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https://issues.apache.org/jira/browse/YARN-6959?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16116372#comment-16116372
 ] 

Hadoop QA commented on YARN-6959:
---------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 18m 
43s{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:red}-1{color} | {color:red} mvninstall {color} | {color:red}  0m 
12s{color} | {color:red} root in trunk failed. {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
47s{color} | {color:green} trunk passed with JDK v1.8.0_144 {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red}  0m 
11s{color} | {color:red} hadoop-yarn-server-resourcemanager in trunk failed 
with JDK v1.7.0_131. {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
11s{color} | {color:green} trunk passed {color} |
| {color:red}-1{color} | {color:red} mvnsite {color} | {color:red}  0m 
13s{color} | {color:red} hadoop-yarn-server-resourcemanager in trunk failed. 
{color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  0m 
11s{color} | {color:red} hadoop-yarn-server-resourcemanager in trunk failed. 
{color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
25s{color} | {color:green} trunk passed with JDK v1.8.0_144 {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red}  0m 
11s{color} | {color:red} hadoop-yarn-server-resourcemanager in trunk failed 
with JDK v1.7.0_131. {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:red}-1{color} | {color:red} mvninstall {color} | {color:red}  0m 
10s{color} | {color:red} hadoop-yarn-server-resourcemanager in the patch 
failed. {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
42s{color} | {color:green} the patch passed with JDK v1.8.0_144 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
42s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red}  0m 
10s{color} | {color:red} hadoop-yarn-server-resourcemanager in the patch failed 
with JDK v1.7.0_131. {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red}  0m 10s{color} 
| {color:red} hadoop-yarn-server-resourcemanager in the patch failed with JDK 
v1.7.0_131. {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
10s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} mvnsite {color} | {color:red}  0m 
12s{color} | {color:red} hadoop-yarn-server-resourcemanager in the patch 
failed. {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m 
 0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  0m  
9s{color} | {color:red} hadoop-yarn-server-resourcemanager in the patch failed. 
{color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
23s{color} | {color:green} the patch passed with JDK v1.8.0_144 {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red}  0m 
11s{color} | {color:red} hadoop-yarn-server-resourcemanager in the patch failed 
with JDK v1.7.0_131. {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}  0m 11s{color} 
| {color:red} hadoop-yarn-server-resourcemanager in the patch failed with JDK 
v1.7.0_131. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
23s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 74m 35s{color} | 
{color:black} {color} |
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|| Reason || Tests ||
| JDK v1.8.0_144 Failed junit tests | 
hadoop.yarn.server.resourcemanager.scheduler.fair.TestFairScheduler |
| JDK v1.8.0_144 Timed out junit tests | 
org.apache.hadoop.yarn.server.resourcemanager.TestRMStoreCommands |
|   | org.apache.hadoop.yarn.server.resourcemanager.recovery.TestZKRMStateStore 
|
|   | 
org.apache.hadoop.yarn.server.resourcemanager.TestSubmitApplicationWithRMHA |
|   | 
org.apache.hadoop.yarn.server.resourcemanager.TestReservationSystemWithRMHA |
|   | org.apache.hadoop.yarn.server.resourcemanager.TestKillApplicationWithRMHA 
|
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:67e87c9 |
| JIRA Issue | YARN-6959 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12880611/YARN-6959.001.patch |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  findbugs  checkstyle  |
| uname | Linux 30c57d319610 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 / 46b7054 |
| Default Java | 1.7.0_131 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-oracle:1.8.0_144 
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_131 |
| mvninstall | 
https://builds.apache.org/job/PreCommit-YARN-Build/16733/artifact/patchprocess/branch-mvninstall-root.txt
 |
| compile | 
https://builds.apache.org/job/PreCommit-YARN-Build/16733/artifact/patchprocess/branch-compile-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager-jdk1.7.0_131.txt
 |
| mvnsite | 
