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From "Yang He (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-10161) In the hadoop metrics framework,The default value of dmax is 0, which means gmond process will never delete this metirc although it is disappeared.
Date Wed, 11 Dec 2013 03:57:10 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-10161?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yang He updated HADOOP-10161:
-----------------------------

    Attachment: HADOOP-10161_0_20131211.patch

> In the hadoop metrics framework,The default value of dmax is 0, which means gmond process
will never delete this metirc although it is disappeared.
> ---------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-10161
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10161
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: fs
>            Reporter: Yang He
>            Priority: Minor
>         Attachments: HADOOP-10161_0_20131211.patch
>
>
> The property of dmax is  metric dead time , when one  metrics is disappeared ,so no more
value of the metric will be emtic to the gmond,after 'dmax' times ,then  gmond will destroy
the metric in memery . the default value is 0,which means the gmond will never destroy the
 metric althought the metric is disappeared ,the gmetad daemon also does not delete the rrdtool
file. 



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