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https://issues.apache.org/jira/browse/HDFS-4486?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14107803#comment-14107803
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Hadoop QA commented on HDFS-4486:
---------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12663785/HDFS-4486-20140822-2.patch
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}. There were no new javadoc 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 2.0.3) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:red}-1 core tests{color}. The patch failed these unit tests in
hadoop-common-project/hadoop-common hadoop-hdfs-project/hadoop-hdfs:
org.apache.hadoop.security.token.delegation.web.TestWebDelegationToken
The following test timeouts occurred in
hadoop-common-project/hadoop-common hadoop-hdfs-project/hadoop-hdfs:
org.apache.hadoop.hdfs.server.datanode.TestDataNodeMultipleRegistrations
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HDFS-Build/7731//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/7731//console
This message is automatically generated.
> Add log category for long-running DFSClient notices
> ---------------------------------------------------
>
> Key: HDFS-4486
> URL: https://issues.apache.org/jira/browse/HDFS-4486
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Todd Lipcon
> Assignee: Zhe Zhang
> Priority: Minor
> Attachments: HDFS-4486-20140820.patch, HDFS-4486-20140821.patch,
> HDFS-4486-20140822-2.patch, HDFS-4486-20140822.patch,
> hdfs-4486-20140821-2.patch
>
>
> There are a number of features in the DFS client which are transparent but
> can make a fairly big difference for performance -- two in particular are
> short circuit reads and native checksumming. Because we don't want log spew
> for clients like "hadoop fs -cat" we currently log only at DEBUG level when
> these features are disabled. This makes it difficult to troubleshoot/verify
> for long-running perf-sensitive clients like HBase.
> One simple solution is to add a new log category - eg
> o.a.h.h.DFSClient.PerformanceAdvisory - which long-running clients could
> enable at DEBUG level without getting the full debug spew.
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