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https://issues.apache.org/jira/browse/HDFS-8026?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14388100#comment-14388100
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Hadoop QA commented on HDFS-8026:
---------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12708293/HDFS-8026.001.patch
against trunk revision 1a495fb.
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 1 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}. 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.hdfs.TestSetrepIncreasing
org.apache.hadoop.tracing.TestTracing
Test results:
https://builds.apache.org/job/PreCommit-HDFS-Build/10122//testReport/
Console output:
https://builds.apache.org/job/PreCommit-HDFS-Build/10122//console
This message is automatically generated.
> Trace FSOutputSummer#writeChecksumChunks rather than
> DFSOutputStream#writeChunk
> -------------------------------------------------------------------------------
>
> Key: HDFS-8026
> URL: https://issues.apache.org/jira/browse/HDFS-8026
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.7.0
> Reporter: Colin Patrick McCabe
> Assignee: Colin Patrick McCabe
> Priority: Minor
> Attachments: HDFS-8026.001.patch
>
>
> We should trace FSOutputSummer#writeChecksumChunks rather than
> DFSOutputStream#writeChunk. When tracing writeChunk, we get a new trace span
> every 512 bytes; when tracing writeChecksumChunks, we normally get a new
> trace span only when the FSOutputSummer buffer is full (9x less often.)
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