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Date: Thu, 23 Mar 2017 19:00:44 +0000 (UTC)
From: "Hadoop QA (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
Message-ID: <JIRA.13056813.1489702067000.105229.1490295644279@Atlassian.JIRA>
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Subject: [jira] [Commented] (YARN-6357) Implement
 TimelineCollector#putEntitiesAsync
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archived-at: Thu, 23 Mar 2017 19:00:49 -0000


    [ https://issues.apache.org/jira/browse/YARN-6357?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15939031#comment-15939031 ] 

Hadoop QA commented on YARN-6357:
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 23s{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} 14m 30s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 18s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 14s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 19s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 14s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 28s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 14s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 16s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 15s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 15s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 11s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 17s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 12s{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 36s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 15s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  0m 46s{color} | {color:green} hadoop-yarn-server-timelineservice in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 19s{color} | {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 21m 13s{color} | {color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:a9ad5d6 |
| JIRA Issue | YARN-6357 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12860203/YARN-6357.03.patch |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  findbugs  checkstyle  |
| uname | Linux a47bbf8a88ad 3.13.0-105-generic #152-Ubuntu SMP Fri Dec 2 15:37:11 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 2e30aa7 |
| Default Java | 1.8.0_121 |
| findbugs | v3.0.0 |
|  Test Results | https://builds.apache.org/job/PreCommit-YARN-Build/15366/testReport/ |
| modules | C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice U: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice |
| Console output | https://builds.apache.org/job/PreCommit-YARN-Build/15366/console |
| Powered by | Apache Yetus 0.5.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.


> Implement TimelineCollector#putEntitiesAsync
> --------------------------------------------
>
>                 Key: YARN-6357
>                 URL: https://issues.apache.org/jira/browse/YARN-6357
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: ATSv2, timelineserver
>    Affects Versions: YARN-2928
>            Reporter: Joep Rottinghuis
>            Assignee: Haibo Chen
>              Labels: yarn-5355-merge-blocker
>         Attachments: YARN-6357.01.patch, YARN-6357.02.patch, YARN-6357.03.patch
>
>
> As discovered and discussed in YARN-5269 the TimelineCollector#putEntitiesAsync method is currently not implemented and TimelineCollector#putEntities is asynchronous.
> TimelineV2ClientImpl#putEntities vs TimelineV2ClientImpl#putEntitiesAsync correctly call TimelineEntityDispatcher#dispatchEntities(boolean sync,... with the correct argument. This argument does seem to make it into the params, and on the server side TimelineCollectorWebService#putEntities correctly pulls the async parameter from the rest call. See line 156:
> {code}
>     boolean isAsync = async != null && async.trim().equalsIgnoreCase("true");
> {code}
> However, this is where the problem starts. It simply calls TimelineCollector#putEntities and ignores the value of isAsync. It should instead have called TimelineCollector#putEntitiesAsync, which is currently not implemented.
> putEntities should call putEntitiesAsync and then after that call writer.flush()
> The fact that we flush on close and we flush periodically should be more of a concern of avoiding data loss; close in case sync is never called and the periodic flush to guard against having data from slow writers get buffered for a long time and expose us to risk of loss in case the collector crashes with data in its buffers. Size-based flush is a different concern to avoid blowing up memory footprint.
> The spooling behavior is also somewhat separate.
> We have two separate methods on our API putEntities and putEntitiesAsync and they should have different behavior beyond waiting for the request to be sent.


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