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https://issues.apache.org/jira/browse/HDFS-3652?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon updated HDFS-3652:
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Target Version/s: 1.0.4, 1.1.0, 1.2.0 (was: 1.0.3, 1.1.0)
> 1.x: FSEditLog failure removes the wrong edit stream when storage dirs have
> same name
> -------------------------------------------------------------------------------------
>
> Key: HDFS-3652
> URL: https://issues.apache.org/jira/browse/HDFS-3652
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: name-node
> Affects Versions: 1.0.3, 1.1.0, 1.2.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Blocker
> Attachments: hdfs-3652.txt
>
>
> In {{FSEditLog.removeEditsForStorageDir}}, we iterate over the edits streams
> trying to find the stream corresponding to a given dir. To check equality, we
> currently use the following condition:
> {code}
> File parentDir = getStorageDirForStream(idx);
> if (parentDir.getName().equals(sd.getRoot().getName())) {
> {code}
> ... which is horribly incorrect. If two or more storage dirs happen to have
> the same terminal path component (eg /data/1/nn and /data/2/nn) then it will
> pick the wrong stream(s) to remove.
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