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https://issues.apache.org/jira/browse/HDFS-11180?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Akira Ajisaka updated HDFS-11180:
---------------------------------
Attachment: HDFS-11180.04.patch
04 patch:
* Ignored findbugs warnings.
* There are some metrics using the newly unsynchronized FSEditLog methods and
the metrics are used by non-metrics code. I created some new methods using
synchronized FSEditLog methods for non-metrics code.
* Removed try-with-resources statement for regression test. This makes easier
for backporting to branch-2.6/2.7.
* Fixed some issues, such as calling Preconditions.checkState in unsynchronized
method.
> Intermittent deadlock in NameNode when failover happens.
> --------------------------------------------------------
>
> Key: HDFS-11180
> URL: https://issues.apache.org/jira/browse/HDFS-11180
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.6.0
> Reporter: Abhishek Modi
> Assignee: Akira Ajisaka
> Priority: Blocker
> Labels: high-availability
> Attachments: HDFS-11180.00.patch, HDFS-11180.01.patch,
> HDFS-11180.02.patch, HDFS-11180.03.patch, HDFS-11180.04.patch, jstack.log
>
>
> It is happening due to metrics getting updated at the same time when failover
> is happening. Please find attached jstack at that point of time.
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