepository defined in #EnableJpaRepositories declared on JpaRepositoriesRegistrar.EnableJpaRepositoriesConfiguration: Cannot resolve reference to bean 'jpaMappingContext' while setting bean property 'mappingContext'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jpaMappingContext': Invocation of init method failed; nested exception is org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jpaMappingContext': Invocation of init method failed; nested exception is org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
Caused by: org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
Caused by: org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
And even when I declare a Hibernate Dialect, still gives same stacktrace. What have I tried?
Tried to network them, tried links-to..
Has anyone else had same problem?

It turned out that I needed to comment out the default Spring Boot Test case, since it was failing a stupid test. Now it works.
For the future reference, links are deprecated in docker, as I found out today, they were replaced by user-networks, but since Docker creates a default network for your containers, I didn't need to do any networking.

Exception during pool initialization

I'm creating a spring boot project. Then i try to connect mysql database to that project. I got the error called "HikariPool-1 - Exception during pool initialization".
This is the whole stacktrace.
2020-07-10 23:37:36.630 ERROR 14824 --- [ restartedMain] com.zaxxer.hikari.pool.HikariPool : HikariPool-1 - Exception during pool initialization.
java.sql.SQLException: The server time zone value 'unknown' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the 'serverTimezone' configuration property) to use a more specifc time zone value if you want to utilize time zone support.
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:129) ~[mysql-connector-java-8.0.20.jar:8.0.20]
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97) ~[mysql-connector-java-8.0.20.jar:8.0.20]
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:89) ~[mysql-connector-java-8.0.20.jar:8.0.20]
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:63) ~[mysql-connector-java-8.0.20.jar:8.0.20]
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:73) ~[mysql-connector-java-8.0.20.jar:8.0.20]
at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:76) ~[mysql-connector-java-8.0.20.jar:8.0.20]
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836) ~[mysql-connector-java-8.0.20.jar:8.0.20]
at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:456) ~[mysql-connector-java-8.0.20.jar:8.0.20]
at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246) ~[mysql-connector-java-8.0.20.jar:8.0.20]
at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:197) ~[mysql-connector-java-8.0.20.jar:8.0.20]
at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) ~[HikariCP-3.4.5.jar:na]
at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:358) ~[HikariCP-3.4.5.jar:na]
at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:206) ~[HikariCP-3.4.5.jar:na]
at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:477) [HikariCP-3.4.5.jar:na]
at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:560) [HikariCP-3.4.5.jar:na]
at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) [HikariCP-3.4.5.jar:na]
at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) [HikariCP-3.4.5.jar:na]
at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:158) [spring-jdbc-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:116) [spring-jdbc-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:79) [spring-jdbc-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:324) [spring-jdbc-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.boot.jdbc.EmbeddedDatabaseConnection.isEmbedded(EmbeddedDatabaseConnection.java:120) [spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.autoconfigure.orm.jpa.HibernateDefaultDdlAutoProvider.getDefaultDdlAuto(HibernateDefaultDdlAutoProvider.java:42) [spring-boot-autoconfigure-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration.lambda$getVendorProperties$1(HibernateJpaConfiguration.java:130) [spring-boot-autoconfigure-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.autoconfigure.orm.jpa.HibernateSettings.getDdlAuto(HibernateSettings.java:41) ~[spring-boot-autoconfigure-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.autoconfigure.orm.jpa.HibernateProperties.determineDdlAuto(HibernateProperties.java:136) ~[spring-boot-autoconfigure-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.autoconfigure.orm.jpa.HibernateProperties.getAdditionalProperties(HibernateProperties.java:102) ~[spring-boot-autoconfigure-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.autoconfigure.orm.jpa.HibernateProperties.determineHibernateProperties(HibernateProperties.java:94) ~[spring-boot-autoconfigure-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration.getVendorProperties(HibernateJpaConfiguration.java:132) [spring-boot-autoconfigure-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.autoconfigure.orm.jpa.JpaBaseConfiguration.entityManagerFactory(JpaBaseConfiguration.java:133) ~[spring-boot-autoconfigure-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_111]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_111]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_111]
