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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-10436) hbase 0.96+ jmx does not have regionserver info any more.
Date Mon, 10 Feb 2014 02:45:21 GMT

    [ https://issues.apache.org/jira/browse/HBASE-10436?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13896176#comment-13896176
] 

Hadoop QA commented on HBASE-10436:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12627906/hbase-10436.notbean.patch
  against trunk revision .
  ATTACHMENT ID: 12627906

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 3 new or modified
tests.

    {color:green}+1 hadoop1.0{color}.  The patch compiles against the hadoop 1.0 profile.

    {color:green}+1 hadoop1.1{color}.  The patch compiles against the hadoop 1.1 profile.

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any warning messages.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:green}+1 lineLengths{color}.  The patch does not introduce lines longer than 100

    {color:red}-1 site{color}.  The patch appears to cause mvn site goal to fail.

    {color:green}+1 core tests{color}.  The patch passed unit tests in .

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/8646//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8646//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8646//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8646//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8646//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8646//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8646//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8646//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8646//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-thrift.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8646//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/8646//console

This message is automatically generated.

> hbase 0.96+ jmx does not have regionserver info any more.
> ---------------------------------------------------------
>
>                 Key: HBASE-10436
>                 URL: https://issues.apache.org/jira/browse/HBASE-10436
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.98.0, 0.96.0, 0.99.0
>            Reporter: Jonathan Hsieh
>            Assignee: Jonathan Hsieh
>            Priority: Critical
>         Attachments: hbase-10436.notbean.patch, hbase-10436.patch, hbase-10436.v2.patch
>
>
> HBase 0.96's refactored jmx beans do not contain the master's list of dead region servers
and live regionservers with load info.  HBase 0.94 did (though in a single monolithic blob).
 
> This JMX interface should be considered as much of an API as the the normal wire or java
api.  Dropping values from this was done without deprecation and the removal of this information
is a functional regression.
> We should provide the information in the 0.96+ JMX.  HBase 0.94 had a  monolithic JMX
blob ("hadoop:service=Master,name=Master")  that contained a lot of information, including
the regionserver list and the cached regionserver load for each region  found on the master
webpage.  0.96+ refactored jmx this into several jmx beans which could be selectively retrieved.
 These include:
> * hadoop:service=HBase,name=Master,sub=AssignmentManager
> * hadoop:service=HBase,name=Master,sub=Balancer
> * hadoop:service=HBase,name=Master,sub=Server
> * hadoop:service=HBase,name=Master,sub=FileSystem
> Specifically the (Hadoop:service=HBase,name=Master,sub=Server) listing that used to contain
regionservers and deadregionservers in jmx were replaced in   with numRegionServers and numDeadRegionservers
which only contain counts.  
> I propose just adding another mbean called "RegionServers" under the bean: "hadoop:service=HBase,name=Master,sub=RegionServers"



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