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From "Vinayakumar B (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-11898) DFSClient#isHedgedReadsEnabled() should be per client flag
Date Sun, 28 May 2017 09:49:04 GMT

     [ https://issues.apache.org/jira/browse/HDFS-11898?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vinayakumar B updated HDFS-11898:
---------------------------------
    Attachment: HDFS-11898-01.patch

Attached the patch.

Found this while trying to run both hedged and non-hedge preads in HDFS-11708.
Thanks [~shv] for pointing out the failure in HDFS-11708.

> DFSClient#isHedgedReadsEnabled() should be per client flag 
> -----------------------------------------------------------
>
>                 Key: HDFS-11898
>                 URL: https://issues.apache.org/jira/browse/HDFS-11898
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs-client
>            Reporter: Vinayakumar B
>            Assignee: Vinayakumar B
>         Attachments: HDFS-11898-01.patch
>
>
> DFSClient#isHedgedReadsEnabled() returns value based on static {{HEDGED_READ_THREAD_POOL}}.

> Hence if any of the client initialized this in JVM, all remaining client reads will be
going through hedged read itself.
> This flag should be per client value.



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