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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-9574) Reduce client failures during datanode restart
Date Fri, 08 Jan 2016 18:24:39 GMT

     [ https://issues.apache.org/jira/browse/HDFS-9574?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kihwal Lee updated HDFS-9574:
-----------------------------
    Attachment: HDFS-9574.v3.br26.patch

The 2.6 patch is identical to the 2.7 patch except, these two minor differences.
- {{StopWatch}} is not available, so {{Time.monotonicNow()}} was used instead.
- {{DataNodeFaultInjector}} does not have {{set()}} method. {{instance}} is directly set in
the test case.

> Reduce client failures during datanode restart
> ----------------------------------------------
>
>                 Key: HDFS-9574
>                 URL: https://issues.apache.org/jira/browse/HDFS-9574
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Kihwal Lee
>            Assignee: Kihwal Lee
>         Attachments: HDFS-9574.patch, HDFS-9574.v2.patch, HDFS-9574.v3.br26.patch, HDFS-9574.v3.br27.patch,
HDFS-9574.v3.patch
>
>
> Since DataXceiverServer is initialized before BP is fully up, client requests will fail
until the datanode registers.



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