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https://issues.apache.org/jira/browse/YARN-448?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13592324#comment-13592324
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Hadoop QA commented on YARN-448:
--------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12571892/yarn-448.patch.txt
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:red}-1 tests included{color}. The patch doesn't appear to include
any new or modified tests.
Please justify why no new tests are needed for this
patch.
Also please list what manual steps were performed to
verify this patch.
{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-yarn-project/hadoop-yarn/hadoop-yarn-common.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-YARN-Build/458//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/458//console
This message is automatically generated.
> Remove unnecessary hflush from log aggregation
> ----------------------------------------------
>
> Key: YARN-448
> URL: https://issues.apache.org/jira/browse/YARN-448
> Project: Hadoop YARN
> Issue Type: Bug
> Components: nodemanager
> Affects Versions: 0.23.7, 2.0.4-beta
> Reporter: Kihwal Lee
> Assignee: Kihwal Lee
> Attachments: yarn-448.patch.txt
>
>
> AggregatedLogFormat#writeVersion() calls hflush() after writing the version.
> Calling hflush does not seem to be necessary. It can add a lot of load to
> hdfs in a big busy cluster.
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