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https://issues.apache.org/jira/browse/YARN-10479?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17225736#comment-17225736
 ] 

Hadoop QA commented on YARN-10479:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime ||  Logfile || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  1m  
4s{color} |  | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} || ||
| {color:green}+1{color} | {color:green} dupname {color} | {color:green}  0m  
0s{color} |  | {color:green} No case conflicting files found. {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:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
28s{color} |  | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 26m 
22s{color} |  | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 13m 
18s{color} |  | {color:green} trunk passed with JDK 
Ubuntu-11.0.9+11-Ubuntu-0ubuntu1.18.04.1 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 11m 
46s{color} |  | {color:green} trunk passed with JDK Private 
Build-1.8.0_272-8u272-b10-0ubuntu1~18.04-b10 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
42s{color} |  | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  2m 
12s{color} |  | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
23m 57s{color} |  | {color:green} branch has no errors when building and 
testing our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 
42s{color} |  | {color:green} trunk passed with JDK 
Ubuntu-11.0.9+11-Ubuntu-0ubuntu1.18.04.1 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 
51s{color} |  | {color:green} trunk passed with JDK Private 
Build-1.8.0_272-8u272-b10-0ubuntu1~18.04-b10 {color} |
| {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue}  1m 
50s{color} |  | {color:blue} Used deprecated FindBugs config; considering 
switching to SpotBugs. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  4m 
16s{color} |  | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} || ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
26s{color} |  | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 
21s{color} |  | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 12m 
52s{color} |  | {color:green} the patch passed with JDK 
Ubuntu-11.0.9+11-Ubuntu-0ubuntu1.18.04.1 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 12m 
52s{color} |  | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 10m 
54s{color} |  | {color:green} the patch passed with JDK Private 
Build-1.8.0_272-8u272-b10-0ubuntu1~18.04-b10 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 10m 
54s{color} |  | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} blanks {color} | {color:green}  0m  
0s{color} |  | {color:green} The patch has no blanks issues. {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  
1m 38s{color} | 
[/results-checkstyle-hadoop-yarn-project_hadoop-yarn.txt|https://ci-hadoop.apache.org/job/PreCommit-YARN-Build/282/artifact/out/results-checkstyle-hadoop-yarn-project_hadoop-yarn.txt]
 | {color:orange} hadoop-yarn-project/hadoop-yarn: The patch generated 3 new + 
98 unchanged - 1 fixed = 101 total (was 99) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  2m  
4s{color} |  | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} shadedclient {color} | {color:red}  9m 
56s{color} | 
[/patch-shadedclient.txt|https://ci-hadoop.apache.org/job/PreCommit-YARN-Build/282/artifact/out/patch-shadedclient.txt]
 | {color:red} patch has errors when building and testing our client artifacts. 
{color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red}  0m 
30s{color} | 
[/patch-javadoc-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-nodemanager-jdkUbuntu-11.0.9+11-Ubuntu-0ubuntu1.18.04.1.txt|https://ci-hadoop.apache.org/job/PreCommit-YARN-Build/282/artifact/out/patch-javadoc-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-nodemanager-jdkUbuntu-11.0.9+11-Ubuntu-0ubuntu1.18.04.1.txt]
 | {color:red} hadoop-yarn-server-nodemanager in the patch failed with JDK 
Ubuntu-11.0.9+11-Ubuntu-0ubuntu1.18.04.1. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 
49s{color} |  | {color:green} the patch passed with JDK Private 
Build-1.8.0_272-8u272-b10-0ubuntu1~18.04-b10 {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  4m 
55s{color} |  | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} || ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  4m 
46s{color} |  | {color:green} hadoop-yarn-common in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 31m 16s{color} 
| 
[/patch-unit-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-nodemanager.txt|https://ci-hadoop.apache.org/job/PreCommit-YARN-Build/282/artifact/out/patch-unit-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-nodemanager.txt]
 | {color:red} hadoop-yarn-server-nodemanager in the patch failed. {color} |
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red}  1m 
14s{color} | 
[/results-asflicense.txt|https://ci-hadoop.apache.org/job/PreCommit-YARN-Build/282/artifact/out/results-asflicense.txt]
 | {color:red} The patch generated 18 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}167m 44s{color} | 
 | {color:black}{color} |
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|| Reason || Tests ||
| Failed junit tests | 
hadoop.yarn.server.nodemanager.containermanager.monitor.TestContainersMonitor |
|   | 
hadoop.yarn.server.nodemanager.containermanager.launcher.TestContainerLaunch |
|   | hadoop.yarn.server.nodemanager.TestNodeManagerResync |
|   | hadoop.yarn.server.nodemanager.containermanager.TestContainerManager |
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|| Subsystem || Report/Notes ||
| Docker | ClientAPI=1.40 ServerAPI=1.40 base: 
https://ci-hadoop.apache.org/job/PreCommit-YARN-Build/282/artifact/out/Dockerfile
 |
| JIRA Issue | YARN-10479 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/13014665/YARN-10479.002.patch |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite 
unit shadedclient findbugs checkstyle |
| uname | Linux 75ad87f8df57 4.15.0-112-generic #113-Ubuntu SMP Thu Jul 9 
23:41:39 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | personality/hadoop.sh |
| git revision | trunk / 7f5caca04cb8e5dab8410ef64daa0fe799e389fd |
| Default Java | Private Build-1.8.0_272-8u272-b10-0ubuntu1~18.04-b10 |
| Multi-JDK versions | 
/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.9+11-Ubuntu-0ubuntu1.18.04.1 
/usr/lib/jvm/java-8-openjdk-amd64:Private 
Build-1.8.0_272-8u272-b10-0ubuntu1~18.04-b10 |
|  Test Results | 
https://ci-hadoop.apache.org/job/PreCommit-YARN-Build/282/testReport/ |
| Max. process+thread count | 307 (vs. ulimit of 5500) |
| modules | C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager
 U: hadoop-yarn-project/hadoop-yarn |
| Console output | 
https://ci-hadoop.apache.org/job/PreCommit-YARN-Build/282/console |
| versions | git=2.17.1 maven=3.6.0 findbugs=4.1.3 |
| Powered by | Apache Yetus 0.14.0-SNAPSHOT https://yetus.apache.org |


This message was automatically generated.



> RMProxy should retry on SocketTimeout Exceptions
> ------------------------------------------------
>
>                 Key: YARN-10479
>                 URL: https://issues.apache.org/jira/browse/YARN-10479
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: yarn
>    Affects Versions: 2.10.1, 3.4.1
>            Reporter: Jim Brennan
>            Assignee: Jim Brennan
>            Priority: Major
>         Attachments: YARN-10479.001.patch, YARN-10479.002.patch
>
>
> During an incident involving a DNS outage, a large number of nodemanagers 
> failed to come back into service because they hit a socket timeout when 
> trying to re-register with the RM.
> SocketTimeoutException is not currently one of the exceptions that the 
> RMProxy will retry.  Based on this incident, it seems like it should be.  We 
> made this change internally about a year ago and it has been running in 
> production since.



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