How to provide SERVICE_NAME in the connection options in mysql npm? - mysql

Question

I have a JDBC connection string something like this
jdbc:oracle:thin:#(DESCRIPTION=(ADDRESS_LIST=(LOAD_BALANCE=OFF)(ADDRESS=(PROTOCOL=TCP)(HOST=hostname)(PORT=1711))(ADDRESS=(PROTOCOL=TCP)(HOST=hostname)(PORT=1712)))(CONNECT_DATA=(SERVICE_NAME=servicename)(SERVER=DEDICATED)))
I have created the connection as
var connection = mysql.createConnection({
host: "hostname",
port: "1711",
user: "user",
password: "password"
});
How do I also provide SERVICE_NAME (like the jdbc string) to the connection options?
I am getting the following error without it:
Error: connect ECONNREFUSED <some_ip>:1711
at Object.exports._errnoException (util.js:1028:11)
at exports._exceptionWithHostPort (util.js:1051:20)
at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1090:14)
--------------------
EDIT:
Changing the port to 1712 gives me a different error after taking a lot of time.
Error: Connection lost: The server closed the connection.
at Protocol.end (..\node_modules\mysql\lib\protocol\Protocol.js:113:13)
at Socket.<anonymous> (..\node_modules\mysql\lib\Connection.js:109:28)
at emitNone (events.js:91:20)
at Socket.emit (events.js:186:7)
at endReadableNT (_stream_readable.js:974:12)
at _combinedTickCallback (internal/process/next_tick.js:74:11)
at process._tickCallback (internal/process/next_tick.js:98:9)
EDIT: Sorry. I didn't see the database was oracle and started trying mysql directly.

Answer 1

I am assuming that your mysql server is running on port 1711 not default port.
And if you are getting Connection lost error mean there are something wrong on your network try to reconnect your server after sometime.
var conn;
function handleDisconnect() {
conn = mysql.createConnection(//your config);
conn.connect(function(err) {
if(err) {
console.log('error when connecting to database:', err);
setTimeout(handleDisconnectConnection, 5000);
}
});
connection.on('error', function(err) {
console.log('db error', err);
if(err.code === 'PROTOCOL_CONNECTION_LOST') {
handleDisconnectConnection();
} else {
throw err;
}
});
}
handleDisconnectConnection();
Hope that will work for you