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ParameterValue
spark.eventLog.enabledThis should be set to true.
spark.eventLog.dirSet <DAS_HOME>/work as the location to save the logs.
Info

When you enable logging in a multi node DAS cluster, the DAS nodes can consume too much CPU and sometimes run out of memory as a result of too many log directories being created in the <DAS_HOME>/work directory. This can be due to the symbolic link not being properly set. To address this, it is recommended to update the <DAS_HOME>/bin/wso2server.sh file with the following entry so that the <DAS_HOME> is exported. 

Export CARBON_HOME=<symbolic link


Monitoring via Spark UIs

Note

Before you enable Spark UIs, note that they are only supported with HTTP, and the Environment tab of Application UI may display security sensitive information such as the keystore password depending on your Spark Configuration.

If you do not want to expose such information, you can disable Spark UIs as explained in Disabling Spark UI.

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