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https://issues.apache.org/jira/browse/YARN-9129?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16723525#comment-16723525
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Hadoop QA commented on YARN-9129:
---------------------------------

| (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 
21s{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: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:brown} trunk Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
15s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 20m 
31s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  8m 
57s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
29s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m 
24s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
15m  9s{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 
52s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
58s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
15s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 
20s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  8m 
25s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green}  8m 
25s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  8m 
25s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  
1m 26s{color} | {color:orange} hadoop-yarn-project/hadoop-yarn: The patch 
generated 2 new + 19 unchanged - 0 fixed = 21 total (was 19) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m 
20s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m 
 1s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
13m 31s{color} | {color:green} patch has no errors when building and testing 
our client artifacts. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  0m 
57s{color} | {color:red} hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client 
generated 1 new + 0 unchanged - 0 fixed = 1 total (was 0) {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
57s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 19m 
18s{color} | {color:green} hadoop-yarn-server-nodemanager in the patch passed. 
{color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 26m  
2s{color} | {color:green} hadoop-yarn-client in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
41s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}125m 34s{color} | 
{color:black} {color} |
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|| Reason || Tests ||
| FindBugs | module:hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client |
|  |  Dead store to session in 
org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.shellToContainer(ContainerId,
 ShellContainerCommand)  At 
YarnClientImpl.java:org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.shellToContainer(ContainerId,
 ShellContainerCommand)  At YarnClientImpl.java:[line 1124] |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:8f97d6f |
| JIRA Issue | YARN-9129 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12952087/YARN-9129.001.patch |
| Optional Tests |  dupname  asflicense  compile  javac  javadoc  mvninstall  
mvnsite  unit  shadedclient  findbugs  checkstyle  cc  |
| uname | Linux 1c47813db5ea 4.4.0-138-generic #164~14.04.1-Ubuntu SMP Fri Oct 
5 08:56:16 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 5426653 |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_181 |
| findbugs | v3.1.0-RC1 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-YARN-Build/22905/artifact/out/diff-checkstyle-hadoop-yarn-project_hadoop-yarn.txt
 |
| findbugs | 
https://builds.apache.org/job/PreCommit-YARN-Build/22905/artifact/out/new-findbugs-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-client.html
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-YARN-Build/22905/testReport/ |
| Max. process+thread count | 672 (vs. ulimit of 10000) |
| modules | C: 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager
 hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client U: 
hadoop-yarn-project/hadoop-yarn |
| Console output | 
https://builds.apache.org/job/PreCommit-YARN-Build/22905/console |
| Powered by | Apache Yetus 0.8.0   http://yetus.apache.org |


This message was automatically generated.



> Ensure flush after printing to stderr plus additional cleanup
> -------------------------------------------------------------
>
>                 Key: YARN-9129
>                 URL: https://issues.apache.org/jira/browse/YARN-9129
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Billie Rinaldi
>            Assignee: Eric Yang
>            Priority: Major
>             Fix For: 3.3.0
>
>         Attachments: YARN-9129.001.patch
>
>
> Following up on findings in YARN-8962, I noticed the following issues in 
> container-executor and main.c:
> - There seem to be some vars that are not cleaned up in container_executor:
> In run_docker else: free docker_binary
> In exec_container:
>   before return INVALID_COMMAND_FILE: free docker_binary
>   3x return DOCKER_EXEC_FAILED: set exit code and goto cleanup instead
>   cleanup needed before exit calls?
> - In YARN-8777 we added several fprintf(stderr calls, but the convention in 
> container-executor.c appears to be fprintf(ERRORFILE followed by 
> fflush(ERRORFILE).
> - There are leaks in TestDockerUtil_test_add_ports_mapping_to_command_Test.
> - There are additional places where flush is not performed after writing to 
> stderr, including main.c display_feature_disabled_message. This can result in 
> the client not receiving the error message if the connection is closed too 
> quickly.



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