at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_111]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:650) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:635) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1109) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143) ~[spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) ~[spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) ~[spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) ~[spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) ~[spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at com.example.demo.CrudApplication.main(CrudApplication.java:10) ~[classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_111]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_111]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_111]
at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_111]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.3.1.RELEASE.jar:2.3.1.RELEASE]
Caused by: com.mysql.cj.exceptions.InvalidConnectionAttributeException: The server time zone value 'unknown' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the 'serverTimezone' configuration property) to use a more specifc time zone value if you want to utilize time zone support.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_111]
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) ~[na:1.8.0_111]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) ~[na:1.8.0_111]
at java.lang.reflect.Constructor.newInstance(Unknown Source) ~[na:1.8.0_111]
at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61) ~[mysql-connector-java-8.0.20.jar:8.0.20]
at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:85) ~[mysql-connector-java-8.0.20.jar:8.0.20]
at com.mysql.cj.util.TimeUtil.getCanonicalTimezone(TimeUtil.java:132) ~[mysql-connector-java-8.0.20.jar:8.0.20]
at com.mysql.cj.protocol.a.NativeProtocol.configureTimezone(NativeProtocol.java:2120) ~[mysql-connector-java-8.0.20.jar:8.0.20]
at com.mysql.cj.protocol.a.NativeProtocol.initServerSession(NativeProtocol.java:2143) ~[mysql-connector-java-8.0.20.jar:8.0.20]
at com.mysql.cj.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:1310) ~[mysql-connector-java-8.0.20.jar:8.0.20]
at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:967) ~[mysql-connector-java-8.0.20.jar:8.0.20]
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826) ~[mysql-connector-java-8.0.20.jar:8.0.20]
... 54 common frames omitted

One way is specify the server time zone in the jdbc connection url as:
jdbc:mysql://xxxxx:3306?serverTimezone=UTC
(You can use other timezones too)
Another way is to set the timezone property in the mysql server. Follow the documentation here
If you are deploying your mysql in azure:
set the server parameter time_zone to particular zone.
Follow the doc here

HikariCP trying to obtain connection to pool with different user id than provided

I have a Java app (running Java 11) using HikariCP v3.3.1, with MySQL Connector/J version 8.0.17. I have specified username = 'foo' and password = 'password' and Hikari opens up a connection to the DB with these credentials. This all works.
There is a problem that I see in my logs, however. I have debugging enabled for Hikari and I see stack traces like so:
2019-09-10 01:35:13.452 DEBUG 4941 --- [onnection adder] com.zaxxer.hikari.pool.HikariPool : HikariPool-1 - Cannot acquire connection from data source
java.sql.SQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 10 times. Giving up.
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:110) ~[mysql-connector-java-8.0.17.jar!/:8.0.17]
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97) ~[mysql-connector-java-8.0.17.jar!/:8.0.17]
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:89) ~[mysql-connector-java-8.0.17.jar!/:8.0.17]
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:63) ~[mysql-connector-java-8.0.17.jar!/:8.0.17]
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:73) ~[mysql-connector-java-8.0.17.jar!/:8.0.17]
at com.mysql.cj.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:897) ~[mysql-connector-java-8.0.17.jar!/:8.0.17]
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:822) ~[mysql-connector-java-8.0.17.jar!/:8.0.17]
at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:447) ~[mysql-connector-java-8.0.17.jar!/:8.0.17]
at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:237) ~[mysql-connector-java-8.0.17.jar!/:8.0.17]
at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:199) ~[mysql-connector-java-8.0.17.jar!/:8.0.17]
at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) ~[HikariCP-3.3.1.jar!/:na]
at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:353) ~[HikariCP-3.3.1.jar!/:na]
at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:201) ~[HikariCP-3.3.1.jar!/:na]
at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:473) ~[HikariCP-3.3.1.jar!/:na]
at com.zaxxer.hikari.pool.HikariPool.access$100(HikariPool.java:71) ~[HikariCP-3.3.1.jar!/:na]
at com.zaxxer.hikari.pool.HikariPool$PoolEntryCreator.call(HikariPool.java:727) ~[HikariCP-3.3.1.jar!/:na]
at com.zaxxer.hikari.pool.HikariPool$PoolEntryCreator.call(HikariPool.java:713) ~[HikariCP-3.3.1.jar!/:na]
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na]
at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]
Caused by: com.mysql.cj.exceptions.CJException: Access denied for user 'administrator'#'localhost' (using password: YES)
It looks like it is trying to open a connection in the pool with user = 'administrator'. This naturally fails - because there is no such user in the database.
My question is this: why did Hikari open up one connection successfully to the db with user = 'foo' and password = 'password' but then try to open another connection with a different user = 'administrator'? 'administrator' by the way is the name of user that is running the Java process.
Here is the datasource bean. No other data source bean defined, I think.
