[ 
https://issues.apache.org/jira/browse/HADOOP-14369?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15991972#comment-15991972
 ] 

Hadoop QA commented on HADOOP-14369:
------------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 13m 
39s{color} | {color:blue} Docker mode activated. {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:red}-1{color} | {color:red} test4tests {color} | {color:red}  0m  
0s{color} | {color:red} The patch doesn't appear to include any new or modified 
tests. Please justify why no new tests are needed for this patch. Also please 
list what manual steps were performed to verify this patch. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 14m 
51s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 20m  
4s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
40s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m 
10s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
21s{color} | {color:green} trunk passed {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  1m 
30s{color} | {color:red} hadoop-common-project/hadoop-common in trunk has 19 
extant Findbugs warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
55s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
48s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 19m 
26s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 19m 
26s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
41s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m 
15s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
23s{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} findbugs {color} | {color:green}  1m 
53s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
51s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red}  9m  1s{color} 
| {color:red} hadoop-common in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
40s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 90m 20s{color} | 
{color:black} {color} |
\\
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|| Reason || Tests ||
| Failed junit tests | hadoop.security.TestRaceWhenRelogin |
\\
\\
|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:14b5c93 |
| JIRA Issue | HADOOP-14369 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12865839/HADOOP-14369-000.patch
 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  findbugs  checkstyle  |
| uname | Linux a16f205ba0f6 3.13.0-116-generic #163-Ubuntu SMP Fri Mar 31 
14:13:22 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh 
|
| git revision | trunk / 1058b40 |
| Default Java | 1.8.0_121 |
| findbugs | v3.1.0-RC1 |
| findbugs | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/12219/artifact/patchprocess/branch-findbugs-hadoop-common-project_hadoop-common-warnings.html
 |
| unit | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/12219/artifact/patchprocess/patch-unit-hadoop-common-project_hadoop-common.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/12219/testReport/ |
| modules | C: hadoop-common-project/hadoop-common U: 
hadoop-common-project/hadoop-common |
| Console output | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/12219/console |
| Powered by | Apache Yetus 0.5.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> NetworkTopology calls expensive toString() when debugging
> ---------------------------------------------------------
>
>                 Key: HADOOP-14369
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14369
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Inigo Goiri
>            Assignee: Inigo Goiri
>         Attachments: HADOOP-14369-000.patch
>
>
> When {{NetworkTopology}} calls {{add()}} or {{remove()}}, it calls 
> {{toString()}} for {{LOG.debug()}} which is pretty expensive.



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