I'm getting errors running simple hadoop fs commands. I'm on a Mac running OS X 10.10.5, I've configured hadoop as a standalone cluster.
$ hadoop fs -ls
2015-09-26 06:59:20,531 WARN [main] util.NativeCodeLoader (NativeCodeLoader.java:<clinit>(62)) - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
-ls: For input string: "false"
Usage: hadoop fs [generic options] -ls [-d] [-h] [-R] [<path> ...]
$ hadoop fs -ls /
2015-09-26 07:26:16,629 WARN [main] util.NativeCodeLoader (NativeCodeLoader.java:<clinit>(62)) - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
-ls: For input string: "false"
Usage: hadoop fs [generic options] -ls [-d] [-h] [-R] [<path> ...]
$ hadoop fs -mkdir /user/hadoop
2015-09-26 07:01:05,356 WARN [main] util.NativeCodeLoader (NativeCodeLoader.java:<clinit>(62)) - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
-mkdir: For input string: "false"
Usage: hadoop fs [generic options] -mkdir [-p] <path> ...
I'm running a standalone hadoop 2.3.0 on OS X 10.10.5.
$ hadoop version
Hadoop 2.3.0
Subversion http://svn.apache.org/repos/asf/hadoop/common -r 1567123
Compiled by jenkins on 2014-02-11T13:40Z
Compiled with protoc 2.5.0
From source with checksum dfe46336fbc6a044bc124392ec06b85
This command was run using /Users/davidlaxer/hadoop-2.3.0/share/hadoop/common/hadoop-common-2.3.0.jar
$ java -version
java version "1.8.0_05"
Java(TM) SE Runtime Environment (build 1.8.0_05-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.5-b02, mixed mode)
I tried to fix the warning (so far without success). I suspect the warning is an unrelated issue:
WARN [main] util.NativeCodeLoader (NativeCodeLoader.java:<clinit>(62)) - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
$ env | grep HADOOP
HADOOP_HOME=/Users/davidlaxer/hadoop-2.3.0
HADOOP_COMMON_LIB_NATIVE_DIR=/Users/davidlaxer/hadoop-2.3.0/lib/native
HADOOP_CONF_DIR=/Users/davidlaxer/hadoop-2.3.0/etc/hadoop/conf
HADOOP_OPTS=-Djava.library.path=/Users/davidlaxer/hadoop-2.3.0/lib
Here are my hadoop config files which are in /Users/davidlaxer/hadoop-2.3.0/etc/hadoop/conf:
$ cat hdfs-site.xml
<configuration>
<property>
<name>dfs.replication</name>
<value>false</value>
</property>
</configuration>
$ cat core-site.xml
<configuration>
<property>
<name>fs.default.name</name>
<value>hdfs://localhost:9000</value>
</property>
</configuration>
$ cat mapred_site.xml
<configuration>
<property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>
</configuration>
$ cat yarn_site.xml
<configuration>
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
</configuration>
$ jps
99664 NameNode
4997 Jps
2202 ZeppelinServer
2283 RemoteInterpreterServer
2158 JupyterScala
99006 SecondaryNameNode
Same issue with hadoop 2.6.1 (downloaded as binary):
$ bin/hadoop version
Hadoop 2.6.1
Subversion https://git-wip-us.apache.org/repos/asf/hadoop.git -r b4d876d837b830405ccdb6af94742f99d49f9c04
Compiled by jenkins on 2015-09-16T21:07Z
Compiled with protoc 2.5.0
From source with checksum ba9a9397365e3ec2f1b3691b52627f
This command was run using /Users/davidlaxer/hadoop-2.6.1/share/hadoop/common/hadoop-common-2.6.1.jar
$ bin/hadoop fs -ls /
2015-09-26 07:44:55,977 WARN [main] util.NativeCodeLoader (NativeCodeLoader.java:<clinit>(62)) - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
-ls: For input string: "false"
Usage: hadoop fs [generic options] -ls [-d] [-h] [-R] [<path> ...]
The issue was in the config file: hdfs-site.xml
I had:
false.
I changed it to:
0
<configuration>
<property>
<name>dfs.replication</name>
<value>0</value>
</property>
</configuration>
Related
I have been attempting to deploy my Django project up on AWS ElasticBeanstalk via EB CLI n my local Pycharm project with the built in terminal.
