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Date: Wed, 6 Apr 2016 11:55:25 +0000 (UTC)
From: "Dmytro Sen (JIRA)" <jira@apache.org>
To: issues@ambari.apache.org
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Subject: [jira] [Commented] (AMBARI-15588) Use ">>" instead of ">" to write
 ambari-metrics-monitor.out
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    [ https://issues.apache.org/jira/browse/AMBARI-15588?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15228153#comment-15228153 ] 

Dmytro Sen commented on AMBARI-15588:
-------------------------------------

Committed to trunk

> Use ">>" instead of ">" to write ambari-metrics-monitor.out
> -----------------------------------------------------------
>
>                 Key: AMBARI-15588
>                 URL: https://issues.apache.org/jira/browse/AMBARI-15588
>             Project: Ambari
>          Issue Type: Improvement
>          Components: ambari-metrics
>            Reporter: Akira AJISAKA
>            Assignee: Akira AJISAKA
>              Labels: newbie
>             Fix For: 2.4.0
>
>         Attachments: AMBARI-15588.01.patch
>
>
> If we want to rotate ambari-metrics-monitor.out by logrotate (using copytruncate option), we need to use ">>" instead of ">" not to keep the file offset to write. If the offset is kept, null characters are padded in the new file.
> {code:title=ambari-metrics-monitor}
>     nohup ${PYTHON} ${METRIC_MONITOR_PY_SCRIPT} "$@" > ${OUTFILE} 2>&1 &
> {code}
> should be 
> {code}
>     nohup ${PYTHON} ${METRIC_MONITOR_PY_SCRIPT} "$@" >> ${OUTFILE} 2>&1 &
> {code}


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