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https://issues.apache.org/jira/browse/HBASE-14082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14698192#comment-14698192
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Hadoop QA commented on HBASE-14082:
-----------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12750643/HBASE-14082-v4.patch
against master branch at commit ecba08829da149aca11929b5b88a6df880e0da35.
ATTACHMENT ID: 12750643
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 11 new
or modified tests.
{color:green}+1 hadoop versions{color}. The patch compiles with all
supported hadoop versions (2.4.0 2.4.1 2.5.0 2.5.1 2.5.2 2.6.0 2.7.0)
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 protoc{color}. The applied patch does not increase the
total number of protoc compiler warnings.
{color:red}-1 javadoc{color}. The javadoc tool appears to have generated 1
warning messages.
{color:green}+1 checkstyle{color}. The applied patch does not increase the
total number of checkstyle errors
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 2.0.3) 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:green}+1 site{color}. The mvn post-site goal succeeds with this patch.
{color:red}-1 core tests{color}. The patch failed these unit tests:
{color:red}-1 core zombie tests{color}. There are 1 zombie test(s):
at
org.apache.hadoop.hbase.mapreduce.TestHFileOutputFormat2.testMRIncrementalLoadWithSplit(TestHFileOutputFormat2.java:385)
Test results:
https://builds.apache.org/job/PreCommit-HBASE-Build/15114//testReport/
Release Findbugs (version 2.0.3) warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/15114//artifact/patchprocess/newFindbugsWarnings.html
Checkstyle Errors:
https://builds.apache.org/job/PreCommit-HBASE-Build/15114//artifact/patchprocess/checkstyle-aggregate.html
Javadoc warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/15114//artifact/patchprocess/patchJavadocWarnings.txt
Console output:
https://builds.apache.org/job/PreCommit-HBASE-Build/15114//console
This message is automatically generated.
> Add replica id to JMX metrics names
> -----------------------------------
>
> Key: HBASE-14082
> URL: https://issues.apache.org/jira/browse/HBASE-14082
> Project: HBase
> Issue Type: Improvement
> Components: metrics
> Reporter: Lei Chen
> Assignee: Lei Chen
> Attachments: HBASE-14082-v1.patch, HBASE-14082-v2.patch,
> HBASE-14082-v3.patch, HBASE-14082-v4.patch
>
>
> Today, via JMX, one cannot distinguish a primary region from a replica. A
> possible solution is to add replica id to JMX metrics names. The benefits may
> include, for example:
> # Knowing the latency of a read request on a replica region means the first
> attempt to the primary region has timeout.
> # Write requests on replicas are due to the replication process, while the
> ones on primary are from clients.
> # In case of looking for hot spots of read operations, replicas should be
> excluded since TIMELINE reads are sent to all replicas.
> To implement, we can change the format of metrics names found at
> {code}Hadoop->HBase->RegionServer->Regions->Attributes{code}
> from
> {code}namespace_<namespace>_table_<tablename>_region_<regionname>_metric_<metricname>{code}
> to
> {code}namespace_<namespace>_table_<tablename>_region_<regionname>_replicaid_<replicaid>_metric_<metricname>{code}
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