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https://issues.apache.org/jira/browse/TEZ-4213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17172470#comment-17172470
 ] 

TezQA commented on TEZ-4213:
----------------------------

| (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 
32s{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 2 new or modified test 
files. {color} |
|| || || || {color:brown} master Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
29s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  3m 
56s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m  
3s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
55s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m  
8s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue}  1m 
11s{color} | {color:blue} Used deprecated FindBugs config; considering 
switching to SpotBugs. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  2m  
8s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
10s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
37s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
36s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red}  0m 20s{color} 
| {color:red} tez-dag generated 3 new + 5 unchanged - 3 fixed = 8 total (was 8) 
{color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  
0m 17s{color} | {color:orange} tez-dag: The patch generated 5 new + 73 
unchanged - 2 fixed = 78 total (was 75) {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} javadoc {color} | {color:green}  0m 
43s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  1m  
5s{color} | {color:red} tez-dag generated 1 new + 0 unchanged - 0 fixed = 1 
total (was 0) {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  1m 
43s{color} | {color:green} tez-api in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red}  4m 12s{color} 
| {color:red} tez-dag in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
16s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 22m  0s{color} | 
{color:black} {color} |
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|| Reason || Tests ||
| FindBugs | module:tez-dag |
|  |  Inconsistent synchronization of 
org.apache.tez.dag.app.DAGAppMaster.rawExecutor; locked 66% of time  
Unsynchronized access at DAGAppMaster.java:66% of time  Unsynchronized access 
at DAGAppMaster.java:[line 1532] |
| Failed junit tests | tez.dag.app.dag.TestRootInputInitializerManager |
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|| Subsystem || Report/Notes ||
| Docker | ClientAPI=1.40 ServerAPI=1.40 base: 
https://builds.apache.org/job/PreCommit-TEZ-Build/515/artifact/out/Dockerfile |
| JIRA Issue | TEZ-4213 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/13009219/TEZ-4213.02.patch |
| Optional Tests | dupname asflicense javac javadoc unit spotbugs findbugs 
checkstyle compile |
| uname | Linux 35d0ab95e823 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 
11:12:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | personality/tez.sh |
| git revision | master / 3ce961bc7 |
| Default Java | Private Build-1.8.0_252-8u252-b09-1~18.04-b09 |
| javac | 
https://builds.apache.org/job/PreCommit-TEZ-Build/515/artifact/out/diff-compile-javac-tez-dag.txt
 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-TEZ-Build/515/artifact/out/diff-checkstyle-tez-dag.txt
 |
| findbugs | 
https://builds.apache.org/job/PreCommit-TEZ-Build/515/artifact/out/new-findbugs-tez-dag.html
 |
| unit | 
https://builds.apache.org/job/PreCommit-TEZ-Build/515/artifact/out/patch-unit-tez-dag.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-TEZ-Build/515/testReport/ |
| Max. process+thread count | 401 (vs. ulimit of 5500) |
| modules | C: tez-api tez-dag U: . |
| Console output | 
https://builds.apache.org/job/PreCommit-TEZ-Build/515/console |
| versions | git=2.17.1 maven=3.6.0 findbugs=3.0.1 |
| Powered by | Apache Yetus 0.12.0 https://yetus.apache.org |


This message was automatically generated.



> Bound appContext executor capacity using a configurable property
> ----------------------------------------------------------------
>
>                 Key: TEZ-4213
>                 URL: https://issues.apache.org/jira/browse/TEZ-4213
>             Project: Apache Tez
>          Issue Type: Bug
>            Reporter: Panagiotis Garefalakis
>            Assignee: Panagiotis Garefalakis
>            Priority: Major
>         Attachments: TEZ-4213.01.patch, TEZ-4213.02.patch
>
>          Time Spent: 1h 50m
>  Remaining Estimate: 0h
>
> After TEZ-4170 was merged, appContext executor pool is also used by the 
> RootInputInitializerManager to speed up SplitGeneration.
> However, this executor pool currently has not capacity limit 
> https://github.com/apache/tez/blob/master/tez-dag/src/main/java/org/apache/tez/dag/app/DAGAppMaster.java#L624
> The problem the occurs when generating splits for larger inputs (thousands or 
> more) is that it can could result to
> {color:red}java.lang.OutOfMemoryError{color}
> that is also reproducible with a test case.
> https://github.com/apache/tez/blob/master/tez-dag/src/main/java/org/apache/tez/dag/app/dag/RootInputInitializerManager.java#L130
> To avoid such errors, I propose to limit the capacity of this pool to a 
> configurable value that can be for example the number of physical cores by 
> default.



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