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From "Sangjin Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4053) Change the way metric values are stored in HBase Storage
Date Wed, 11 Nov 2015 00:24:11 GMT

    [ https://issues.apache.org/jira/browse/YARN-4053?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14999660#comment-14999660
] 

Sangjin Lee commented on YARN-4053:
-----------------------------------

To make progress with this ticket, if you're in line with what Vrushali said above, we can
focus on implementing the correct long support in this ticket. We don't have to worry about
the other dimensions (whether to aggregate, or single-value v. time series) in here.

> Change the way metric values are stored in HBase Storage
> --------------------------------------------------------
>
>                 Key: YARN-4053
>                 URL: https://issues.apache.org/jira/browse/YARN-4053
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>    Affects Versions: YARN-2928
>            Reporter: Varun Saxena
>            Assignee: Varun Saxena
>         Attachments: YARN-4053-YARN-2928.01.patch, YARN-4053-YARN-2928.02.patch
>
>
> Currently HBase implementation uses GenericObjectMapper to convert and store values in
backend HBase storage. This converts everything into a string representation(ASCII/UTF-8 encoded
byte array).
> While this is fine in most cases, it does not quite serve our use case for metrics. 
> So we need to decide how are we going to encode and decode metric values and store them
in HBase.
>  



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