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https://issues.apache.org/jira/browse/HDFS-14680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16897201#comment-16897201
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Chen Zhang edited comment on HDFS-14680 at 7/31/19 1:52 PM:
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{quote}But We have this thing in CDH5 for a long time (at least 3 years) and
not seeing this causing NN shutdown.
This is actually not true. It would shut down NN upon RuntimeException
(unchecked exceptions) only.
{quote}
Agree. so it looks not worth much attention, should we just leave the Jira here
or resolve it as "not a problem" first?
was (Author: zhangchen):
{quote}But We have this thing in CDH5 for a long time (at least 3 years) and
not seeing this causing NN shutdown.
This is actually not true. It would shut down NN upon RuntimeException
(unchecked exceptions) only.
{quote}
Agree. so it looks not worth much attention, so should we just leave the Jira
here or resolve it as "not a problem" first?
> StorageInfoDefragmenter should handle exceptions gently
> -------------------------------------------------------
>
> Key: HDFS-14680
> URL: https://issues.apache.org/jira/browse/HDFS-14680
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Chen Zhang
> Priority: Major
>
> StorageInfoDefragmenter is responsible for FoldedTreeSet compaction, but it
> terminates NameNode on any exception, is it too radical?
> I mean, even the critical threads like HeartbeatManager don't terminates
> NameNode once they encounter exceptions, StorageInfoDefragmenter should not
> do that either.
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