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https://issues.apache.org/jira/browse/HDFS-9527?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15049734#comment-15049734
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Jing Zhao commented on HDFS-9527:
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The new patch looks good to me. The failed tests should be unrelated. +1
The failed {{TestReplication#testNoExtraReplicationWhenBlockReceivedIsLate}}
seems flaky. We can fix it in a separate jira.
> The return type of FSNamesystem.getBlockCollection should be changed to
> INodeFile
> ---------------------------------------------------------------------------------
>
> Key: HDFS-9527
> URL: https://issues.apache.org/jira/browse/HDFS-9527
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Reporter: Tsz Wo Nicholas Sze
> Assignee: Tsz Wo Nicholas Sze
> Priority: Minor
> Attachments: h9527_20151208.patch, h9527_20151209.patch
>
>
> FSNamesystem.getBlockCollection always returns INodeFile. It avoids
> unnecessary conversion from BlockCollection to INode/INodeFile after the
> change.
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