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https://issues.apache.org/jira/browse/OOZIE-3160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16628734#comment-16628734
]
Hadoop QA commented on OOZIE-3160:
----------------------------------
Testing JIRA OOZIE-3160
Cleaning local git workspace
----------------------------
{color:green}+1 PATCH_APPLIES{color}
{color:green}+1 CLEAN{color}
{color:green}+1 RAW_PATCH_ANALYSIS{color}
. {color:green}+1{color} the patch does not introduce any @author tags
. {color:green}+1{color} the patch does not introduce any tabs
. {color:green}+1{color} the patch does not introduce any trailing spaces
. {color:green}+1{color} the patch does not introduce any line longer than
132
. {color:green}+1{color} the patch adds/modifies 2 testcase(s)
{color:green}+1 RAT{color}
. {color:green}+1{color} the patch does not seem to introduce new RAT
warnings
{color:green}+1 JAVADOC{color}
. {color:green}+1{color} Javadoc generation succeeded with the patch
. {color:green}+1{color} the patch does not seem to introduce new Javadoc
warning(s)
. {color:orange}WARNING{color}: the current HEAD has 100 Javadoc warning(s)
{color:green}+1 COMPILE{color}
. {color:green}+1{color} HEAD compiles
. {color:green}+1{color} patch compiles
. {color:green}+1{color} the patch does not seem to introduce new javac
warnings
{color:green}+1{color} There are no new bugs found in total.
. {color:green}+1{color} There are no new bugs found in [docs].
. {color:green}+1{color} There are no new bugs found in [sharelib/pig].
. {color:green}+1{color} There are no new bugs found in [sharelib/oozie].
. {color:green}+1{color} There are no new bugs found in [sharelib/hcatalog].
. {color:green}+1{color} There are no new bugs found in [sharelib/hive2].
. {color:green}+1{color} There are no new bugs found in [sharelib/distcp].
. {color:green}+1{color} There are no new bugs found in [sharelib/git].
. {color:green}+1{color} There are no new bugs found in [sharelib/hive].
. {color:green}+1{color} There are no new bugs found in [sharelib/spark].
. {color:green}+1{color} There are no new bugs found in [sharelib/streaming].
. {color:green}+1{color} There are no new bugs found in [sharelib/sqoop].
. {color:green}+1{color} There are no new bugs found in [webapp].
. {color:green}+1{color} There are no new bugs found in [examples].
. {color:green}+1{color} There are no new bugs found in
[fluent-job/fluent-job-api].
. {color:green}+1{color} There are no new bugs found in [client].
. {color:green}+1{color} There are no new bugs found in [tools].
. {color:green}+1{color} There are no new bugs found in [server].
. {color:green}+1{color} There are no new bugs found in [core].
{color:green}+1 BACKWARDS_COMPATIBILITY{color}
. {color:green}+1{color} the patch does not change any JPA
Entity/Colum/Basic/Lob/Transient annotations
. {color:green}+1{color} the patch does not modify JPA files
{color:red}-1 TESTS{color}
. Tests run : 2786
. Tests failed : 0
. Tests in error : 0
. Tests timed out : 1
Check console output for the full list of errors/failures
{color:green}+1 DISTRO{color}
. {color:green}+1{color} distro tarball builds with the patch
----------------------------
{color:red}*-1 Overall result, please check the reported -1(s)*{color}
{color:red}. There is at least one warning, please check{color}
The full output of the test-patch run is available at
. https://builds.apache.org/job/PreCommit-OOZIE-Build/865/
> PriorityDelayQueue put()/take() can cause significant CPU load due to busy
> waiting
> ----------------------------------------------------------------------------------
>
> Key: OOZIE-3160
> URL: https://issues.apache.org/jira/browse/OOZIE-3160
> Project: Oozie
> Issue Type: Bug
> Components: core
> Affects Versions: trunk
> Environment: all platforms
> Reporter: jj
> Assignee: Peter Bacsko
> Priority: Major
> Fix For: 5.1.0
>
> Attachments: 11111111111111.png, 222222222222222222.png,
> OOZIE-3160-001.patch, OOZIE-3160-002.patch, OOZIE-3160-003.patch,
> OOZIE-3160-004.patch, OOZIE-3160-005.patch, OOZIE-3160-006.patch,
> OOZIE-3160-007.patch, OOZIE-3160-POC01.patch, OOZIE-3160-POC02.patch,
> OOZIE-3160-POC02.patch, OOZIE-3160-POC03.patch, OOZIE-3160-POC04.patch,
> OOZIE-3160-POC05.patch, OOZIE-3160.amend.001.patch,
> OOZIE-3160.amend.002.patch, PriorityDelayQueue improvement - OOZIE-3160.pdf
>
>
> oozie process always consume high cpu. in my mechine,around 10%.
> I check the source code，find take() method in PriorityDelayQueue class。
> code:
> {code:java}
> public QueueElement<E> take() throws InterruptedException {
> QueueElement<E> e = poll();
> while (e == null) {
> Thread.sleep(10);
> e = poll();
> }
> return e;
> }
> {code}
> i think it's the reason of this problem. it's keep while, not await.
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