Having setup IAM/group (through aws web console) I migrated and ran server locally (Pycharm terminal) and all works fine, and then created env/instance and requirements.txt and deployed using EB CLI in Pycharm and this also worked fine.
I setup a database connection on RDS (AWS web Console) then changed settings to connect to mysql, pip installed mysqlclient, migrate and ran locally (Pycharm terminal) and again all works fine.
However, when I try to deply the project again with mysqlclient installed I get errors and I just cannot figure out why.
Platform: arn:aws:elasticbeanstalk:us-west-2::platform/Python 3.7 running on 64bit Amazon Linux 2/3.3.7
Requirements.txt
asgiref==3.4.1
cement==2.8.2
certifi==2021.10.8
charset-normalizer==2.0.7
colorama==0.4.3
Django==3.2.9
django-storages==1.12.3
future==0.16.0
idna==3.3
jmespath==0.10.0
mysqlclient
pathspec==0.5.9
python-dateutil==2.8.2
pytz==2021.3
PyYAML==5.4.1
requests==2.26.0
s3transfer==0.5.0
semantic-version==2.8.5
six==1.14.0
sqlparse==0.4.2
termcolor==1.1.0
typing-extensions==3.10.0.2
urllib3==1.26.7
wcwidth==0.1.9
.ebextensions/django.config
option_settings:
aws:elasticbeanstalk:container:python:
WSGIPath: awsdeploy.wsgi:application
aws:elasticbeanstalk:environment:proxy:staticfiles:
/static: static
container_commands:
01_collectstatic:
command: "source /var/app/venv/staging-LQM1lest/bin/activate && python manage.py collectstatic --noinput --clear"
02_migrate:
command: "source /var/app/venv/staging-LQM1lest/bin/activate && python manage.py migrate --noinput"
leader_only: true
.ebextensions/packages.config
packages:
yum:
python3-devel: []
mariadb-devel: []
EB Error Logs
Collecting mysqlclient==2.0.3
Using cached mysqlclient-2.0.3.tar.gz (88 kB)
2021/11/11 02:10:40.712344 [ERROR] An error occurred during execution of command [app-deploy] - [InstallDependency]. Stop running the command. Error: fail to install dependencies with requirements.txt file with error Command /bin/sh -c /var/app/venv/staging-LQM1lest/bin/pip install -r requirements.txt failed wi
th error exit status 1. Stderr: ERROR: Command errored out with exit status 1:
command: /var/app/venv/staging-LQM1lest/bin/python -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-isj_ea8s/mysqlclient_f221eb2ed3c44d6e868da4539588d2a4/setup.py'"'"'; __file__='"'"'/tmp/pip-install-isj_ea8s/mysqlclient_f221eb2ed3c44d6e868da4539588d2a4/setup.py'"'"';f = ge
tattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-pip-egg-info-hzv5pj6h
cwd: /tmp/pip-install-isj_ea8s/mysqlclient_f221eb2ed3c44d6e868da4539588d2a4/
Complete output (15 lines):
/bin/sh: mysql_config: command not found
/bin/sh: mariadb_config: command not found
/bin/sh: mysql_config: command not found
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/tmp/pip-install-isj_ea8s/mysqlclient_f221eb2ed3c44d6e868da4539588d2a4/setup.py", line 15, in <module>
metadata, options = get_config()
File "/tmp/pip-install-isj_ea8s/mysqlclient_f221eb2ed3c44d6e868da4539588d2a4/setup_posix.py", line 70, in get_config
libs = mysql_config("libs")
File "/tmp/pip-install-isj_ea8s/mysqlclient_f221eb2ed3c44d6e868da4539588d2a4/setup_posix.py", line 31, in mysql_config
raise OSError("{} not found".format(_mysql_config_path))
OSError: mysql_config not found
mysql_config --version
mariadb_config --version
mysql_config --libs
----------------------------------------
WARNING: Discarding https://files.pythonhosted.org/packages/3c/df/59cd2fa5e48d0804d213bdcb1acb4d08c403b61c7ff7ed4dd4a6a2deb3f7/mysqlclient-2.0.3.tar.gz#sha256=f6ebea7c008f155baeefe16c56cd3ee6239f7a5a9ae42396c2f1860f08a7c432 (from https://pypi.org/simple/mysqlclient/) (requires-python:>=3.5). Command errored out
with exit status 1: python setup.py egg_info Check the logs for full command output.
