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https://issues.apache.org/jira/browse/KNOX-1440?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16630570#comment-16630570
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ASF subversion and git services commented on KNOX-1440:
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Commit a4c263f06235955e789b487ca13053bc8a196aa1 in knox's branch
refs/heads/master from [[email protected]]
[ https://git-wip-us.apache.org/repos/asf?p=knox.git;h=a4c263f ]
KNOX-1440 - retry should not be attempted for DataNode interaction failures
> WEBHDFS: retry should not be attempted for datanode write failures
> ------------------------------------------------------------------
>
> Key: KNOX-1440
> URL: https://issues.apache.org/jira/browse/KNOX-1440
> Project: Apache Knox
> Issue Type: Improvement
> Components: Server
> Affects Versions: 1.1.0
> Reporter: Phil Zampino
> Assignee: Phil Zampino
> Priority: Major
> Fix For: 1.2.0
>
>
> For WEBHDFS invocations through Knox, if a *datanode* write fails with an
> IOException, the currently configured HA dispatch (DefaultHaDispatch)
> attempts the invocation the configured number of times.
> HDFS dev says that it would be appropriate to more simply respond with the
> error, deferring the decision to retry to the client.
> The best resolution for this is to have the datanode interactions use the
> DefaultDispatch (rather than the DefaultHaDispatch) even when HA is enabled,
> such that no retry/failover will be attempted for those interactions.
> (FYI: the datanode dispatch is configured in the WEBHDFS service definition)
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