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https://issues.apache.org/jira/browse/YARN-5105?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15295179#comment-15295179
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Varun Saxena commented on YARN-5105:
------------------------------------

We cannot really set the number of versions to fetch on each column qualifier / 
column family. We can only set it on Scan/Get.
We do not really need to fetch anything other than latest version for each 
column other than metrics.
So we can set max versions to 1 each time and set it to -1(unlimited)  if we 
want a time series. We can support this by indicating so in fields to retrieve. 
If fields to retrieve is METRICS, it would mean single value and 
METRICS_TIME_SERIES 

Also, regarding query by time range, there is an issue, that we again cannot 
set time range at qualifier level. It can only be set on Scan/Get which is an 
issue for YARN-4455 implementation. So instead of time range we can support 
limit for metric values returned in time series.

[~sjlee0], thoughts ?

> entire time series is returned for YARN container system metrics (CPU and 
> memory)
> ---------------------------------------------------------------------------------
>
>                 Key: YARN-5105
>                 URL: https://issues.apache.org/jira/browse/YARN-5105
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>    Affects Versions: YARN-2928
>            Reporter: Sangjin Lee
>            Assignee: Varun Saxena
>              Labels: yarn-2928-1st-milestone
>
> I see that the entire time series of the CPU and memory metrics are returned 
> for the YARN containers REST query. This has a potential of bloating the 
> output big time.
> {noformat}
> "metrics": [
> {
>     "type": "TIME_SERIES",
>     "id": "MEMORY",
>     "values": 
> {
>     "1463518173363": ​407539712,
>     "1463518170347": ​407539712,
> {noformat}



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