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https://issues.apache.org/jira/browse/HDFS-8008?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14391648#comment-14391648
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Hadoop QA commented on HDFS-8008:
---------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12708771/HDFS-8008.002.patch
against trunk revision a3a96a0.
{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-hdfs-project/hadoop-hdfs:
org.apache.hadoop.hdfs.server.namenode.ha.TestPipelinesFailover
The following test timeouts occurred in
hadoop-hdfs-project/hadoop-hdfs:
org.apache.hadoop.hdfs.server.blockmanagement.TestDatanodeManager
Test results:
https://builds.apache.org/job/PreCommit-HDFS-Build/10149//testReport/
Console output:
https://builds.apache.org/job/PreCommit-HDFS-Build/10149//console
This message is automatically generated.
> Support client-side back off when the datanodes are congested
> -------------------------------------------------------------
>
> Key: HDFS-8008
> URL: https://issues.apache.org/jira/browse/HDFS-8008
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: hdfs-client
> Reporter: Haohui Mai
> Assignee: Haohui Mai
> Attachments: HDFS-8008.000.patch, HDFS-8008.001.patch,
> HDFS-8008.002.patch, HDFS-8008.003.patch
>
>
> HDFS-7270 introduces the mechanism for DataNode to signal congestions.
> DFSClient should be able to recognize the signals and back off.
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