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https://issues.apache.org/jira/browse/YARN-4219?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15105821#comment-15105821
 ] 

Hadoop QA commented on YARN-4219:
---------------------------------

| (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 0s 
{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 2 new or modified test 
files. {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 33s 
{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 7m 
46s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 15s 
{color} | {color:green} trunk passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 10s 
{color} | {color:green} trunk passed with JDK v1.7.0_91 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 
28s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 47s 
{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
50s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 3m 
47s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 39s 
{color} | {color:green} trunk passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 4m 4s 
{color} | {color:green} trunk passed with JDK v1.7.0_91 {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 38s 
{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m 
32s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 45s 
{color} | {color:green} the patch passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m 45s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 9s 
{color} | {color:green} the patch passed with JDK v1.7.0_91 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 2m 9s 
{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 30s 
{color} | {color:red} hadoop-yarn-project/hadoop-yarn: patch generated 12 new + 
225 unchanged - 1 fixed = 237 total (was 226) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 39s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
46s {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} xml {color} | {color:green} 0m 1s 
{color} | {color:green} The patch has no ill-formed XML file. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 0m 50s 
{color} | {color:red} 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice
 generated 1 new + 0 unchanged - 0 fixed = 1 total (was 0) {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 0m 50s 
{color} | {color:red} 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice
 generated 1 new + 0 unchanged - 0 fixed = 1 total (was 0) {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 25s 
{color} | {color:green} the patch passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 3m 50s 
{color} | {color:green} the patch passed with JDK v1.7.0_91 {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 20s 
{color} | {color:green} hadoop-yarn-api in the patch passed with JDK v1.8.0_66. 
{color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 1m 50s 
{color} | {color:green} hadoop-yarn-common in the patch passed with JDK 
v1.8.0_66. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 3m 31s 
{color} | {color:green} hadoop-yarn-server-applicationhistoryservice in the 
patch passed with JDK v1.8.0_66. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 3m 34s 
{color} | {color:green} hadoop-yarn-server-applicationhistoryservice in the 
patch passed with JDK v1.8.0_66. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 23s 
{color} | {color:green} hadoop-yarn-api in the patch passed with JDK v1.7.0_91. 
{color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 2m 12s 
{color} | {color:green} hadoop-yarn-common in the patch passed with JDK 
v1.7.0_91. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 4m 2s 
{color} | {color:green} hadoop-yarn-server-applicationhistoryservice in the 
patch passed with JDK v1.7.0_91. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 3m 52s 
{color} | {color:green} hadoop-yarn-server-applicationhistoryservice in the 
patch passed with JDK v1.7.0_91. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 
19s {color} | {color:green} Patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 65m 56s {color} 
| {color:black} {color} |
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|| Reason || Tests ||
| FindBugs | 
module:hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice
 |
|  |  Inconsistent synchronization of 
org.apache.hadoop.yarn.server.timeline.KeyValueBasedTimelineStore.serviceStopped;
 locked 62% of time  Unsynchronized access at 
KeyValueBasedTimelineStore.java:62% of time  Unsynchronized access at 
KeyValueBasedTimelineStore.java:[line 276] |
| FindBugs | 
module:hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice
 |
|  |  Inconsistent synchronization of 
org.apache.hadoop.yarn.server.timeline.KeyValueBasedTimelineStore.serviceStopped;
 locked 62% of time  Unsynchronized access at 
KeyValueBasedTimelineStore.java:62% of time  Unsynchronized access at 
KeyValueBasedTimelineStore.java:[line 276] |
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\\
|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:0ca8df7 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12782926/YARN-4219-trunk.004.patch
 |
| JIRA Issue | YARN-4219 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  findbugs  checkstyle  xml  |
| uname | Linux ab76f5b50e18 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 / 8bc93db |
| Default Java | 1.7.0_91 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-oracle:1.8.0_66 
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_91 |
| findbugs | v3.0.0 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-YARN-Build/10321/artifact/patchprocess/diff-checkstyle-hadoop-yarn-project_hadoop-yarn.txt
 |
| findbugs | 
https://builds.apache.org/job/PreCommit-YARN-Build/10321/artifact/patchprocess/new-findbugs-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-applicationhistoryservice.html
 |
| findbugs | 
https://builds.apache.org/job/PreCommit-YARN-Build/10321/artifact/patchprocess/new-findbugs-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-applicationhistoryservice.html
 |
| JDK v1.7.0_91  Test Results | 
https://builds.apache.org/job/PreCommit-YARN-Build/10321/testReport/ |
| modules | C:  hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api   
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common   
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice
   
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timeline-pluginstorage
  U: hadoop-yarn-project/hadoop-yarn |
| Max memory used | 77MB |
| Powered by | Apache Yetus 0.2.0-SNAPSHOT   http://yetus.apache.org |
| Console output | 
https://builds.apache.org/job/PreCommit-YARN-Build/10321/console |


This message was automatically generated.



> New levelDB cache storage for timeline v1.5
> -------------------------------------------
>
>                 Key: YARN-4219
>                 URL: https://issues.apache.org/jira/browse/YARN-4219
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>    Affects Versions: 2.8.0
>            Reporter: Li Lu
>            Assignee: Li Lu
>         Attachments: YARN-4219-YARN-4265.001.patch, 
> YARN-4219-YARN-4265.002.patch, YARN-4219-YARN-4265.003.patch, 
> YARN-4219-trunk.001.patch, YARN-4219-trunk.002.patch, 
> YARN-4219-trunk.003.patch, YARN-4219-trunk.004.patch
>
>
> We need to have an "offline" caching storage for timeline server v1.5 after 
> the changes in YARN-3942. The in memory timeline storage may run into OOM 
> issues when used as a cache storage for entity file timeline storage. We can 
> refactor the code and have a level db based caching storage for this use 
> case. 



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