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https://issues.apache.org/jira/browse/HDFS-8178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16918088#comment-16918088
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Istvan Fajth commented on HDFS-8178:
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After reviewing the test results, it seems that these test failures are
unrelated to the changes, the first one failed on a timeout due to a slower
startup of the NameNode than the test expected.
The second one seems to be a timing issue in the test, and the JournalNode
seems to be starting too quickly and the socket did not got freed up until that
point.
I am attaching 3 files:
* HDFS-8178.008.patch : addressing checkstyle issues in the patch, and review
comments by Wei-Chiu, and a refactoring in the test code.
* HDFS-8178.008.addendum : addressing all checkstyle issues in the files that
are in the patch
* HDFS-8178.008.merged: the patch and the addendum merged together
> QJM doesn't move aside stale inprogress edits files
> ---------------------------------------------------
>
> Key: HDFS-8178
> URL: https://issues.apache.org/jira/browse/HDFS-8178
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: qjm
> Reporter: Zhe Zhang
> Assignee: Istvan Fajth
> Priority: Major
> Labels: BB2015-05-TBR
> Attachments: HDFS-8178.000.patch, HDFS-8178.002.patch,
> HDFS-8178.003.patch, HDFS-8178.004.patch, HDFS-8178.005.patch,
> HDFS-8178.006.patch, HDFS-8178.007.patch, HDFS-8178.008.addendum,
> HDFS-8178.008.merged, HDFS-8178.008.patch
>
>
> When a QJM crashes, the in-progress edit log file at that time remains in the
> file system. When the node comes back, it will accept new edit logs and those
> stale in-progress files are never cleaned up. QJM treats them as regular
> in-progress edit log files and tries to finalize them, which potentially
> causes high memory usage. This JIRA aims to move aside those stale edit log
> files to avoid this scenario.
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