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Hadoop >> mail # dev >> Re: [jira] Yang He shared "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." with you


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Re: [jira] Yang He shared "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." with you
Thank you for reporting, Yang. Let's continue to discuss on JIRA.
Thanks, Tsuyoshi

On Mon, Dec 16, 2013 at 5:30 PM, Yang He (JIRA) <[EMAIL PROTECTED]> wrote:
>     Yang He shared an issue with you
>     ----------------------------------
>
>     can somebody review this ? thranks. this issue is significant for hbase,since region metrics is invalidate when region splited;
>
>> 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: metrics
>>    Affects Versions: 2.2.0
>>            Reporter: Yang He
>>         Attachments: HADOOP-10161_0_20131211.patch, hadoop-metrics.properties, hadoop-metrics2.properties
>>
>>
>> The property of dmax in ganglia configration is  metric dead time , when one  metrics is disappeared ,so no more value of the metric will be emtic to the gmond,after 'dmax' seconds,then  gmond will destroy the metric in memery . in hadoop metrics framework ,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 ,and  there does not have  a method to configure the defualt value of  dmax for all metrics .
>
>
>
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- Tsuyoshi
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB