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Date: Thu, 27 Apr 2017 09:55:04 +0000 (UTC)
From: "Varun Saxena (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
Message-ID: <JIRA.13061344.1491286283000.64510.1493286904211@Atlassian.JIRA>
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Subject: [jira] [Commented] (YARN-6435) [ATSv2] Can't retrieve more than
 1000 versions of metrics in time series
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archived-at: Thu, 27 Apr 2017 09:55:08 -0000


    [ https://issues.apache.org/jira/browse/YARN-6435?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15986295#comment-15986295 ] 

Varun Saxena commented on YARN-6435:
------------------------------------

[~rohithsharma], should we add a configuration to fix this issue?

> [ATSv2] Can't retrieve more than 1000 versions of metrics in time series
> ------------------------------------------------------------------------
>
>                 Key: YARN-6435
>                 URL: https://issues.apache.org/jira/browse/YARN-6435
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Rohith Sharma K S
>            Assignee: Rohith Sharma K S
>            Priority: Critical
>         Attachments: YARN-6435.0001.patch
>
>
> It is observed that, even though *metricslimit* is set to 1500, maximum number of metrics values retrieved is 1000. 
> This is due to, while creating EntityTable, metrics column family max version is specified as 1000 which is hardcoded in {{EntityTable#DEFAULT_METRICS_MAX_VERSIONS}}. So, HBase will return max version with following {{MIN(cf max version , user provided max version)}}. 
> This behavior is contradicting the documentation which claims that 
> {code}
> metricslimit - If specified, defines the number of metrics to return. Considered only if fields contains METRICS/ALL or metricstoretrieve is specified. Ignored otherwise. The maximum possible value for metricslimit can be maximum value of Integer. If it is not specified or has a value less than 1, and metrics have to be retrieved, then metricslimit will be considered as 1 i.e. latest single value of metric(s) will be returned.
> {code} 


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