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https://issues.apache.org/jira/browse/HDFS-5591?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Charles Lamb updated HDFS-5591:
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Attachment: HDFS-5591.002.patch
> 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
> Priority: Minor
> Labels: newbie
> Attachments: HDFS-5591.001.patch, HDFS-5591.002.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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