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https://issues.apache.org/jira/browse/SPARK-41483?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-41483:
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Assignee: Apache Spark
> MetricsSystem report takes too much time, which may lead to spark application
> failed on yarn.
> ---------------------------------------------------------------------------------------------
>
> Key: SPARK-41483
> URL: https://issues.apache.org/jira/browse/SPARK-41483
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 2.4.8
> Reporter: Deng An
> Assignee: Apache Spark
> Priority: Major
>
> My issue is similar to: SPARK-31625（
> [https://github.com/apache/spark/pull/28435).]
> In the scenario where the shutdown hook does not run (e.g., timeouts, etc.),
> the application is not unregistered, resulting in YARN RM resubmitting the
> application even if it succeeded.
> {code:java}
> 22/12/08 09:28:06 INFO ApplicationMaster: Final app status: SUCCEEDED,
> exitCode: 0
> 22/12/08 09:28:06 INFO SparkContext ：Invoking stop() from shut down hook
> 22/12/08 09:28:06 INFO SparkContext ：SparkUI ： Stopped Spark web UI at xxx
> 22/12/08 09:28:16 WARN ShutdownHookManager: ShutdownHook '$anon$2' timeout,
> java.util.concurrent.TimeoutException java.util.concurrent.TimeoutException
> at java.util.concurrent.FutureTask.get(FutureTask.java:205) at
> org.apache.hadoop.util.ShutdownHookManager$1.run(ShutdownHookManager.java:67)
> 22/12/08 09:28:26 WARN ShutdownHookManager: ShutdownHook 'ClientFinalizer'
> timeout, java.util.concurrent.TimeoutException
> java.util.concurrent.TimeoutException at
> java.util.concurrent.FutureTask.get(FutureTask.java:205) at
> org.apache.hadoop.util.ShutdownHookManager$1.run(ShutdownHookManager.java:67)
> 22/12/08 09:28:36 ERROR ShutdownHookManager: ShutdownHookManger shutdown
> forcefully. {code}
> From the log, it seems that the shutdown hook of SparkContext is hang after
> the UI is closed. Finally, the hadoop shutdown manager threw a timeout
> exception and shutdown forcefully.
> This eventually led to the Spark Application being marked as FAILED by Yarn,
> because the unregister in the ApplicationMaster was not executed.
>
> From the code of SparkContext # stop(), after closing the web UI, it is
> metricsSystem # report. However, this method may be blocked for a long time
> for various reasons (such as network timeout), which is the root cause of the
> final shutdown hook timeout.
> In our scenario, the network is unstable during an abnormal period of time,
> which causes sinks to take a long time to throw a connection time out
> exception, which directly causes the SparkContext to fail to stop within 10s.
> {code:java}
> Utils.tryLogNonFatalError {
> _ui.foreach(_.stop())
> }
> if (env != null) {
> Utils.tryLogNonFatalError {
> env.metricsSystem.report()
> }
> } {code}
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