[FLINK-15338] TM Metaspace memory leak when submitting PyFlink UDF jobs multiple times

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.10.0
• Fix Version/s: 1.10.0
• Component/s: API / Python
• Labels: pull-request-available
• Assignee: Wei Zhong
• Reporter: sunjincheng
• Created: 20/Dec/19 03:13
• Updated: 09/Jan/20 06:01
• Resolved: 09/Jan/20 06:01

Description

Start a standalone cluster and after submit PyFlink UDF jobs multiple times, the TM will fail with the following exception:

 

Caused by: java.lang.OutOfMemoryError: Metaspace
  at java.lang.ClassLoader.defineClass1(Native Method)
  at java.lang.ClassLoader.defineClass(ClassLoader.java:788)
  at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
  at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
  at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
  at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
  at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
  at java.security.AccessController.doPrivileged(Native Method)
  at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:448)
  at org.apache.flink.util.ChildFirstClassLoader.loadClass(ChildFirstClassLoader.java:60)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:380)
  at org.apache.flink.api.python.shaded.com.fasterxml.jackson.databind.ObjectMapper.<init>(ObjectMapper.java:628)
  at org.apache.flink.api.python.shaded.com.fasterxml.jackson.databind.ObjectMapper.<init>(ObjectMapper.java:531)
  at org.apache.beam.sdk.options.PipelineOptionsFactory.<clinit>(PipelineOptionsFactory.java:469)
  at org.apache.flink.python.AbstractPythonFunctionRunner.open(AbstractPythonFunctionRunner.java:173)
  at org.apache.flink.table.runtime.operators.python.AbstractPythonScalarFunctionOperator$ProjectUdfInputPythonScalarFunctionRunner.open(AbstractPythonScalarFunctionOperator.java:193)
  at org.apache.flink.streaming.api.operators.python.AbstractPythonFunctionOperator.open(AbstractPythonFunctionOperator.java:139)
  at org.apache.flink.table.runtime.operators.python.AbstractPythonScalarFunctionOperator.open(AbstractPythonScalarFunctionOperator.java:143)
  at org.apache.flink.table.runtime.operators.python.BaseRowPythonScalarFunctionOperator.open(BaseRowPythonScalarFunctionOperator.java:86)
  at org.apache.flink.streaming.runtime.tasks.StreamTask.initializeStateAndOpen(StreamTask.java:1018)
  at org.apache.flink.streaming.runtime.tasks.StreamTask.lambda$beforeInvoke$0(StreamTask.java:454)
  at org.apache.flink.streaming.runtime.tasks.StreamTask$$Lambda$125/800044563.run(Unknown Source)
  at org.apache.flink.streaming.runtime.tasks.StreamTaskActionExecutor$SynchronizedStreamTaskActionExecutor.runThrowing(StreamTaskActionExecutor.java:94)
  at org.apache.flink.streaming.runtime.tasks.StreamTask.beforeInvoke(StreamTask.java:449)
  at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:461)
  at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:702)
  at org.apache.flink.runtime.taskmanager.Task.run(Task.java:527)
  at java.lang.Thread.run(Thread.java:834)

Issue Links

• relates to: BEAM-9006 Meta space memory leak caused by the shutdown hook of ProcessManager
• links to: GitHub Pull Request #10772