#Bean
#ConfigurationProperties
public DataSource myDataSource() {
HikariConfig config = new HikariConfig();
config.setJdbcUrl(dburl);
config.setUsername(dbuser);
config.setPassword(password);
return new HikariDataSource(config);
}
The datasource - as I mentioned does get created with the correct username and password.
We get the values of the various attributes dburl and dbuser from #Value declarations that pull values from the properties files as follows:
#Value("${myorg.dburl}"
String dburl;
#Value("${myorg.dbusername"}"
String dbuser;
String password; //this comes from cloud secret store per org policy
The application properties has the following relevant lines
myorg.dbhost=localhost
myorg.dburl=jdbc:mysql://${myorg.dbhost}:3306/jobs?useSSL=false&autoReconnect=true&failOverReadOnly=false&maxReconnects=10&useServerPrepStmts=false&rewriteBatchedStatements=true&useUnicode=true&characterEncoding=UTF-8
myorg.dbusername=axcode
Thanks in advance!
Updated with new user experiment. So it gets even more curious. I created a new user on my Linux server 'foouser' - and ran the identical spring boot fat jar app. And, it works correctly with no exceptions thrown. Here is what I see from the periodic Hikari logs:
2019-09-12 12:30:46.685 DEBUG 3280 --- [l-1 housekeeper] com.zaxxer.hikari.pool.HikariPool : HikariPool-1 - Pool stats (total=10, active=0, idle=10, waiting=0)
2019-09-12 12:31:16.685 DEBUG 3280 --- [l-1 housekeeper] com.zaxxer.hikari.pool.HikariPool : HikariPool-1 - Pool stats (total=10, active=0, idle=10, waiting=0)
But when I run same app as 'administrator', then I see only 1 connection made to the db and an exception thrown when Hikari tries to open a second connection this time as user 'administrator'
2019-09-12 12:37:31.195 DEBUG 3514 --- [l-1 housekeeper] com.zaxxer.hikari.pool.HikariPool : HikariPool-1 - Pool stats (total=1, active=0, idle=1, waiting=0)
2019-09-12 12:37:46.091 DEBUG 3514 --- [onnection adder] com.zaxxer.hikari.pool.HikariPool : HikariPool-1 - Cannot acquire connection from data source

AWS RDS How to set up a MySQL Database

I have a Java application running on successfully on Amazon Web Services Elastic Beanstalk.
I am trying to set up MySQL. I have created a DB Instance as you can see:
Question 1:
How do I connect my Java App to the Database?
I have the following code (after viewing this):
#Bean
public DataSource dataSource() {
// Openshift
// String host = System.getenv("OPENSHIFT_MYSQL_DB_HOST");
// String port = System.getenv("OPENSHIFT_MYSQL_DB_PORT");
// String username = System.getenv("OPENSHIFT_MYSQL_DB_USERNAME");
// String password = System.getenv("OPENSHIFT_MYSQL_DB_PASSWORD");
// AWS
String host = System.getenv("RDS_HOSTNAME");
String port = System.getenv("RDS_PORT");
String username = System.getenv("RDS_USERNAME");
String password = System.getenv("RDS_PASSWORD");
String dbname = System.getenv("RDS_DB_NAME");
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(environment.getRequiredProperty("jdbc.driverClassName"));
if (host == null) {
dataSource.setUrl(environment.getRequiredProperty("jdbc.url"));
dataSource.setUsername(environment.getRequiredProperty("jdbc.username"));
dataSource.setPassword(environment.getRequiredProperty("jdbc.password"));
} else {
//dataSource.setUrl("jdbc:mysql://" + host + ":" + port + "/");
// Openshift
//dataSource.setUrl("jdbc:mysql://" + host + ":" + port + "/" + environment.getRequiredProperty("jdbc.dbname"));
// AWS
dataSource.setUrl("jdbc:mysql://" + host + ":" + port + "/" + dbname);
dataSource.setUsername(username);
dataSource.setPassword(password);
System.out.println("jdbc:mysql://" + host + ":" + port + "/" + dbname+", username: "+username+", password: "+password);
}
return dataSource;
}
(p.s. the commented out code works on OpenShifts server)
But I get the following:
org.springframework.web.util.NestedServletException: Request
processing failed; nested exception is
org.springframework.transaction.CannotCreateTransactionException:
Could not open JPA EntityManager for transaction; nested exception is
org.hibernate.exception.JDBCConnectionException: Unable to acquire
JDBC Connection
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:982)
Question 2:
From an existing database, in MySQL Workbench, I have exported sql scripts to create a schema and tables, and then populate them. How do I import this into the AWS RDS MySQL database?
