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https://issues.apache.org/jira/browse/HDFS-3940?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13633647#comment-13633647
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Tsz Wo (Nicholas), SZE commented on HDFS-3940:
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I guess you mean FSNamesystem#close. Then, the BlockManager.shutdown() in the
trunk patch should be removed. Otherwise, blocksMap.close() is called in both
close() and shutdown() in BlockManager.
+1 on the b1 patch.
> Add Gset#clear method and clear the block map when namenode is shutdown
> -----------------------------------------------------------------------
>
> Key: HDFS-3940
> URL: https://issues.apache.org/jira/browse/HDFS-3940
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 2.0.0-alpha
> Reporter: Eli Collins
> Assignee: Suresh Srinivas
> Priority: Minor
> Fix For: 2.0.5-beta
>
> Attachments: HDFS-3940.b1.patch, HDFS-3940.branch-1.patch,
> HDFS-3940.patch, HDFS-3940.patch
>
>
> Per HDFS-3936 it would be useful if GSet has a clear method so BM#close could
> clear out the LightWeightGSet.
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