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From "Masatake Iwasaki (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-9535) Fix TestReplication#testNoExtraReplicationWhenBlockReceivedIsLate
Date Fri, 11 Dec 2015 01:33:11 GMT

    [ https://issues.apache.org/jira/browse/HDFS-9535?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15051981#comment-15051981
] 

Masatake Iwasaki commented on HDFS-9535:
----------------------------------------

bq. For the first block, it is possible that NN receives 0 block-received msg from DN but
still commit the block when the client tries to get the next block. In that case we will add
the block into under-replicated queue instead of the pending queue, and block recovery will
happen in the cluster.

{{BlockManager#processMisReplicatedBlock}} will not process incomplete block. I think the
case is that block is completed but there is still pending block-received msg.
{code}
    if (!block.isComplete()) {
    // Incomplete blocks are never considered mis-replicated --
    // they'll be reached when they are completed or recovered.
      return MisReplicationResult.UNDER_CONSTRUCTION;
    }
{code}

> Fix TestReplication#testNoExtraReplicationWhenBlockReceivedIsLate
> -----------------------------------------------------------------
>
>                 Key: HDFS-9535
>                 URL: https://issues.apache.org/jira/browse/HDFS-9535
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.8.0
>            Reporter: Jing Zhao
>            Assignee: Mingliang Liu
>            Priority: Minor
>
> TestReplication#testNoExtraReplicationWhenBlockReceivedIsLate failed in several Jenkins
run (e.g., https://builds.apache.org/job/PreCommit-HDFS-Build/13818/testReport/). The failure
is on the last {{assertNoReplicationWasPerformed}} check.



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