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https://issues.apache.org/jira/browse/HADOOP-9090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13508747#comment-13508747
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Hadoop QA commented on HADOOP-9090:
-----------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12555692/HADOOP-9090.justEnhanceDefaultImpl.9.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 2 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. The javadoc tool did not generate any
warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{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 core tests{color}. The patch passed unit tests in
hadoop-common-project/hadoop-common.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HADOOP-Build/1837//testReport/
Console output:
https://builds.apache.org/job/PreCommit-HADOOP-Build/1837//console
This message is automatically generated.
> Support on-demand publish of metrics
> ------------------------------------
>
> Key: HADOOP-9090
> URL: https://issues.apache.org/jira/browse/HADOOP-9090
> Project: Hadoop Common
> Issue Type: New Feature
> Components: metrics
> Reporter: Mostafa Elhemali
> Priority: Minor
> Attachments: HADOOP-9090.2.patch,
> HADOOP-9090.justEnhanceDefaultImpl.2.patch,
> HADOOP-9090.justEnhanceDefaultImpl.3.patch,
> HADOOP-9090.justEnhanceDefaultImpl.4.patch,
> HADOOP-9090.justEnhanceDefaultImpl.5.patch,
> HADOOP-9090.justEnhanceDefaultImpl.6.patch,
> HADOOP-9090.justEnhanceDefaultImpl.7.patch,
> HADOOP-9090.justEnhanceDefaultImpl.8.patch,
> HADOOP-9090.justEnhanceDefaultImpl.9.patch,
> HADOOP-9090.justEnhanceDefaultImpl.patch, HADOOP-9090.patch
>
>
> Updated description based on feedback:
> We have a need to publish metrics out of some short-living processes, which
> is not really well-suited to the current metrics system implementation which
> periodically publishes metrics asynchronously (a behavior that works great
> for long-living processes). Of course I could write my own metrics system,
> but it seems like such a waste to rewrite all the awesome code currently in
> the MetricsSystemImpl and supporting classes.
> The way this JIRA solves this problem is adding a new method
> publishMetricsNow() to the MetricsSystemImpl() class, that does a synchronous
> out-of-band push of the metrics from the sources to the sink. I also add a
> method to MetricsSinkAdapter (putMetricsImmediate) to support that change.
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