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https://issues.apache.org/jira/browse/HADOOP-4960?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12663948#action_12663948
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Ari Rabkin commented on HADOOP-4960:
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Good catch. +1
> Hadoop metrics are showing in irregular intervals
> -------------------------------------------------
>
> Key: HADOOP-4960
> URL: https://issues.apache.org/jira/browse/HADOOP-4960
> Project: Hadoop Core
> Issue Type: Bug
> Components: contrib/chukwa
> Environment: Redhat 5.1, Java 6
> Reporter: Eric Yang
> Assignee: Eric Yang
> Attachments: HADOOP-4960.patch
>
>
> dfs datanode metrics are not parsing correctly in demux. There was a bug
> introduced for rounding the timestamp of the metrics. Instead of log file
> timestamp, system current timestamp was used.
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