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https://issues.apache.org/jira/browse/HDFS-11035?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16170931#comment-16170931
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Hadoop QA commented on HDFS-11035:
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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 
14s{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:brown} trunk Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
17s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:red}-1{color} | {color:red} mvninstall {color} | {color:red} 13m 
55s{color} | {color:red} root in trunk failed. {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m 
16s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
36s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m  
1s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m 
 0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} xml {color} | {color:green}  0m  
1s{color} | {color:green} The patch has no ill-formed XML file. {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
14s{color} | {color:green} The patch does not generate ASF License warnings. 
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| {color:black}{color} | {color:black} {color} | {color:black} 17m 52s{color} | 
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:71bbb86 |
| JIRA Issue | HDFS-11035 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12887772/HDFS-11035-2.patch |
| Optional Tests |  asflicense  mvnsite  xml  |
| uname | Linux e28a02ac314a 3.13.0-123-generic #172-Ubuntu SMP Mon Jun 26 
18:04:35 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh 
|
| git revision | trunk / 56ef527 |
| mvninstall | 
https://builds.apache.org/job/PreCommit-HDFS-Build/21204/artifact/patchprocess/branch-mvninstall-root.txt
 |
| modules | C: hadoop-project hadoop-hdfs-project/hadoop-hdfs U: . |
| Console output | 
https://builds.apache.org/job/PreCommit-HDFS-Build/21204/console |
| Powered by | Apache Yetus 0.6.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> Better documentation for maintenace mode and upgrade domain
> -----------------------------------------------------------
>
>                 Key: HDFS-11035
>                 URL: https://issues.apache.org/jira/browse/HDFS-11035
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode, documentation
>    Affects Versions: 2.9.0
>            Reporter: Wei-Chiu Chuang
>            Assignee: Ming Ma
>         Attachments: HDFS-11035-2.patch, HDFS-11035.patch
>
>
> HDFS-7541 added upgrade domain and HDFS-7877 added maintenance mode. Existing 
> documentation about these two features are scarce and the implementation have 
> evolved from the original design doc. Looking at code and Javadoc and I still 
> don't quite get how I can get datanodes into maintenance mode/ set up a 
> upgrade domain.
> File this jira to propose that we write an up-to-date description of these 
> two features.



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