ERROR: Could not find a version that satisfies the requirement mysqlclient==2.0.3 (from versions: 1.3.0, 1.3.1, 1.3.2, 1.3.3, 1.3.4, 1.3.5, 1.3.6, 1.3.7, 1.3.8, 1.3.9, 1.3.10, 1.3.11rc1, 1.3.11, 1.3.12, 1.3.13, 1.3.14, 1.4.0rc1, 1.4.0rc2, 1.4.0rc3, 1.4.0, 1.4.1, 1.4.2, 1.4.2.post1, 1.4.3, 1.4.4, 1.4.5, 1.4.6, 2
.0.0, 2.0.1, 2.0.2, 2.0.3, 2.1.0rc1)
ERROR: No matching distribution found for mysqlclient==2.0.3
WARNING: You are using pip version 21.2.4; however, version 21.3.1 is available.
You should consider upgrading via the '/var/app/venv/staging-LQM1lest/bin/python -m pip install --upgrade pip' command.
2021/11/11 02:10:40.712360 [INFO] Executing cleanup logic
2021/11/11 02:10:40.712489 [INFO] CommandService Response: {"status":"FAILURE","api_version":"1.0","results":[{"status":"FAILURE","msg":"Engine execution has encountered an error.","returncode":1,"events":[{"msg":"Instance deployment failed to install application dependencies. The deployment failed.","timestamp
":1636596640,"severity":"ERROR"},{"msg":"Instance deployment failed. For details, see 'eb-engine.log'.","timestamp":1636596640,"severity":"ERROR"}]}]}
2021/11/11 02:10:40.712674 [INFO] Platform Engine finished execution on command: app-deploy
I don't understand why prior to installing mysqlclient it's managed to deploy install all my packages from requirements file successfully but fails when mysqlclient was added - what am I missing?
Help is much appreciated, happy to share any other details if needed. Thanks
Edit
I came across the answer on this link: [https://stackoverflow.com/questions/67344766/error-encountered-while-installing-dependencies-for-flask-mysql-application-usin][1]
And created the .ebextensions/packages.config as suggested and removed version from mysqlclient within my requirements.txt file - updated above code.
Now mysqlclient appears to have installed succssfully but now get the following error:
New EB Error Logs
An error occurred during execution of command [app-deploy] - [PostBuildEbExtension]. Stop running the command. Error: container commands build failed. Please refer to /var/log/cfn-init.log for more details.
I'm also not sure how to check this log /var/log/cfn-init.log, when I go to the web console I can't see any eb instances listed or any logs.
I am successful using MySQL Workbench to do full crud on a Bluemix hosted MySQL Compose service.
I then built a simple Microservice with SpringBoot on my local laptop with Apache Derby... successful.
My next step was to use the MySQL Compose hosted in Bluemix.
I edited application.properties and ran into this error
"PKIX path building failed: ...."
"SunCertPathBuilderException: unable to find valid certification path to request target"
application.properties file
spring.jpa.hibernate.ddl-auto=create
spring.jpa.database-platform=org.hibernate.dialect.MySQLDialect
spring.datasource.url=jdbc:mysql://somedomain:port/compose?useSSL=true?requireSSL=true
spring.datasource.username=myname
spring.datasource.password=mypassword
Bluemix provided me these credentials in json:
{
"db_type": "mysql",
"name": "bmix-dal-yp-xxxxxxx-",
"uri_cli": "mysql -u myname -p --host somedomain.com --port 5555 --ssl-mode=REQUIRED",
"ca_certificate_base64": "LS0tLS1CRUd......",
"deployment_id": "58fexxxxxxxxxxx",
"uri": "mysql://myname:mypassword#somedomain.com:55555/compose"
}
Am I supposed to use the ca certificate somewhere in my application.properties?
Do I need to enable ssl on my embedded tomcat server running by default with springBoot?
How can I configure my springBoot application to connect to my cloud providers MySQL instance with SSL with the json they provided?
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
Add the following to your pom.xml (or equivalent):
...
