All Apps and Add-ons

Oracle JDBC for DB connect, NoClassDefFound

potatok
Explorer

I'm testing the DB connect to Oracle. I've been having problems with JDBC drivers. Where should I put the drivers exactly? and which files are needed?

Thanks.
Will

2013-03-19 10:52:41.103 dbx3480:ERROR:BridgeSession - Exception occured while executing command: java.lang.NoClassDefFoundError: Could not initialize class oracle.jdbc.driver.DMSFactory
java.lang.NoClassDefFoundError: Could not initialize class oracle.jdbc.driver.DMSFactory
at oracle.jdbc.driver.PhysicalConnection.createDMSSensors(PhysicalConnection.java:3855)
at oracle.jdbc.driver.PhysicalConnection.(PhysicalConnection.java:641)
at oracle.jdbc.driver.T4CConnection.(T4CConnection.java:237)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:33)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:566)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:185)
at com.splunk.dbx.sql.type.impl.AbstractDatabaseType.connect(AbstractDatabaseType.java:123)
at com.splunk.dbx.sql.type.impl.Oracle.connect(Oracle.java:48)
at com.splunk.dbx.sql.Database.connect(Database.java:445)
at com.splunk.dbx.sql.Database.validateConnectionParameters(Database.java:377)
at com.splunk.dbx.sql.validate.DatabaseValidator.invoke(DatabaseValidator.java:29)
at com.splunk.bridge.session.BridgeSession.call(BridgeSession.java:92)
at com.splunk.bridge.session.BridgeSession.call(BridgeSession.java:30)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:662)

0 Karma
1 Solution

potatok
Explorer

I'm running CentOS 6.2 with Splunk 5.0.2. Java 1.6.0_43

ojdbc*.jar was copied to the correct dir.

Then I got
java.lang.ClassNotFoundException: oracle.dms.console.DMSConsole

this is resolved by finding dms.jar from our Oracle server and copy it to the same dir

View solution in original post

0 Karma

splunkIT
Splunk Employee
Splunk Employee

Most likely the issue is caused by the java jre/jdk version used. I had ran into this error on jre 1.6. Once I have upgraded to jre 1.7, the error has stopped occurring. I only needed the ojdbc6.jar in $SPLUNK_HOME/etc/apps/dbx/bin/lib and it has been working fine.

The latest jre/jdk can be obtained here:

http://www.oracle.com/technetwork/java/javase/downloads/index.html

0 Karma

potatok
Explorer

I'm running CentOS 6.2 with Splunk 5.0.2. Java 1.6.0_43

ojdbc*.jar was copied to the correct dir.

Then I got
java.lang.ClassNotFoundException: oracle.dms.console.DMSConsole

this is resolved by finding dms.jar from our Oracle server and copy it to the same dir

0 Karma

ziegfried
Influencer

Please put the file ojdbc6.jar from the Oracle JDBC driver distribution into $SPLUNK_HOME/etc/apps/dbx/bin/lib and restart Splunk.

0 Karma

potatok
Explorer

I'm running CentOS 6.2 with Splunk 5.0.2. Java 1.6.0_43

0 Karma

potatok
Explorer

I have the jar and I restarted Splunk

$ ls -1 /opt/splunk/etc/apps/dbx/bin/lib/ojdbc*
/opt/splunk/etc/apps/dbx/bin/lib/ojdbc5dms.jar
/opt/splunk/etc/apps/dbx/bin/lib/ojdbc5.jar
/opt/splunk/etc/apps/dbx/bin/lib/ojdbc6dms.jar
/opt/splunk/etc/apps/dbx/bin/lib/ojdbc6.jar

From the "Recent DB Connect errors" search, I found this
11:35:36.712 dbx4539:ERROR:BridgeSession - Exception occured while executing command: java.lang.NoClassDefFoundError: Could not initialize class oracle.jdbc.driver.DMSFactory
java.lang.NoClassDefFoundError: Could not initialize class oracle.jdbc.driver.DMSFactory

0 Karma
Get Updates on the Splunk Community!

Introducing the 2024 Splunk MVPs!

We are excited to announce the 2024 cohort of the Splunk MVP program. Splunk MVPs are passionate members of ...

Splunk Custom Visualizations App End of Life

The Splunk Custom Visualizations apps End of Life for SimpleXML will reach end of support on Dec 21, 2024, ...

Introducing Splunk Enterprise 9.2

WATCH HERE! Watch this Tech Talk to learn about the latest features and enhancements shipped in the new Splunk ...