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From "Zhe Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-8302) Consolidate log purging logic in QJM and FJM
Date Thu, 30 Apr 2015 18:16:06 GMT
Zhe Zhang created HDFS-8302:

             Summary: Consolidate log purging logic in QJM and FJM
                 Key: HDFS-8302
                 URL: https://issues.apache.org/jira/browse/HDFS-8302
             Project: Hadoop HDFS
          Issue Type: Improvement
            Reporter: Zhe Zhang
            Assignee: Zhe Zhang

When executing {{purgeLogsOlderThan}}, {{JNStorage}} purges both the current directory and
the Paxos directory using its own logic:
  void purgeDataOlderThan(long minTxIdToKeep) throws IOException {
    purgeMatching(getPaxosDir(), PAXOS_DIR_PURGE_REGEXES, minTxIdToKeep);

Meanwhile, FJM has its own logic of serving {{purgeLogsOlderThan}}, which is executed only
under the legacy NFS-based journaling configuration.

This JIRA aims to consolidate these 2 separate purging procedures

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