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From "Sean Busbey (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-18865) Ensure system tables can have their WALs split prior to user tables
Date Fri, 22 Sep 2017 17:11:00 GMT
Sean Busbey created HBASE-18865:
-----------------------------------

             Summary: Ensure system tables can have their WALs split prior to user tables
                 Key: HBASE-18865
                 URL: https://issues.apache.org/jira/browse/HBASE-18865
             Project: HBase
          Issue Type: New Feature
          Components: wal
    Affects Versions: 2.0.0
            Reporter: Sean Busbey
            Priority: Critical
             Fix For: 2.0.0


>From a comment on HBASE-14190 and repeated on HBASE-18109 from [~yangzhe1991]:

{quote}
If I am not wrong, for system tables expect meta we still share logs with user regions, so
even if we have some logic to assign system tables first, we still need wait log splitting
done and we can not guarantee logs of system tables are split first. So there may be a blocking
task that we should make multi-log feature having priority and write entries of system table
in the highest priority logs. Thanks.
{quote}

This is an umbrella for working out our long term plan around how we handle WAL prioritization
and recovery.



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