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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-16455) Provide API for obtaining highest file number among all the WAL files
Date Fri, 19 Aug 2016 10:02:21 GMT
Ted Yu created HBASE-16455:
------------------------------

             Summary: Provide API for obtaining highest file number among all the WAL files
                 Key: HBASE-16455
                 URL: https://issues.apache.org/jira/browse/HBASE-16455
             Project: HBase
          Issue Type: Improvement
            Reporter: Ted Yu
            Assignee: Ted Yu


Currently RegionServerServices has the following API:
{code}
  WAL getWAL(HRegionInfo regionInfo) throws IOException;
{code}
Caller can only obtain filenum for a specific WAL.

When multi wal is in use, we should add API for obtaining highest file number among all the
outstanding WAL files.

User can pass null to getWAL() method above, but the filenum for the returned WAL may not
be the highest among all the WAL files.
See log snippet in the first comment.



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