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https://issues.apache.org/jira/browse/HDFS-12935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16318271#comment-16318271
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genericqa commented on HDFS-12935:
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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} 20m 
13s{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:red}-1{color} | {color:red} mvninstall {color} | {color:red}  0m 
11s{color} | {color:red} root in trunk failed. {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red}  0m 
11s{color} | {color:red} hadoop-hdfs in trunk failed. {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
 9s{color} | {color:green} trunk passed {color} |
| {color:red}-1{color} | {color:red} mvnsite {color} | {color:red}  0m 
12s{color} | {color:red} hadoop-hdfs in trunk failed. {color} |
| {color:red}-1{color} | {color:red} shadedclient {color} | {color:red}  0m 
31s{color} | {color:red} branch has errors when building and testing our client 
artifacts. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  0m 
10s{color} | {color:red} hadoop-hdfs in trunk failed. {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red}  0m 
11s{color} | {color:red} hadoop-hdfs in trunk failed. {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:red}-1{color} | {color:red} mvninstall {color} | {color:red}  0m 
11s{color} | {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red}  0m 
10s{color} | {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red}  0m 10s{color} 
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
 8s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} mvnsite {color} | {color:red}  0m 
13s{color} | {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m 
 0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:red}-1{color} | {color:red} shadedclient {color} | {color:red}  0m 
10s{color} | {color:red} patch has errors when building and testing our client 
artifacts. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  0m 
10s{color} | {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red}  0m 
11s{color} | {color:red} hadoop-hdfs in the patch failed. {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}  0m 10s{color} 
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
19s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 24m  0s{color} | 
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:17213a0 |
| JIRA Issue | HDFS-12935 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12904522/HDFS-12935.004.patch |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  shadedclient  findbugs  checkstyle  |
| uname | Linux 1c7fe3bf7932 3.13.0-135-generic #184-Ubuntu SMP Wed Oct 18 
11:55:51 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 783a01e |
| maven | version: Apache Maven 3.3.9 
(bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-10T16:41:47+00:00) |
| Default Java | 1.7.0_151 |
| mvninstall | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22620/artifact/out/branch-mvninstall-root.txt
 |
| compile | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22620/artifact/out/branch-compile-hadoop-hdfs-project_hadoop-hdfs.txt
 |
| mvnsite | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22620/artifact/out/branch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt
 |
| findbugs | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22620/artifact/out/branch-findbugs-hadoop-hdfs-project_hadoop-hdfs.txt
 |
| javadoc | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22620/artifact/out/branch-javadoc-hadoop-hdfs-project_hadoop-hdfs.txt
 |
| mvninstall | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22620/artifact/out/patch-mvninstall-hadoop-hdfs-project_hadoop-hdfs.txt
 |
| compile | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22620/artifact/out/patch-compile-hadoop-hdfs-project_hadoop-hdfs.txt
 |
| javac | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22620/artifact/out/patch-compile-hadoop-hdfs-project_hadoop-hdfs.txt
 |
| mvnsite | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22620/artifact/out/patch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt
 |
| findbugs | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22620/artifact/out/patch-findbugs-hadoop-hdfs-project_hadoop-hdfs.txt
 |
| javadoc | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22620/artifact/out/patch-javadoc-hadoop-hdfs-project_hadoop-hdfs.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22620/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HDFS-Build/22620/testReport/ |
| Max. process+thread count | 33 (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/22620/console |
| Powered by | Apache Yetus 0.7.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> Get ambiguous result for DFSAdmin command in HA mode when only one namenode 
> is up
> ---------------------------------------------------------------------------------
>
>                 Key: HDFS-12935
>                 URL: https://issues.apache.org/jira/browse/HDFS-12935
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: tools
>    Affects Versions: 3.0.0-beta1, 3.0.0
>            Reporter: Jianfei Jiang
>            Assignee: Jianfei Jiang
>         Attachments: HDFS-12935.002.patch, HDFS-12935.003.patch, 
> HDFS-12935.004.patch, HDFS-12935.005.patch, HDFS_12935.001.patch
>
>
> In HA mode, if one namenode is down, most of functions can still work. When 
> considering the following two occasions:
>  (1)nn1 up and nn2 down
>  (2)nn1 down and nn2 up
> These two occasions should be equivalent. However, some of the DFSAdmin 
> commands will have ambiguous results. The commands can be send successfully 
> to the up namenode and are always functionally useful only when nn1 is up 
> regardless of exception (IOException when connecting to the down namenode 
> nn2). If only nn2 is up, the commands have no use at all and only exception 
> to connect nn1 can be found.
> See the following command "hdfs dfsadmin setBalancerBandwidth" which aim to 
> set balancer bandwidth value for datanodes as an example. It works and all 
> the datanodes can get the setting values only when nn1 is up. If only nn2 is 
> up, the command throws exception directly and no datanode get the bandwidth 
> setting. Approximately ten DFSAdmin commands use the similar logical process 
> and may be ambiguous.
> [root@jiangjianfei01 ~]# hdfs haadmin -getServiceState nn1
> active
> [root@jiangjianfei01 ~]# hdfs dfsadmin -setBalancerBandwidth 12345
> *Balancer bandwidth is set to 12345 for jiangjianfei01/172.17.0.14:9820*
> setBalancerBandwidth: Call From jiangjianfei01/172.17.0.14 to 
> jiangjianfei02:9820 failed on connection exception: 
> java.net.ConnectException: Connection refused; For more details see:  
> http://wiki.apache.org/hadoop/ConnectionRefused
> [root@jiangjianfei01 ~]# hdfs haadmin -getServiceState nn2
> active
> [root@jiangjianfei01 ~]# hdfs dfsadmin -setBalancerBandwidth 1234
> setBalancerBandwidth: Call From jiangjianfei01/172.17.0.14 to 
> jiangjianfei01:9820 failed on connection exception: 
> java.net.ConnectException: Connection refused; For more details see:  
> http://wiki.apache.org/hadoop/ConnectionRefused
> [root@jiangjianfei01 ~]# 



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