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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-7053) Timed out tasks can fail to produce thread dump
Date Thu, 15 Feb 2018 23:52:00 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-7053?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16366430#comment-16366430
] 

Hadoop QA commented on MAPREDUCE-7053:
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| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 20m 31s{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 2 new or modified test files. {color} |
|| || || || {color:brown} branch-2 Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 13m 13s{color}
| {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 29s{color} |
{color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 20s{color}
| {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 37s{color} |
{color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 51s{color} |
{color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 23s{color} |
{color:green} branch-2 passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 30s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 26s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 26s{color} | {color:green}
the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  0m 14s{color}
| {color:orange} hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app:
The patch generated 1 new + 26 unchanged - 1 fixed = 27 total (was 27) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 30s{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}  0m 58s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 18s{color} |
{color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  8m 58s{color} | {color:green}
hadoop-mapreduce-client-app in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 24s{color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 49m 49s{color} | {color:black}
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:17213a0 |
| JIRA Issue | MAPREDUCE-7053 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12910809/MAPREDUCE-7053-branch-2.001.patch
|
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  shadedclient
 findbugs  checkstyle  |
| uname | Linux 8b2acb9175d7 4.4.0-43-generic #63-Ubuntu SMP Wed Oct 12 13:48:03 UTC 2016
x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | branch-2 / fe044e6 |
| maven | version: Apache Maven 3.3.9 (bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-10T16:41:47+00:00)
|
| Default Java | 1.7.0_151 |
| findbugs | v3.0.0 |
| checkstyle | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7344/artifact/out/diff-checkstyle-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-app.txt
|
|  Test Results | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7344/testReport/
|
| Max. process+thread count | 481 (vs. ulimit of 5500) |
| modules | C: hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app
U: hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app |
| Console output | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7344/console |
| Powered by | Apache Yetus 0.8.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> Timed out tasks can fail to produce thread dump
> -----------------------------------------------
>
>                 Key: MAPREDUCE-7053
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-7053
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 3.1.0, 3.0.1, 2.10.0, 2.9.1, 2.8.4
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>            Priority: Major
>         Attachments: MAPREDUCE-7053-branch-2.001.patch, MAPREDUCE-7053.001.patch
>
>
> TestMRJobs#testThreadDumpOnTaskTimeout has been failing sporadically recently.  When
the AM times out a task it immediately removes it from the list of known tasks and then connects
to the NM to request a thread dump followed by a kill.  If the task heartbeats in after the
task has been removed from the list of known tasks but before the thread dump signal arrives
then the task can exit with a "org.apache.hadoop.mapred.Task: Parent died." message and no
thread dump.



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