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Posted to issues@spark.apache.org by "Shixiong Zhu (JIRA)" <ji...@apache.org> on 2016/12/20 19:13:58 UTC
[jira] [Resolved] (SPARK-18820) Driver may send "LaunchTask" before
executor receive "RegisteredExecutor"
[ https://issues.apache.org/jira/browse/SPARK-18820?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Shixiong Zhu resolved SPARK-18820.
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Resolution: Duplicate
> Driver may send "LaunchTask" before executor receive "RegisteredExecutor"
> -------------------------------------------------------------------------
>
> Key: SPARK-18820
> URL: https://issues.apache.org/jira/browse/SPARK-18820
> Project: Spark
> Issue Type: Bug
> Components: Scheduler
> Affects Versions: 1.6.3
> Environment: spark-1.6.3
> Reporter: jin xing
>
> CoarseGrainedSchedulerBackend will update executorDataMap after receiving "RegisterExecutor", thus task scheduler may assign tasks on to this executor;
> If LaunchTask arrives at CoarseGrainedExecutorBackend before RegisteredExecutor, it will result in NullPointerException and executor backend will exit;
> Is it a bug? If so can I make a pr? I think driver should send "LaunchTask" after "RegisteredExecutor" is already received.
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