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https://issues.apache.org/jira/browse/HDFS-7929?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14363646#comment-14363646
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Hadoop QA commented on HDFS-7929:
---------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12704832/HDFS-7929-001.patch
against trunk revision ed4e72a.
{color:red}-1 patch{color}. Trunk compilation may be broken.
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/9900//console
This message is automatically generated.
> inotify unable fetch pre-upgrade edit log segments once upgrade starts
> ----------------------------------------------------------------------
>
> Key: HDFS-7929
> URL: https://issues.apache.org/jira/browse/HDFS-7929
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Zhe Zhang
> Assignee: Zhe Zhang
> Attachments: HDFS-7929-000.patch, HDFS-7929-001.patch
>
>
> inotify is often used to periodically poll HDFS events. However, once an HDFS
> upgrade has started, edit logs are moved to /previous on the NN, which is not
> accessible. Moreover, once the upgrade is finalized /previous is currently
> lost forever.
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