Splunk Dev

OutOfMemoryError: Java heap space error in Splunk add-on for JMX

kkarthik_splunk
Splunk Employee
Splunk Employee

I am trying to reproduce a case where the following error occurs in splunkd.log and as a result data collection stops:

09-24-2019 21:44:45.713 +0200 ERROR ExecProcessor - message from "python /$SPLUNK_HOME/etc/apps/Splunk_TA_jmx/bin/jmx.py" Exception in thread "Thread-20" java.lang.OutOfMemoryError: Java heap space

In this case, the datacollection resumes only after restarting Splunk.

I am able to get OutOfMemory Error by reducing the maximum heap space in java by making the following changes in file

$SPLUNK_HOME/etc/apps/Splunk_TA_jmx/bin/java_consts.py (line 43) 
JAVA_COMMON_ARGS = [JAVA_EXECUTABLE, "-Xmx8m","-classpath", CLASSPATH, "-Dconfighome=" + CONFIG_HOME,
                    "-Dsplunkhome=" + SPLUNK_HOME]

However, in my case, the OutOfMemory Error goes away after a few minutes and datacollection resumes.

For the issue I am trying to reproduce, 151 inputs are configured in the addon.

Can anyone tell why this error occurs, how can I reproduce it and is there a way to resolve it?

Labels (1)
0 Karma
Get Updates on the Splunk Community!

Introducing Splunk Enterprise 9.2

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

Adoption of RUM and APM at Splunk

    Unleash the power of Splunk Observability   Watch Now In this can't miss Tech Talk! The Splunk Growth ...

Routing logs with Splunk OTel Collector for Kubernetes

The Splunk Distribution of the OpenTelemetry (OTel) Collector is a product that provides a way to ingest ...