<repositories>
<repository>
<id>jcenter</id>
<url>http://jcenter.bintray.com </url>
<snapshots>
<enabled>true</enabled>
<updatePolicy>never</updatePolicy>
<checksumPolicy>warn</checksumPolicy>
</snapshots>
<releases>
<enabled>true</enabled>
<checksumPolicy>warn</checksumPolicy>
</releases>
</repository>
</repositories>
...
<dependency>
<groupId>com.orange.clara.cloud.boot.ssl-truststore-gen</groupId>
<artifactId>spring-boot-ssl-truststore-gen</artifactId>
<version>2.0.21</version>
</dependency>
...
Add the following to your manifest.yml
env:
# Add the certificate from VCAP_SERVICES ca_certificate_base64
# You need to base64 decode the certificate and add it below
# E.g. echo '<<ca_certificate_base64>>' | base64 -D
TRUSTED_CA_CERTIFICATE: |-
-----BEGIN CERTIFICATE-----
...
-----END CERTIFICATE-----
For more information, see https://github.com/orange-cloudfoundry/spring-boot-ssl-truststore-gen
Also see a minimal app here: https://github.com/snowch/hello-spring-cloud/tree/8b9728a826dcc1995a7ccb19a852ac8face21147
This is my first answer - this did not work. Ignore this section.
One option is:
Import the cert to Java truststore file, pack the file into Java
application and specify its path via JAVA_OPTS environment variable;
the truststore file can be placed under resource directory. This can
be used for single applications:
By using the 'cf set-env' command:
cf set-env <app> JAVA_OPTS '-Djavax.net.ssl.TrustStore=classpath:resources/config/truststore -Djavax.net.ssl.trustStorePassword=changeit'
or, by using manifest.yml
applications:
- name: java-app
...
env:
JAVA_OPTS: '-Djavax.net.ssl.TrustStore=classpath:resources/config/truststore -Djavax.net.ssl.trustStorePassword=changeit'
Note that the certificate in the field ca_certificate_base64 is base64 encoded so you will need to decode it before adding it to your truststore, e.g.
Decode the certificate:
echo '<<ca_certificate_base64>>' | base64 -D > ca_certificate.pem
Create a truststore:
keytool -import -trustcacerts -file ca_certificate.pem -alias compose_cert -keystore resources/config/truststore -storepass changeit -noprompt
Note that the keystore location (resources/config/truststore) and the storepass (changeit) are set in the JAVA_OPTS.
There are a few different options you can try. See this documentation for more information: https://discuss.pivotal.io/hc/en-us/articles/223454928-How-to-tell-application-containers-running-Java-apps-to-trust-self-signed-certs-or-a-private-or-internal-CA
I installed cygnus and when I hit sudo service cygnus start I get the status OK running.
But the log file says:
Warning: JAVA_HOME is not set!
+ exec /usr/bin/java -Xmx20m -Dflume.log.file=cygnus.log -cp '/usr/cygnus/conf:/usr/cygnus/lib/*:/usr/cygnus/plugins.d/cygnus/lib/*:/usr/cygnus/plugins.d/cygnus/libext/*' -Djava.library.path= es.tid.fiware.fiwareconnectors.cygnus.nodes.CygnusApplication -p 8081 -f /usr/cygnus/conf/agent_1.conf -n cygnusagent
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/usr/cygnus/lib/slf4j-log4j12-1.6.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/cygnus/plugins.d/cygnus/lib/cygnus-0.7.1-jar-with-dependencies.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
I checked echo $JAVA_HOME and get:
/usr/lib/jvm/java-1.6.0-openjdk.x86_64
I also checked java -version and got:
java version "1.6.0_35"
OpenJDK Runtime Environment (IcedTea6 1.13.7) (rhel-1.13.7.1.el6_6-x86_64)
OpenJDK 64-Bit Server VM (build 23.25-b01, mixed mode)
So what am I missing here?
I did all these steps here:
Installing Cygnus
Open a terminal and simply configure the FIWARE repository if not yet
configured and use your applications manager in order to install the
latest version of Cy gnus (CentOS/RedHat example):
$ sudo cat > /etc/yum.repos.d/fiware.repo <http://repositories.testbed.fi-ware.eu/repo/rpm/x86_64/
gpgcheck=0 enabled=1 EOL $ sudo yum install cygnus
IMPORTANT NOTE:
Cygnus, as it is based on Apache Flume, needs Java SDK is installed.
