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https://issues.apache.org/jira/browse/HDFS-1806?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13016576#comment-13016576
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Matt Foley commented on HDFS-1806:
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Hi Cos, I hope so. I'm going to try it with both loops polling at 5ms. If it
gets through Hudson I'll tie in both HDFS-953 and HDFS-733.
> 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
> Reporter: Matt Foley
> Attachments: 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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