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https://issues.apache.org/jira/browse/HDFS-9113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14877347#comment-14877347
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Yi Liu commented on HDFS-9113:
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+1, thanks Uma.
I think this is caused by HDFS-8899 where change to use a threadpool but
mistake to remove original {{try... catch..}}
> ErasureCodingWorker#processErasureCodingTasks should not fail to process
> remaining tasks due to one invalid ECTask
> ------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-9113
> URL: https://issues.apache.org/jira/browse/HDFS-9113
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: datanode
> Affects Versions: HDFS-7285
> Reporter: Uma Maheswara Rao G
> Assignee: Uma Maheswara Rao G
> Priority: Minor
> Attachments: HDFS-9113-HDFS-7285-00.patch
>
>
> Currently processErasureCodingTasks method submits ecTasks to thread pool
> service for processing the tasks. While submitting we initialize
> ReconstructAndTransferBlock with each ecTask and submit it. There are chances
> ReconstructAndTransferBlock initialization can fail due to wrong values as we
> had preconditions for parameter validations in Ctor. Anyway, whatever may be
> the case, processErasureCodingTasks should not fail and throw exceptions out
> as it could prevent processing other tasks in the list.
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