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https://issues.apache.org/jira/browse/HDFS-13785?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16572768#comment-16572768
 ] 

genericqa commented on HDFS-13785:
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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 
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:green}+1{color} | {color:green} mvninstall {color} | {color:green} 28m 
26s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
56s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
13s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m  
7s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
12m  3s{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 
51s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
48s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 
 1s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
51s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
51s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
 9s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
57s{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:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
11m 58s{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}  1m 
58s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
43s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 77m  9s{color} 
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red}  0m 
27s{color} | {color:red} The patch generated 1 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}141m  6s{color} | 
{color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hdfs.server.datanode.TestDataNodeMetrics |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:ba1ab08 |
| JIRA Issue | HDFS-13785 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12934756/HDFS-13785-03.patch |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  shadedclient  findbugs  checkstyle  xml  |
| uname | Linux ccc0853dcc95 3.13.0-139-generic #188-Ubuntu SMP Tue Jan 9 
14:43:09 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 2b0f977 |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_171 |
| findbugs | v3.1.0-RC1 |
| unit | 
https://builds.apache.org/job/PreCommit-HDFS-Build/24724/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HDFS-Build/24724/testReport/ |
| asflicense | 
https://builds.apache.org/job/PreCommit-HDFS-Build/24724/artifact/out/patch-asflicense-problems.txt
 |
| Max. process+thread count | 4033 (vs. ulimit of 10000) |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U: 
hadoop-hdfs-project/hadoop-hdfs |
| Console output | 
https://builds.apache.org/job/PreCommit-HDFS-Build/24724/console |
| Powered by | Apache Yetus 0.8.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> EC: "removePolicy" is not working for built-in/system Erasure Code policies
> ---------------------------------------------------------------------------
>
>                 Key: HDFS-13785
>                 URL: https://issues.apache.org/jira/browse/HDFS-13785
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: documentation, erasure-coding
>    Affects Versions: 3.0.0
>         Environment: 3 Node SUSE Linux Cluster
>            Reporter: Souryakanta Dwivedy
>            Assignee: Ayush Saxena
>            Priority: Minor
>         Attachments: HDFS-13785-01.patch, HDFS-13785-02.patch, 
> HDFS-13785-03.patch
>
>
> EC: "removePolicy" is not working for built-in/system Erasure Code policies
> - Check the existing built-in EC policies with command "hdfs ec -listPolicies"
> - try to remove any of the EC policies,it will throw error message as 
> "RemoteException: System erasure coding policy RS-3-2-1024k cannot be removed"
> - add user-defined EC policies 
> - Try to remove any user-defined policy,it will be removed successfully
> - But in help option it is specified as :
>  vm1:/opt/client/install/hadoop/namenode/bin> ./hdfs ec -help removePolicy
> [-removePolicy -policy <policy>]
> Remove an erasure coding policy.
> <policy> The name of the erasure coding policy
> vm1:/opt/client/install/hadoop/namenode/bin>
> Actual result :-
>  hdfs ec -removePolicy not working for built-in/system EC policies ,where as 
> usage description 
>  provided as "Remove an erasure coding policy".throwing exception as : 
> "RemoteException: System erasure coding policy RS-3-2-1024k cannot be removed"
> Expected output : Either EC "removePolicy" option should be applicable for 
> all type of EC policies 
>  Or it has to be specified in usage that EC "removePolicy" will be applicable 
> to remove
>  only user-defined EC policies, not applicable for system EC coding policies.



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