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Posted to issues@hbase.apache.org by "Xiaolin Ha (Jira)" <ji...@apache.org> on 2021/12/01 09:01:00 UTC

[jira] [Created] (HBASE-26526) Introduce a timeout to shutdown of WAL

Xiaolin Ha created HBASE-26526:
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             Summary: Introduce a timeout to shutdown of WAL
                 Key: HBASE-26526
                 URL: https://issues.apache.org/jira/browse/HBASE-26526
             Project: HBase
          Issue Type: Improvement
          Components: wal
    Affects Versions: 2.0.0, 3.0.0-alpha-1
            Reporter: Xiaolin Ha
            Assignee: Xiaolin Ha


When the regionserver is aborted(server.isAborted() is true), it will just reject the newly coming requests, so it is important to keep a short time to stop to make a short MTTR. 

When the WAL is shutting down, we can wait some time to flush the unacked appends, but if that is a long time, I think we can just abort without flushing them. 

By introducing a timeout for WAL shutdown, we can control the shutdown time, especially for those sensitive businesses.



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