[ 
https://issues.apache.org/jira/browse/TEZ-4155?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17093707#comment-17093707
 ] 

TezQA commented on TEZ-4155:
----------------------------

| (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 
31s{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: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} master Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 10m 
18s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
26s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
15s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
42s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue}  1m 
30s{color} | {color:blue} Used deprecated FindBugs config; considering 
switching to SpotBugs. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m 
28s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
18s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
18s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
18s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  
0m 13s{color} | {color:orange} tez-api: The patch generated 1 new + 6 unchanged 
- 0 fixed = 7 total (was 6) {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 
25s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m  
3s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  1m 
51s{color} | {color:green} tez-api in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
17s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 19m 51s{color} | 
{color:black} {color} |
\\
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|| Subsystem || Report/Notes ||
| Docker | Client=19.03.8 Server=19.03.8 base: 
https://builds.apache.org/job/PreCommit-TEZ-Build/375/artifact/out/Dockerfile |
| JIRA Issue | TEZ-4155 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/13001283/TEZ-4155.02.patch |
| Optional Tests | dupname asflicense javac javadoc unit spotbugs findbugs 
checkstyle compile |
| uname | Linux fae4b4cfb9a2 4.15.0-74-generic #84-Ubuntu SMP Thu Dec 19 
08:06:28 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | personality/tez.sh |
| git revision | master / 3f8e753 |
| Default Java | 1.8.0_252 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-TEZ-Build/375/artifact/out/diff-checkstyle-tez-api.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-TEZ-Build/375/testReport/ |
| Max. process+thread count | 209 (vs. ulimit of 5500) |
| modules | C: tez-api U: tez-api |
| Console output | 
https://builds.apache.org/job/PreCommit-TEZ-Build/375/console |
| versions | git=2.7.4 maven=3.3.9 findbugs=3.0.1 |
| Powered by | Apache Yetus 0.11.1 https://yetus.apache.org |


This message was automatically generated.



> Remove sync bottleneck in counters
> ----------------------------------
>
>                 Key: TEZ-4155
>                 URL: https://issues.apache.org/jira/browse/TEZ-4155
>             Project: Apache Tez
>          Issue Type: Improvement
>            Reporter: Rajesh Balamohan
>            Assignee: László Bodor
>            Priority: Trivial
>         Attachments: TEZ-4155.01.patch, TEZ-4155.02.patch, 
> image-2020-04-24-13-45-56-187.png
>
>
> [https://github.com/apache/tez/blob/master/tez-api/src/main/java/org/apache/tez/common/counters/Limits.java#L40]
>  
> All blue blocks are due to Limits.java sync.
>  
> !image-2020-04-24-13-45-56-187.png|width=1042,height=734!



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