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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-3956) QJM: purge temporary files when no longer within retention period
Date Wed, 19 Sep 2012 03:21:08 GMT
Todd Lipcon created HDFS-3956:
---------------------------------

             Summary: QJM: purge temporary files when no longer within retention period
                 Key: HDFS-3956
                 URL: https://issues.apache.org/jira/browse/HDFS-3956
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: ha
    Affects Versions: QuorumJournalManager (HDFS-3077)
            Reporter: Todd Lipcon
            Assignee: Todd Lipcon
            Priority: Minor


After doing a bunch of fault testing, I noticed that the JNs had a bunch of temporary files
left around in their journal directories which were no longer within the retention period.
For example, if a JN crashes in the middle of recovery, it can leave around a file like {{edits_inprogress_123.epoch=10}}.
These files are handy to keep around for forensics/debugging while they are still in their
retention period, but we should not leave them forever. The normal purging policy should apply.

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