[GitHub] [flink] TisonKun commented on a change in pull request #11165: [FLINK-14038][docs] Extend Application Profiling documentation

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TisonKun commented on a change in pull request #11165: [FLINK-14038][docs] Extend Application Profiling documentation
URL: https://github.com/apache/flink/pull/11165#discussion_r382349547
 
 

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 File path: docs/monitoring/application_profiling.md
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 @@ -53,4 +53,32 @@ compiler used to inspect inlining decisions, hot methods, bytecode, and assembly
 env.java.opts: "-XX:+UnlockDiagnosticVMOptions -XX:+TraceClassLoading -XX:+LogCompilation -XX:LogFile=${FLINK_LOG_PREFIX}.jit -XX:+PrintAssembly"
 {% endhighlight %}
 
+## Analyzing Out of Memory Problems
+
+If you encounter `OutOfMemoryExceptions` with your Flink application, then it is a good idea to enable heap dumps on out of memory errors.
+
+{% highlight yaml %}
+env.java.opts: "-XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=${FLINK_LOG_PREFIX}.hprof"
+{% endhighlight %}
+
+The heap dump will allow you to analyze potential memory leaks in your user code.
+If the memory leak should be caused by Flink, then please reach out to the dev mailing list.
 
 Review comment:
   link to dev mailing list?

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