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https://issues.apache.org/jira/browse/HBASE-5407?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13215099#comment-13215099
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Phabricator commented on HBASE-5407:
------------------------------------
Kannan has commented on the revision "[jira][HBASE-5407][89-fb] Show the
per-region level request/sec count in the web ui".
INLINE COMMENTS
src/main/java/org/apache/hadoop/hbase/HServerLoad.java:279 I think these
fields need not/shouldn't be part of the serialize/deserialize -- otherwise,
we'll break client-server interop for the getClusterStatus call.
We temporarily ran into similar problem before and the relevant stack is:
at java.io.DataInputStream.readFully(DataInputStream.java:152)
at
org.apache.hadoop.hbase.HServerLoad$RegionLoad.readFields(HServerLoad.java:211)
at
org.apache.hadoop.hbase.HServerLoad.readFields(HServerLoad.java:512)
at
org.apache.hadoop.hbase.HServerInfo.readFields(HServerInfo.java:228)
at
org.apache.hadoop.hbase.ClusterStatus.readFields(ClusterStatus.java:226)
at
org.apache.hadoop.hbase.io.HbaseObjectWritable.readObject(HbaseObjectWritable.java:489)
at
org.apache.hadoop.hbase.io.HbaseObjectWritable.readFields(HbaseObjectWritable.java:230)
at
org.apache.hadoop.hbase.ipc.HBaseClient$Connection.receiveResponse(HBaseClient.java:534)
at
org.apache.hadoop.hbase.ipc.HBaseClient$Connection.run(HBaseClient.java:459)
java.lang.reflect.UndeclaredThrowableException
at $Proxy0.getClusterStatus(Unknown Source)
at
org.apache.hadoop.hbase.client.HBaseAdmin.getClusterStatus(HBaseAdmin.java:1076)
We should remove these from serialize/deserialize, but the metrics should
still be available for viewing the web-ui.
REVISION DETAIL
https://reviews.facebook.net/D1779
BRANCH
regionRequest
> Show the per-region level request/sec count in the web ui
> ---------------------------------------------------------
>
> Key: HBASE-5407
> URL: https://issues.apache.org/jira/browse/HBASE-5407
> Project: HBase
> Issue Type: Improvement
> Reporter: Liyin Tang
> Assignee: Liyin Tang
> Attachments: D1779.1.patch, D1779.1.patch, D1779.1.patch
>
>
> It would be nice to show the per-region level request/sec count in the web
> ui, especially when debugging the hot region problem.
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