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https://issues.apache.org/jira/browse/HADOOP-15901?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16675702#comment-16675702
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Arpit Agarwal commented on HADOOP-15901:
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That is depressing to learn.
> IPC Client and Server should use Time.monotonicNow() for elapsed times.
> -----------------------------------------------------------------------
>
> Key: HADOOP-15901
> URL: https://issues.apache.org/jira/browse/HADOOP-15901
> Project: Hadoop Common
> Issue Type: Bug
> Components: ipc, metrics
> Reporter: Vinayakumar B
> Assignee: Vinayakumar B
> Priority: Major
> Attachments: HADOOP-15901-01.patch
>
>
> Client.java and Server.java uses {{Time.now()}} to calculate the elapsed
> times/timeouts. This could result in undesired results when system clock's
> time changes.
> {{Time.monotonicNow()}} should be used for elapsed time calculations within
> same JVM.
>
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