[
https://issues.apache.org/jira/browse/HDFS-7433?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14535414#comment-14535414
]
Kihwal Lee commented on HDFS-7433:
----------------------------------
Test cases failed due to run time issues except for TestTraceAdmin. When ran
locally they pass without any problem.
As for TestTraceAdmin, it is failing the same way in trunk and for many other
precommit builds.
+1 for the latest patch.
> Optimize performance of DatanodeManager's node map
> --------------------------------------------------
>
> Key: HDFS-7433
> URL: https://issues.apache.org/jira/browse/HDFS-7433
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Affects Versions: 2.0.0-alpha, 3.0.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Priority: Critical
> Labels: BB2015-05-TBR
> Attachments: HDFS-7433.patch, HDFS-7433.patch, HDFS-7433.patch,
> HDFS-7433.patch
>
>
> The datanode map is currently a {{TreeMap}}. For many thousands of
> datanodes, tree lookups are ~10X more expensive than a {{HashMap}}.
> Insertions and removals are up to 100X more expensive.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
