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From "Varun Saxena (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (YARN-4455) Support fetching metrics by time range
Date Wed, 22 Mar 2017 18:05:42 GMT

    [ https://issues.apache.org/jira/browse/YARN-4455?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15936814#comment-15936814
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Varun Saxena edited comment on YARN-4455 at 3/22/17 6:05 PM:
-------------------------------------------------------------

Thanks [~vrushalic] for the comments.

bq. If we know the metric name, we should set it in the scan and then use HBase scan#setTimeRange

If we use setTimeRange or setTimestamp wouldn't it apply to all columns? I mean if created
time column has a timestamp which does not fall within range, wouldn't that be excluded? Not
sure. IIUC, all cells have a timestamp.
I haven't really tried this out. Will check out the feasibility while coding.

bq. We should ensure we limit the number of records being returned. We should also set the
maxVersions to be 1.
Yes we currently have a metricsLimit query param which by default is 1. And we use it to set
max versions as you have suggested above.


was (Author: varun_saxena):
Thanks [~vrushalic] for the comments.

bq. If we know the metric name, we should set it in the scan and then use HBase scan#setTimeRange

If we use setTimeRange or setTimestamp wouldn't it apply to all columns? I mean if created
time column has a timestamp which does not fall within range, wouldn't that be excluded? IIUC,
all cells have a timestamp.

bq. We should ensure we limit the number of records being returned. We should also set the
maxVersions to be 1.
Yes we currently have a metricsLimit query param which by default is 1. And we use it to set
max versions as you have suggested above.

> Support fetching metrics by time range
> --------------------------------------
>
>                 Key: YARN-4455
>                 URL: https://issues.apache.org/jira/browse/YARN-4455
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>    Affects Versions: YARN-2928
>            Reporter: Varun Saxena
>            Assignee: Varun Saxena
>              Labels: YARN-5355, yarn-5355-merge-blocker
>




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