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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5591) Checkpointing should use monotonic time when calculating period
Date Tue, 01 Apr 2014 21:10:19 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13957013#comment-13957013

Hadoop QA commented on HDFS-5591:

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 1 new or modified
test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in hadoop-hdfs-project/hadoop-hdfs.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/6567//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/6567//console

This message is automatically generated.

> Checkpointing should use monotonic time when calculating period
> ---------------------------------------------------------------
>                 Key: HDFS-5591
>                 URL: https://issues.apache.org/jira/browse/HDFS-5591
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 2.2.0
>            Reporter: Andrew Wang
>            Assignee: Charles Lamb
>            Priority: Minor
>              Labels: newbie
>         Attachments: HDFS-5591.001.patch, HDFS-5591.002.patch, HDFS-5591.003.patch, HDFS-5591.004.patch,
> Both StandbyCheckpointer and SecondaryNameNode use {{Time.now}} rather than {{Time.monotonicNow}}
to calculate how long it's been since the last checkpoint. This can lead to issues when the
system time is changed.

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