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Posted to issues@hbase.apache.org by "Wei-Chiu Chuang (JIRA)" <ji...@apache.org> on 2018/06/05 16:41:01 UTC

[jira] [Created] (HBASE-20686) Asyncfs should retry upon RetryStartFileException

Wei-Chiu Chuang created HBASE-20686:
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             Summary: Asyncfs should retry upon RetryStartFileException
                 Key: HBASE-20686
                 URL: https://issues.apache.org/jira/browse/HBASE-20686
             Project: HBase
          Issue Type: Bug
          Components: asyncclient
    Affects Versions: 2.0.0-beta-1
         Environment: HBase 2.0, Hadoop 3 with at-rest encryption

            Reporter: Wei-Chiu Chuang
            Assignee: Wei-Chiu Chuang


In Hadoop-2.6 and above, HDFS client retries on RetryStartFileException when NameNode experience encryption zone related issue. The code exists in DFSOutputStream#newStreamForCreate(). (HDFS-6970)

In HBase-2's asyncfs implementation, FanOutOneBlockAsyncDFSOutputHelper#createOutput() is somewhat an imitation of HDFS's DFSOutputStream#newStreamForCreate(). However it does not retry upon RetryStartFileException. So it is less resilient to such issues.

Also, DFSOutputStream#newStreamForCreate() upwraps RemoteExceptions, but asyncfs does not. Therefore, hbase gets different exceptions than before.

File this jira to get this corrected.



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