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https://issues.apache.org/jira/browse/SPARK-16395?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen updated SPARK-16395:
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Assignee: Sean Owen
> Fail if too many CheckpointWriteHandlers are queued up in the fixed thread
> pool
> -------------------------------------------------------------------------------
>
> Key: SPARK-16395
> URL: https://issues.apache.org/jira/browse/SPARK-16395
> Project: Spark
> Issue Type: Improvement
> Components: Streaming
> Reporter: Yan Chen
> Assignee: Sean Owen
> Fix For: 2.1.0
>
>
> When the batch interval is small and time spent writing to HDFS for
> checkpointing is always longer than the batch interval, the
> CheckpointWriteHandlers could be queued up in the fixed thread pool.
> Memory issue could happen in this situation.
> So if we can log a warning if this situation happens, it will help a lot of
> people when they encounter the same problem.
> The idea is if the size of the queue exceeds some number, we log a warning
> saying it's queued up.
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