https://builds.apache.org/job/PreCommit-YARN-Build/16733/artifact/patchprocess/branch-mvnsite-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt
 |
| findbugs | 
https://builds.apache.org/job/PreCommit-YARN-Build/16733/artifact/patchprocess/branch-findbugs-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt
 |
| javadoc | 
https://builds.apache.org/job/PreCommit-YARN-Build/16733/artifact/patchprocess/branch-javadoc-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager-jdk1.7.0_131.txt
 |
| mvninstall | 
https://builds.apache.org/job/PreCommit-YARN-Build/16733/artifact/patchprocess/patch-mvninstall-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt
 |
| compile | 
https://builds.apache.org/job/PreCommit-YARN-Build/16733/artifact/patchprocess/patch-compile-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager-jdk1.7.0_131.txt
 |
| javac | 
https://builds.apache.org/job/PreCommit-YARN-Build/16733/artifact/patchprocess/patch-compile-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager-jdk1.7.0_131.txt
 |
| mvnsite | 
https://builds.apache.org/job/PreCommit-YARN-Build/16733/artifact/patchprocess/patch-mvnsite-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt
 |
| findbugs | 
https://builds.apache.org/job/PreCommit-YARN-Build/16733/artifact/patchprocess/patch-findbugs-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt
 |
| javadoc | 
https://builds.apache.org/job/PreCommit-YARN-Build/16733/artifact/patchprocess/patch-javadoc-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager-jdk1.7.0_131.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-YARN-Build/16733/artifact/patchprocess/patch-unit-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager-jdk1.7.0_131.txt
 |
| JDK v1.7.0_131  Test Results | 
https://builds.apache.org/job/PreCommit-YARN-Build/16733/testReport/ |
| modules | C: 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager
 U: 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager
 |
| Console output | 
https://builds.apache.org/job/PreCommit-YARN-Build/16733/console |
| Powered by | Apache Yetus 0.6.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> RM may allocate wrong AM Container for new attempt
> --------------------------------------------------
>
>                 Key: YARN-6959
>                 URL: https://issues.apache.org/jira/browse/YARN-6959
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: scheduler
>    Affects Versions: 2.7.1
>            Reporter: Yuqi Wang
>            Assignee: Yuqi Wang
>              Labels: patch
>             Fix For: 2.7.1, 3.0.0-alpha4
>
>         Attachments: YARN-6959.001.patch, YARN-6959-branch-2.7.001.patch
>
>
> *Issue Summary:*
> Previous attempt ResourceRequest may be recorded into current attempt 
> ResourceRequests. These mis-recorded ResourceRequests may confuse AM 
> Container Request and Allocation for current attempt.
> *Issue Pipeline:*
> {code:java}
> // Executing precondition check for the incoming attempt id.
> ApplicationMasterService.allocate() ->
> scheduler.allocate(attemptId, ask, ...) ->
> // Previous precondition check for the attempt id may be outdated here, 
> // i.e. the currentAttempt may not be the corresponding attempt of the 
> attemptId.
> // Such as the attempt id is corresponding to the previous attempt.
> currentAttempt = scheduler.getApplicationAttempt(attemptId) ->
> // Previous attempt ResourceRequest may be recorded into current attempt 
> ResourceRequests
> currentAttempt.updateResourceRequests(ask) ->
> // RM may allocate wrong AM Container for the current attempt, because its 
> ResourceRequests
> // may come from previous attempt which can be any ResourceRequests previous 
> AM asked
> // and there is not matching logic for the original AM Container 
> ResourceRequest and 
> // the returned amContainerAllocation below.
> AMContainerAllocatedTransition.transition(...) ->
> amContainerAllocation = scheduler.allocate(currentAttemptId, ...)
> {code}
> *Patch Correctness:*
> Because after this Patch, RM will definitely record ResourceRequests from 
> different attempt into different objects of 
> SchedulerApplicationAttempt.AppSchedulingInfo.
> So, even if RM still record ResourceRequests from old attempt at any time, 
> these ResourceRequests will be recorded in old AppSchedulingInfo object which 
> will not impact current attempt's resource requests and allocation.
> *Concerns:*
> The getApplicationAttempt function in AbstractYarnScheduler is so confusing, 
> we should better rename it to getCurrentApplicationAttempt. And reconsider 
> whether there are any other bugs related to getApplicationAttempt.



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