More info:
Server Logs:
-------------------------------------
/var/log/tomcat8/localhost.2017-02-21.log
-------------------------------------
21-Feb-2017 14:42:51.133 INFO [localhost-startStop-1] org.apache.catalina.core.ApplicationContext.log 1 Spring WebApplicationInitializers detected on classpath
21-Feb-2017 14:42:51.737 INFO [localhost-startStop-1] org.apache.catalina.core.ApplicationContext.log Initializing Spring FrameworkServlet 'rest'
21-Feb-2017 14:57:36.680 SEVERE [http-nio-8080-exec-7] org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service() for servlet [rest] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is org.hibernate.exception.JDBCConnectionException: Unable to acquire JDBC Connection] with root cause
java.net.ConnectException: Connection refused (Connection refused)
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at java.net.Socket.connect(Socket.java:538)
at java.net.Socket.<init>(Socket.java:434)
at java.net.Socket.<init>(Socket.java:244)
at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:258)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:306)
at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2504)
at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2541)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2323)
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:832)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:408)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:417)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:344)
at java.sql.DriverManager.getConnection(DriverManager.java:664)
at java.sql.DriverManager.getConnection(DriverManager.java:208)
at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriverManager(DriverManagerDataSource.java:153)
at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriver(DriverManagerDataSource.java:144)
at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnectionFromDriver(AbstractDriverBasedDataSource.java:155)
at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnection(AbstractDriverBasedDataSource.java:120)
at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122)
at org.hibernate.internal.NonContextualJdbcConnectionAccess.obtainConnection(NonContextualJdbcConnectionAccess.java:35)
at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:99)
at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getPhysicalConnection(LogicalConnectionManagedImpl.java:129)
at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getConnectionForTransactionManagement(LogicalConnectionManagedImpl.java:247)
at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.begin(LogicalConnectionManagedImpl.java:254)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.begin(JdbcResourceLocalTransactionCoordinatorImpl.java:203)
at org.hibernate.engine.transaction.internal.TransactionImpl.begin(TransactionImpl.java:56)
at org.springframework.orm.jpa.DefaultJpaDialect.beginTransaction(DefaultJpaDialect.java:67)
at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:380)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373)
at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:427)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:276)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
at com.sun.proxy.$Proxy55.findAll(Unknown Source)
at com.jobs.spring.controller.CategoryRESTService.findAllCategorys(CategoryRESTService.java:31)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:114)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:676)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:509)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1104)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:684)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1520)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1476)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
21-Feb-2017 15:09:21.090 INFO [localhost-startStop-2] org.apache.catalina.core.ApplicationContext.log Destroying Spring FrameworkServlet 'rest'
21-Feb-2017 15:09:38.729 INFO [localhost-startStop-1] org.apache.catalina.core.ApplicationContext.log 1 Spring WebApplicationInitializers detected on classpath
21-Feb-2017 15:09:39.329 INFO [localhost-startStop-1] org.apache.catalina.core.ApplicationContext.log Initializing Spring FrameworkServlet 'rest'
UPDATE
I also added rules to open it for everyone, but still get the same error:

The problem has to do with your database and the security group.
Hover to the "i" icon next to the Cluster Endpoint.
A popup will appear with the security groups.
Hit the first default link and you will be redirected to the security groups configuration.
Then you have to edit the security group and add an inbound rule in order to include your local ip.
Keep in mind that this will work only if your rds is on a public subnet.
This link is pretty helpful for troubleshooting.
More information on security groups

Apache Drill connect from code

I have start embedded apache drill instance following this tutorial https://drill.apache.org/docs/using-the-jdbc-driver/ I can query drill from console. But now I need to connect it from my code.
