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

["sunjincheng (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-15338?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

sunjincheng reassigned FLINK-15338:
-----------------------------------

    Assignee: Wei Zhong

> TM Metaspace memory leak when submitting PyFlink UDF jobs multiple times
> ------------------------------------------------------------------------
>
>                 Key: FLINK-15338
>                 URL: https://issues.apache.org/jira/browse/FLINK-15338
>             Project: Flink
>          Issue Type: Bug
>          Components: API / Python
>    Affects Versions: 1.10.0
>            Reporter: sunjincheng
>            Assignee: Wei Zhong
>            Priority: Major
>             Fix For: 1.10.0
>
>
> Start a standalone cluster and after submit PyFlink UDF jobs multiple times, the TM will fail with the following exception:
>  
> {code:java}
> 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)
> {code}



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