If not yet installed, do it right now:
$ sudo yum install java-1.6.0-openjdk-devel
Remember to export the JAVA_HOME environment variable. In the case you
have installed Java SDK right now as shown above, this would be as:
$ export JAVA_HOME=/usr/lib/jvm/java-1.6.0-openjdk.x86_64
In order to do it permanently, edit /root/.bash_profile (root user) or
/etc/profile (other users).
Despite such a warning message, Cygus will run since the flume-ng (and derived cygnus-flume-ng) script looks for Java if JAVA_HOME is not set:
# find java
if [ -z "${JAVA_HOME}" ] ; then
warn "JAVA_HOME is not set!"
# Try to use Bigtop to autodetect JAVA_HOME if it's available
if [ -e /usr/libexec/bigtop-detect-javahome ] ; then
. /usr/libexec/bigtop-detect-javahome
elif [ -e /usr/lib/bigtop-utils/bigtop-detect-javahome ] ; then
. /usr/lib/bigtop-utils/bigtop-detect-javahome
fi
# Using java from path if bigtop is not installed or couldn't find it
if [ -z "${JAVA_HOME}" ] ; then
JAVA_DEFAULT=$(type -p java)
[ -n "$JAVA_DEFAULT" ] || error "Unable to find java executable. Is it in your PATH?" 1
JAVA_HOME=$(cd $(dirname $JAVA_DEFAULT)/..; pwd)
fi
fi
I'm trying to run Hadoop on a banana pi and I don't understand why my Hadoop isn't working.
I have an exception on running the very basic command
root#bananapi:/opt/hadoop# hadoop fs -ls
14/12/17 10:27:13 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
ls: Call From bananapi/10.0.2.150 to localhost:9000 failed on connection exception:
java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
root#bananapi:/opt/hadoop#
I have installed the followed jdk
root#bananapi:/opt/hadoop# java -version
java version "1.7.0_65"
OpenJDK Runtime Environment (IcedTea 2.5.3) (7u71-2.5.3-2~deb7u1)
OpenJDK Zero VM (build 24.65-b04, mixed mode)
My etc/hosts file is looking like this:
root#bananapi:/opt/hadoop# cat /etc/hosts
127.0.0.1 localhost
10.0.2.150 bananapi # wlan0
10.0.2.119 bananapi # eth0
::1 localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
The services (jps) is also running:
root#bananapi:/opt/hadoop# jps
3732 NodeManager
3317 NameNode
3644 ResourceManager
3401 DataNode
3513 SecondaryNameNode
3860 Jps
What I'm doinging wrong or why is commands not working?
P.S. I have also tried to run hdfs dfs -ls
UPDATE
my confs in the core-site.xml
<property>
<name>fs.default.name</name>
<value>hdfs://localhost:9000</value>
</property>
I also can't format the namenode
hadoop namenode -format
I have installed R3.0.1. Rtools is also installed. MySQL version 5.7 is installed. I want to connect R to MySQL, and I am trying to do that through RMySQL package in R.
While the installation of RMySQL is finally done after looking at various SO questions, the library command gives error. Please see below complete R logs. Please help.
> install.packages("RMySQL",type="source")
trying URL 'http://cran.rstudio.com/src/contrib/RMySQL_0.9-3.tar.gz'
Content type 'application/x-gzip' length 165363 bytes (161 Kb)
opened URL
downloaded 161 Kb
* installing *source* package 'RMySQL' ...
** package 'RMySQL' successfully unpacked and MD5 sums checked
checking for $MYSQL_HOME... C:/Program Files/MySQL/MySQL Server 5.7
cygwin warning:
MS-DOS style path detected: C:/Program
Preferred POSIX equivalent is: /cygdrive/c/Program
CYGWIN environment variable option "nodosfilewarning" turns off this warning.
Consult the user's guide for more details about POSIX paths:
http://cygwin.com/cygwin-ug-net/using.html#using-pathnames
test: Files/MySQL/MySQL: unknown operand
** libs
Warning: this package has a non-empty 'configure.win' file,
so building only the main architecture
cygwin warning:
MS-DOS style path detected: D:/SOFTWA~1/R-30~1.3/etc/x64/Makeconf
Preferred POSIX equivalent is: /cygdrive/d/SOFTWA~1/R-30~1.3/etc/x64/Makeconf
CYGWIN environment variable option "nodosfilewarning" turns off this warning.
