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Posted to issues@hbase.apache.org by "Wei-Chiu Chuang (JIRA)" <ji...@apache.org> on 2018/06/05 16:43:00 UTC
[jira] [Commented] (HBASE-20686) Asyncfs should retry upon
RetryStartFileException
[ https://issues.apache.org/jira/browse/HBASE-20686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16502079#comment-16502079 ]
Wei-Chiu Chuang commented on HBASE-20686:
-----------------------------------------
Attach a simple fix to make the behavior consistent with DFSOutputStream. [^HBASE-20686.master.001.patch] Will attach a test as well later.
> 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
> Priority: Major
> Attachments: HBASE-20686.master.001.patch
>
>
> 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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