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Posted to dev@hbase.apache.org by "Guanghao Zhang (Jira)" <ji...@apache.org> on 2019/11/13 10:10:00 UTC

[jira] [Created] (HBASE-23286) Improve MTTR: Split WAL to HFile

Guanghao Zhang created HBASE-23286:
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             Summary: Improve MTTR: Split WAL to HFile
                 Key: HBASE-23286
                 URL: https://issues.apache.org/jira/browse/HBASE-23286
             Project: HBase
          Issue Type: Improvement
          Components: MTTR
            Reporter: Guanghao Zhang


After HBASE-20724, the compaction event marker is not used anymore when failover. So our new proposal is split WAL to HFile to imporve MTTR. It has 3 steps:
 # Read WAL and write HFile to region’s column family’s recovered.hfiles directory.
 # Open region.
 # Bulkload the recovered.hfiles for every column family.

The design doc was attathed by a google doc. Any suggestions are welcomed.



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