Consult the user's guide for more details about POSIX paths:
http://cygwin.com/cygwin-ug-net/using.html#using-pathnames
gcc -m64 -I"D:/SOFTWA~1/R-30~1.3/include" -DNDEBUG -I"C:/Program Files/MySQL/MySQL Server 5.7"/include -I"d:/RCompile/CRANpkg/extralibs64/local/include" -O2 -Wall - std=gnu99 -mtune=core2 -c RS-DBI.c -o RS-DBI.o
RS-DBI.c: In function 'RS_na_set':
RS-DBI.c:1219:11: warning: variable 'c' set but not used [-Wunused-but-set-variable]
gcc -m64 -I"D:/SOFTWA~1/R-30~1.3/include" -DNDEBUG -I"C:/Program Files/MySQL/MySQL Server 5.7"/include -I"d:/RCompile/CRANpkg/extralibs64/local/include" -O2 -Wall - std=gnu99 -mtune=core2 -c RS-MySQL.c -o RS-MySQL.o
RS-MySQL.c: In function 'RS_MySQL_fetch':
RS-MySQL.c:657:13: warning: variable 'fld_nullOk' set but not used [-Wunused-but-set- variable]
RS-MySQL.c: In function 'RS_DBI_invokeBeginGroup':
RS-MySQL.c:1137:30: warning: variable 'val' set but not used [-Wunused-but-set-variable]
RS-MySQL.c: In function 'RS_DBI_invokeNewRecord':
RS-MySQL.c:1158:20: warning: variable 'val' set but not used [-Wunused-but-set-variable]
RS-MySQL.c: In function 'RS_MySQL_dbApply':
RS-MySQL.c:1219:38: warning: variable 'fld_nullOk' set but not used [-Wunused-but-set-variable]
gcc -m64 -shared -s -static-libgcc -o RMySQL.dll tmp.def RS-DBI.o RS-MySQL.o C:/Program Files/MySQL/MySQL Server 5.7/bin/libmySQL.dll - Ld:/RCompile/CRANpkg/extralibs64/local/lib/x64 -Ld:/RCompile/CRANpkg/extralibs64/local/lib -LD:/SOFTWA~1/R-30~1.3/bin/x64 -lR
installing to D:/Softwares/R-3.0.3/library/RMySQL/libs/x64
** R
** inst
** preparing package for lazy loading
Creating a generic function for 'format' from package 'base' in package 'RMySQL'
Creating a generic function for 'print' from package 'base' in package 'RMySQL'
** help
*** installing help indices
** building package indices
** installing vignettes
** testing if installed package can be loaded
MYSQL_HOME defined as C:/Program Files/MySQL/MySQL Server 5.7
* DONE (RMySQL)
The downloaded source packages are in
‘C:\Users\mitrabhanu.panda\AppData\Local\Temp\RtmpgZHT8R\downloaded_packages’
> library(RMySQL)
Looking in C:\Program Files/MySQL, C:/MySQL, D:/MySQL, E:/MySQL, F:/MySQL, G:/MySQL, C:/xampp/MySQL, D:/xampp/MySQL, E:/xampp/MySQL, F:/xampp/MySQL, G:/xampp/MySQL, C:/Apps/MySQL, D:/Apps/MySQL, E:/Apps/MySQL, F:/Apps/MySQL, G:/Apps/MySQL
Found C:\Program Files/MySQL
Error : .onLoad failed in loadNamespace() for 'RMySQL', details:
call: setwd(bin)
error: character argument expected
Error: package or namespace load failed for ‘RMySQL’
Please let me know what I have done wrong.
As written in my comment, here is the sample code for reading a table from mysql:
require(RJDBC)
j <- JDBC(classPath='/path/to/mysql/jdbc/jar', driverClass='com.mysql.jdbc.Driver')
connection <- dbConnect(j, 'jdbc:mysql://localhost/databasename', 'myusername','mypassword')
on.exit(dbDisconnect(connection))
data.frame.from.sql <- dbReadTable(connection, 'tablename')
This will read the table named tablename from databasename into data.frame.from.sql as an R data frame that you can manipulate as you see fit. I hope this helps.