Zhe Zhang created HDFS-8302:
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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:
{code}
void purgeDataOlderThan(long minTxIdToKeep) throws IOException {
purgeMatching(sd.getCurrentDir(),
CURRENT_DIR_PURGE_REGEXES, minTxIdToKeep);
purgeMatching(getPaxosDir(), PAXOS_DIR_PURGE_REGEXES, minTxIdToKeep);
}
{code}
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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