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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-1806) TestBlockReport.blockReport_08() and _09() are timing-dependent and likely to fail on fast servers
Date Wed, 20 Apr 2011 23:33:08 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1806?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13022430#comment-13022430
] 

Hudson commented on HDFS-1806:
------------------------------

Integrated in Hadoop-Hdfs-trunk #643 (See [https://builds.apache.org/hudson/job/Hadoop-Hdfs-trunk/643/])
    HDFS-1806. TestBlockReport.blockReport_08() and _09() are timing-dependent and likely
to fail on fast servers. Contributed by Matt Foley.


> TestBlockReport.blockReport_08() and _09() are timing-dependent and likely to fail on
fast servers
> --------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-1806
>                 URL: https://issues.apache.org/jira/browse/HDFS-1806
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: data-node, name-node
>    Affects Versions: 0.22.0, 0.23.0
>            Reporter: Matt Foley
>            Assignee: Matt Foley
>             Fix For: 0.22.0, 0.23.0
>
>         Attachments: TestBlockReport.java.patch, blockReport_08_failure_log.html
>
>
> Method waitForTempReplica() polls every 100ms during block replication, attempting to
"catch" a datanode in the state of having a TEMPORARY replica.  But examination of a current
Hudson test failure log shows that the replica goes from "start" to "TEMPORARY" to "FINALIZED"
in only 50ms, so of course the poll usually misses it.

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