Connection conn = null;
conn = DriverManager.getConnection("jdbc:drill:zk=localhost:31010");
When I run it I get following output in my IDE:
18:01:04.970 [main-SendThread(localhost:31010)] INFO org.apache.zookeeper.ClientCnxn - Opening socket connection to server localhost/0:0:0:0:0:0:0:1:31010. Will not attempt to authenticate using SASL (unknown error)
18:01:04.970 [main-SendThread(localhost:31010)] INFO org.apache.zookeeper.ClientCnxn - Socket connection established to localhost/0:0:0:0:0:0:0:1:31010, initiating session
18:01:04.971 [main-SendThread(localhost:31010)] DEBUG org.apache.zookeeper.ClientCnxn - Session establishment request sent on localhost/0:0:0:0:0:0:0:1:31010
18:01:04.972 [main-SendThread(localhost:31010)] INFO org.apache.zookeeper.ClientCnxn - Unable to read additional data from server sessionid 0x0, likely server has closed socket, closing socket connection and attempting reconnect
18:01:05.331 [main] DEBUG org.apache.curator.RetryLoop - Retrying operation
18:01:06.721 [main-SendThread(localhost:31010)] INFO org.apache.zookeeper.ClientCnxn - Opening socket connection to server localhost/127.0.0.1:31010. Will not attempt to authenticate using SASL (unknown error)
18:01:06.721 [main-SendThread(localhost:31010)] INFO org.apache.zookeeper.ClientCnxn - Socket connection established to localhost/127.0.0.1:31010, initiating session
18:01:06.721 [main-SendThread(localhost:31010)] DEBUG org.apache.zookeeper.ClientCnxn - Session establishment request sent on localhost/127.0.0.1:31010
18:01:06.722 [main-SendThread(localhost:31010)] INFO org.apache.zookeeper.ClientCnxn - Unable to read additional data from server sessionid 0x0, likely server has closed socket, closing socket connection and attempting reconnect
18:01:07.495 [main-SendThread(localhost:31010)] INFO org.apache.zookeeper.ClientCnxn - Opening socket connection to server localhost/0:0:0:0:0:0:0:1:31010. Will not attempt to authenticate using SASL (unknown error)
18:01:07.495 [main-SendThread(localhost:31010)] INFO org.apache.zookeeper.ClientCnxn - Socket connection established to localhost/0:0:0:0:0:0:0:1:31010, initiating session
18:01:07.495 [main-SendThread(localhost:31010)] DEBUG org.apache.zookeeper.ClientCnxn - Session establishment request sent on localhost/0:0:0:0:0:0:0:1:31010
18:01:07.496 [main-SendThread(localhost:31010)] INFO org.apache.zookeeper.ClientCnxn - Unable to read additional data from server sessionid 0x0, likely server has closed socket, closing socket connection and attempting reconnect
18:01:09.269 [main-SendThread(localhost:31010)] INFO org.apache.zookeeper.ClientCnxn - Opening socket connection to server localhost/127.0.0.1:31010. Will not attempt to authenticate using SASL (unknown error)
18:01:09.269 [main-SendThread(localhost:31010)] INFO org.apache.zookeeper.ClientCnxn - Socket connection established to localhost/127.0.0.1:31010, initiating session
18:01:09.269 [main-SendThread(localhost:31010)] DEBUG org.apache.zookeeper.ClientCnxn - Session establishment request sent on localhost/127.0.0.1:31010
18:01:09.270 [main-SendThread(localhost:31010)] INFO org.apache.zookeeper.ClientCnxn - Unable to read additional data from server sessionid 0x0, likely server has closed socket, closing socket connection and attempting reconnect
18:01:09.392 [main-SendThread(localhost:31010)] INFO org.apache.zookeeper.ClientCnxn - Opening socket connection to server localhost/0:0:0:0:0:0:0:1:31010. Will not attempt to authenticate using SASL (unknown error)
18:01:09.392 [main-SendThread(localhost:31010)] INFO org.apache.zookeeper.ClientCnxn - Socket connection established to localhost/0:0:0:0:0:0:0:1:31010, initiating session
18:01:09.392 [main-SendThread(localhost:31010)] DEBUG org.apache.zookeeper.ClientCnxn - Session establishment request sent on localhost/0:0:0:0:0:0:0:1:31010
18:01:09.393 [main-SendThread(localhost:31010)] INFO org.apache.zookeeper.ClientCnxn - Unable to read additional data from server sessionid 0x0, likely server has closed socket, closing socket connection and attempting reconnect
18:01:10.355 [main] ERROR org.apache.curator.ConnectionState - Connection timed out for connection string (localhost:31010) and timeout (5000) / elapsed (6199)
org.apache.curator.CuratorConnectionLossException: KeeperErrorCode = ConnectionLoss
