[ 
https://issues.apache.org/jira/browse/YARN-4403?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15057337#comment-15057337
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Hudson commented on YARN-4403:
------------------------------

FAILURE: Integrated in Hadoop-Hdfs-trunk-Java8 #693 (See 
[https://builds.apache.org/job/Hadoop-Hdfs-trunk-Java8/693/])
YARN-4403. (AM/NM/Container)LivelinessMonitor should use monotonic time 
(jianhe: rev 1cb3299b48a06a842aa3f6cf37ccf44a49af43b5)
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/SystemClock.java
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/MonotonicClock.java
* hadoop-yarn-project/CHANGES.txt
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/NMLivelinessMonitor.java
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmcontainer/ContainerAllocationExpirer.java
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/AbstractLivelinessMonitor.java
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/attempt/AMLivelinessMonitor.java


> (AM/NM/Container)LivelinessMonitor should use monotonic time when calculating 
> period
> ------------------------------------------------------------------------------------
>
>                 Key: YARN-4403
>                 URL: https://issues.apache.org/jira/browse/YARN-4403
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Junping Du
>            Assignee: Junping Du
>            Priority: Critical
>             Fix For: 2.8.0
>
>         Attachments: YARN-4403-v2.patch, YARN-4403.patch
>
>
> Currently, (AM/NM/Container)LivelinessMonitor use current system time to 
> calculate a duration of expire which could be broken by settimeofday. We 
> should use Time.monotonicNow() instead.



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