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https://issues.apache.org/jira/browse/MAPREDUCE-6689?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15274262#comment-15274262
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Hadoop QA commented on MAPREDUCE-6689:
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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: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:green}+1{color} | {color:green} mvninstall {color} | {color:green} 7m
24s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 22s
{color} | {color:green} trunk passed with JDK v1.8.0_91 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 25s
{color} | {color:green} trunk passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
17s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 27s
{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
13s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 0m
42s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 15s
{color} | {color:green} trunk passed with JDK v1.8.0_91 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 18s
{color} | {color:green} trunk passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m
23s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 19s
{color} | {color:green} the patch passed with JDK v1.8.0_91 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 19s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 22s
{color} | {color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 22s
{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 14s
{color} | {color:red}
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app:
patch generated 1 new + 111 unchanged - 0 fixed = 112 total (was 111) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 26s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
11s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
0s {color} | {color:green} 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 13s
{color} | {color:green} the patch passed with JDK v1.8.0_91 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 15s
{color} | {color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 8m 32s
{color} | {color:green} hadoop-mapreduce-client-app in the patch passed with
JDK v1.8.0_91. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 9m 16s
{color} | {color:green} hadoop-mapreduce-client-app in the patch passed with
JDK v1.7.0_95. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
20s {color} | {color:green} Patch does not generate ASF License warnings.
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| {color:black}{color} | {color:black} {color} | {color:black} 33m 4s {color} |
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:cf2ee45 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12802512/MAPREDUCE-6689.1.patch
|
| JIRA Issue | MAPREDUCE-6689 |
| Optional Tests | asflicense compile javac javadoc mvninstall mvnsite
unit findbugs checkstyle |
| uname | Linux 009df3d66296 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed
Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh
|
| git revision | trunk / 2835f14 |
| Default Java | 1.7.0_95 |
| Multi-JDK versions | /usr/lib/jvm/java-8-oracle:1.8.0_91
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_95 |
| findbugs | v3.0.0 |
| checkstyle |
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6484/artifact/patchprocess/diff-checkstyle-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-app.txt
|
| JDK v1.7.0_95 Test Results |
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6484/testReport/ |
| 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/6484/console |
| Powered by | Apache Yetus 0.2.0 http://yetus.apache.org |
This message was automatically generated.
> MapReduce job can infinitely increase number of reducer resource requests
> -------------------------------------------------------------------------
>
> Key: MAPREDUCE-6689
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6689
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Wangda Tan
> Assignee: Wangda Tan
> Priority: Blocker
> Attachments: MAPREDUCE-6689.1.patch
>
>
> We have seen this issue from one of our clusters: when running terasort
> map-reduce job, some mappers failed after reducer started, and then MR AM
> tries to preempt reducers to schedule these failed mappers.
> After that, MR AM enters an infinite loop, for every
> RMContainerAllocator#heartbeat run, it:
> - In {{preemptReducesIfNeeded}}, it cancels all scheduled reducer requests.
> (total scheduled reducers = 1024)
> - Then, in {{scheduleReduces}}, it ramps up all reducers (total = 1024).
> As a result, we can see total #requested-containers increased 1024 for every
> MRAM-RM heartbeat (1 sec per heartbeat). The AM is hanging for 18+ hours, so
> we get 18 * 3600 * 1024 ~ 66M+ requested containers in RM side.
> And this bug also triggered YARN-4844, which makes RM stop scheduling
> anything.
> Thanks to [~sidharta-s] for helping with analysis.
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