at org.apache.curator.ConnectionState.checkTimeouts(ConnectionState.java:198) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.ConnectionState.getZooKeeper(ConnectionState.java:88) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.CuratorZookeeperClient.getZooKeeper(CuratorZookeeperClient.java:115) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.utils.EnsurePath$InitialHelper$1.call(EnsurePath.java:148) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:107) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.utils.EnsurePath$InitialHelper.ensure(EnsurePath.java:140) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.utils.EnsurePath.ensure(EnsurePath.java:99) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.framework.imps.NamespaceImpl.fixForNamespace(NamespaceImpl.java:74) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.framework.imps.NamespaceImpl.newNamespaceAwareEnsurePath(NamespaceImpl.java:87) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.framework.imps.CuratorFrameworkImpl.newNamespaceAwareEnsurePath(CuratorFrameworkImpl.java:468) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.framework.recipes.cache.PathChildrenCache.<init>(PathChildrenCache.java:223) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.framework.recipes.cache.PathChildrenCache.<init>(PathChildrenCache.java:182) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.x.discovery.details.ServiceCacheImpl.<init>(ServiceCacheImpl.java:65) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.x.discovery.details.ServiceCacheBuilderImpl.build(ServiceCacheBuilderImpl.java:47) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.drill.exec.coord.zk.ZKClusterCoordinator.<init>(ZKClusterCoordinator.java:104) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.drill.exec.client.DrillClient.connect(DrillClient.java:185) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.drill.jdbc.DrillConnectionImpl.<init>(DrillConnectionImpl.java:126) [drill-jdbc-1.0.0.jar:1.0.0]
at org.apache.drill.jdbc.DrillJdbc41Factory$DrillJdbc41Connection.<init>(DrillJdbc41Factory.java:97) [drill-jdbc-1.0.0.jar:1.0.0]
at org.apache.drill.jdbc.DrillJdbc41Factory.newDrillConnection(DrillJdbc41Factory.java:60) [drill-jdbc-1.0.0.jar:1.0.0]
at org.apache.drill.jdbc.DrillJdbc41Factory.newDrillConnection(DrillJdbc41Factory.java:46) [drill-jdbc-1.0.0.jar:1.0.0]
at org.apache.drill.jdbc.DrillFactory.newConnection(DrillFactory.java:54) [drill-jdbc-1.0.0.jar:1.0.0]
at net.hydromatic.avatica.UnregisteredDriver.connect(UnregisteredDriver.java:126) [drill-jdbc-all-1.0.0.jar:na]
at java.sql.DriverManager.getConnection(DriverManager.java:571) [na:1.7.0_67]
at java.sql.DriverManager.getConnection(DriverManager.java:233) [na:1.7.0_67]
at DrillConnectTest.testConnect(DrillConnectTest.java:34) [classes/:na]
at DrillConnectTest.main(DrillConnectTest.java:55) [classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.7.0_67]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[na:1.7.0_67]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.7.0_67]
at java.lang.reflect.Method.invoke(Method.java:606) ~[na:1.7.0_67]
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134) [idea_rt.jar:na]
18:01:10.355 [main] DEBUG org.apache.curator.RetryLoop - Retry-able exception received
org.apache.curator.CuratorConnectionLossException: KeeperErrorCode = ConnectionLoss
at org.apache.curator.ConnectionState.checkTimeouts(ConnectionState.java:198) ~[drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.ConnectionState.getZooKeeper(ConnectionState.java:88) ~[drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.CuratorZookeeperClient.getZooKeeper(CuratorZookeeperClient.java:115) ~[drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.utils.EnsurePath$InitialHelper$1.call(EnsurePath.java:148) ~[drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:107) ~[drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.utils.EnsurePath$InitialHelper.ensure(EnsurePath.java:140) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.utils.EnsurePath.ensure(EnsurePath.java:99) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.framework.imps.NamespaceImpl.fixForNamespace(NamespaceImpl.java:74) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.framework.imps.NamespaceImpl.newNamespaceAwareEnsurePath(NamespaceImpl.java:87) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.framework.imps.CuratorFrameworkImpl.newNamespaceAwareEnsurePath(CuratorFrameworkImpl.java:468) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.framework.recipes.cache.PathChildrenCache.