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https://issues.apache.org/jira/browse/HDFS-12859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16266917#comment-16266917
 ] 

genericqa commented on HDFS-12859:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 
41s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} @author {color} | {color:green}  0m  
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green}  0m 
 0s{color} | {color:green} The patch appears to include 1 new or modified test 
files. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 15m 
42s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
51s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
38s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
58s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
10m 11s{color} | {color:green} branch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m 
50s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
47s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
54s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
50s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
50s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  
0m 37s{color} | {color:orange} hadoop-hdfs-project/hadoop-hdfs: The patch 
generated 14 new + 656 unchanged - 0 fixed = 670 total (was 656) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
57s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red}  0m  
0s{color} | {color:red} The patch has 4 line(s) that end in whitespace. Use git 
apply --whitespace=fix <<patch_file>>. Refer https://git-scm.com/docs/git-apply 
{color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}  
9m 34s{color} | {color:green} patch has no errors when building and testing our 
client artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  2m  
0s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
47s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}119m  9s{color} 
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
17s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}166m 28s{color} | 
{color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure000 |
|   | hadoop.fs.TestUnbuffer |
|   | hadoop.hdfs.web.TestWebHdfsTimeouts |
|   | hadoop.hdfs.TestLeaseRecoveryStriped |
|   | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure |
|   | hadoop.hdfs.server.datanode.TestDataNodeErasureCodingMetrics |
|   | hadoop.hdfs.server.balancer.TestBalancerWithEncryptedTransfer |
|   | hadoop.hdfs.server.balancer.TestBalancerRPCDelay |
|   | hadoop.cli.TestHDFSCLI |
|   | hadoop.hdfs.TestRollingUpgrade |
|   | hadoop.hdfs.TestBalancerBandwidth |
|   | hadoop.hdfs.web.TestWebHDFSForHA |
|   | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure050 |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:5b98639 |
| JIRA Issue | HDFS-12859 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12899383/HDFS-12859.patch |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  shadedclient  findbugs  checkstyle  |
| uname | Linux 048b99c8f216 4.4.0-64-generic #85-Ubuntu SMP Mon Feb 20 
11:50:30 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 2bde3ae |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_151 |
| findbugs | v3.1.0-RC1 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22192/artifact/out/diff-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt
 |
| whitespace | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22192/artifact/out/whitespace-eol.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22192/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22192/testReport/ |
| Max. process+thread count | 3897 (vs. ulimit of 5000) |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U: 
hadoop-hdfs-project/hadoop-hdfs |
| Console output | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22192/console |
| Powered by | Apache Yetus 0.7.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> Admin command resetBalancerBandwidth
> ------------------------------------
>
>                 Key: HDFS-12859
>                 URL: https://issues.apache.org/jira/browse/HDFS-12859
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: balancer & mover
>    Affects Versions: 3.0.0-beta1
>            Reporter: Jianfei Jiang
>             Fix For: 3.1.0
>
>         Attachments: HDFS-12859.patch
>
>
> We can already set balancer bandwidth dynamically using command 
> setBalancerBandwidth. The setting value is not persistent and not stored in 
> configuration file. The different datanodes could their different default or 
> former setting in configuration.
> When we suggested to develop a schedule balancer task which runs at midnight 
> everyday. We set a larger bandwidth for it and hope to reset the value after 
> finishing. However, we found it difficult to reset the different setting for 
> different datanodes as the setBalancerBandwidth command can only set the same 
> value to all datanodes. If we want to use unique setting for every datanode, 
> we have to reset the datanodes.
> So it would be useful to have a command to synchronize the setting with the 
> configuration file. 



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