<init>(PathChildrenCache.java:223) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.framework.recipes.cache.PathChildrenCache.<init>(PathChildrenCache.java:182) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.x.discovery.details.ServiceCacheImpl.<init>(ServiceCacheImpl.java:65) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.curator.x.discovery.details.ServiceCacheBuilderImpl.build(ServiceCacheBuilderImpl.java:47) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.drill.exec.coord.zk.ZKClusterCoordinator.<init>(ZKClusterCoordinator.java:104) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.drill.exec.client.DrillClient.connect(DrillClient.java:185) [drill-jdbc-all-1.0.0.jar:na]
at org.apache.drill.jdbc.DrillConnectionImpl.<init>(DrillConnectionImpl.java:126) [drill-jdbc-1.0.0.jar:1.0.0]
at org.apache.drill.jdbc.DrillJdbc41Factory$DrillJdbc41Connection.<init>(DrillJdbc41Factory.java:97) [drill-jdbc-1.0.0.jar:1.0.0]
at org.apache.drill.jdbc.DrillJdbc41Factory.newDrillConnection(DrillJdbc41Factory.java:60) [drill-jdbc-1.0.0.jar:1.0.0]
at org.apache.drill.jdbc.DrillJdbc41Factory.newDrillConnection(DrillJdbc41Factory.java:46) [drill-jdbc-1.0.0.jar:1.0.0]
at org.apache.drill.jdbc.DrillFactory.newConnection(DrillFactory.java:54) [drill-jdbc-1.0.0.jar:1.0.0]
at net.hydromatic.avatica.UnregisteredDriver.connect(UnregisteredDriver.java:126) [drill-jdbc-all-1.0.0.jar:na]
at java.sql.DriverManager.getConnection(DriverManager.java:571) [na:1.7.0_67]
at java.sql.DriverManager.getConnection(DriverManager.java:233) [na:1.7.0_67]
at DrillConnectTest.testConnect(DrillConnectTest.java:34) [classes/:na]
at DrillConnectTest.main(DrillConnectTest.java:55) [classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.7.0_67]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[na:1.7.0_67]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.7.0_67]
at java.lang.reflect.Method.invoke(Method.java:606) ~[na:1.7.0_67]
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134) [idea_rt.jar:na]
18:01:10.860 [main] DEBUG org.apache.curator.RetryLoop - Retrying operation
And this repeats in cycle. And in server logs also I see following:
2015-06-22 17:53:20,465 [UserServer-1] INFO o.a.d.exec.rpc.ProtobufLengthDecoder - Channel is closed, discarding remaining 48 byte(s) in buffer.
2015-06-22 17:53:21,232 [UserServer-1] ERROR o.a.d.exec.rpc.RpcExceptionHandler - Exception in RPC communication. Connection: /127.0.0.1:31010 <--> /127.0.0.1:55704 (user client). Closing connection.
io.netty.handler.codec.CorruptedFrameException: Received a message of length 0.
at org.apache.drill.exec.rpc.ProtobufLengthDecoder.decode(ProtobufLengthDecoder.java:74) ~[drill-java-exec-1.0.0-rebuffed.jar:1.0.0]
at org.apache.drill.exec.rpc.user.UserProtobufLengthDecoder.decode(UserProtobufLengthDecoder.java:37) ~[drill-java-exec-1.0.0-rebuffed.jar:1.0.0]
at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:315) ~[netty-codec-4.0.27.Final.jar:4.0.27.Final]
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:229) ~[netty-codec-4.0.27.Final.jar:4.0.27.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339) [netty-transport-4.0.27.Final.jar:4.0.27.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324) [netty-transport-4.0.27.Final.jar:4.0.27.Final]
at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86) [netty-transport-4.0.27.Final.jar:4.0.27.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339) [netty-transport-4.0.27.Final.jar:4.0.27.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324) [netty-transport-4.0.27.Final.jar:4.0.27.Final]
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:847) [netty-transport-4.0.27.Final.jar:4.0.27.Final]
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131) [netty-transport-4.0.27.Final.jar:4.0.27.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511) [netty-transport-4.0.27.Final.jar:4.0.27.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468) [netty-transport-4.0.27.Final.jar:4.0.27.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382) [netty-transport-4.0.27.Final.jar:4.0.27.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354) [netty-transport-4.0.27.Final.jar:4.0.27.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111) [netty-common-4.0.27.Final.jar:4.0.27.Final]
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_67]
2015-06-22 17:53:21,232 [UserServer-1] INFO o.a.d.exec.rpc.ProtobufLengthDecoder - Channel is closed, discarding remaining 48 byte(s) in buffer.
2015-06-22 17:53:23,324 [UserServer-1] ERROR o.a.d.exec.rpc.RpcExceptionHandler - Exception in RPC communication. Connection: /0:0:0:0:0:0:0:1:31010 <--> /0:0:0:0:0:0:0:1:55706 (user client). Closing connection.
io.netty.handler.codec.CorruptedFrameException: Received a message of length 0.
at org.apache.drill.exec.rpc.ProtobufLengthDecoder.decode(ProtobufLengthDecoder.java:74) ~[drill-java-exec-1.0.0-rebuffed.jar:1.0.0]
at org.apache.drill.exec.rpc.user.UserProtobufLengthDecoder.decode(UserProtobufLengthDecoder.java:37) ~[drill-java-exec-1.0.0-rebuffed.jar:1.0.0]
at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:315) ~[netty-codec-4.0.27.Final.jar:4.0.27.Final]
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:229) ~[netty-codec-4.0.27.Final.jar:4.0.27.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339) [netty-transport-4.0.27.Final.jar:4.0.27.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324) [netty-transport-4.0.27.Final.jar:4.0.27.Final]
at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86) [netty-transport-4.0.27.Final.jar:4.0.27.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339) [netty-transport-4.0.27.Final.jar:4.0.27.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324) [netty-transport-4.0.27.Final.jar:4.0.27.Final]
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:847) [netty-transport-4.0.27.Final.jar:4.0.27.Final]
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131) [netty-transport-4.0.27.Final.jar:4.0.27.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511) [netty-transport-4.0.27.Final.jar:4.0.27.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468) [netty-transport-4.0.27.Final.jar:4.0.27.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382) [netty-transport-4.0.27.Final.jar:4.0.27.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354) [netty-transport-4.0.27.Final.jar:4.0.27.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111) [netty-common-4.0.27.Final.jar:4.0.27.Final]
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_67]
2015-06-22 17:53:23,325 [UserServer-1] INFO o.a.d.exec.rpc.ProtobufLengthDecoder - Channel is closed, discarding remaining 48 byte(s) in buffer.
2015-06-22 17:53:23,460 [UserServer-1] ERROR o.a.d.exec.rpc.RpcExceptionHandler - Exception in RPC communication. Connection: /127.0.0.1:31010 <--> /127.0.0.1:55707 (user client). Closing connection.
io.netty.handler.codec.CorruptedFrameException: Received a message of length 0.
Any suggestion why this can happen? May be I need some extra setup of local drill?

You've used zk= in your JDBC URL, but the right hand side of that portion of the URL is pointing to 31010, which is the Drillbit's "user" port, per the docs:
http://drill.apache.org/docs/ports-used-by-drill/
For embedded mode you can try either:
jdbc:drill:zk=local
or
jdbc:drill:drillbit=localhost:31010
Hope that helps.

Other way to execute query by Calling Apache Drill REST API through code
Prerequisite:
1.Start Apache Drill
2.Add/enable Storage Plugin in http://localhost:8047/storage
3.Execute below code
public class RestAPI {
private static Log logger = LogFactory.getLog(RestAPI.class);
public static void main(String[] args) {
getQueryResponce();
}
private static void getQueryResponce(){
Client client = null;
WebTarget target = null;
try {
logger.info("---------Started execution-----------");
RequestQuery query = new RequestQuery();
query.setQueryType("SQL");
//MySQL
//query.setQuery("SELECT * FROM MYSQL.foodmart.collections");
//query.setQuery("SELECT * FROM MYSQL.foodmart.collections limit 100");
//query.setQuery("SELECT payment_due_from,NumItems FROM MYSQL.foodmart.collections limit 10");
//query.setQuery("SELECT count(SPORTS_PREFERENCE) FROM MYSQL.foodmart.collections group by SPORTS_PREFERENCE");
//query.setQuery("SELECT DISTINCT payment_due_from FROM MYSQL.foodmart.collections ");
//Mongo DB
//query.setQuery("select * from mongo.apache_drill.pt_BMS_preferences_data where SPORTS_PREFERENCE = 'Cricket' limit 10");
//query.setQuery("SELECT COUNT(SPORTS_PREFERENCE) FROM mongo.apache_drill.pt_BMS_preferences_data GROUP BY SPORTS_PREFERENCE");
query.setQuery("SELECT DISTINCT(SPORTS_PREFERENCE) FROM mongo.apache_drill.pt_BMS_preferences_data ");
client = ClientBuilder.newClient();
target = client.target("http://localhost:8047/query.json");
//target = target.path(path);
Response response = target.request().accept(MediaType.APPLICATION_JSON)
.post(Entity.json(query), Response.class);
if (response.getStatus() != 200) {
throw new RuntimeException("Failed : HTTP error code : " + response.getStatus());
}
String string = response.readEntity(String.class);
logger.info(query.getQueryType()+"->"+query.getQuery());
logger.info("Responce:\n"+string);
logger.info("---------End execution-----------");
} catch (Exception e) {
e.printStackTrace();
logger.error(e.getMessage(),e);
}
}
Hope this help...

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