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From "Peter Vary (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HIVE-21823) New metrics to get the average queue length / free executor number for a given time window
Date Mon, 03 Jun 2019 10:09:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-21823?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Peter Vary reassigned HIVE-21823:
---------------------------------


> New metrics to get the average queue length / free executor number for a given time window
> ------------------------------------------------------------------------------------------
>
>                 Key: HIVE-21823
>                 URL: https://issues.apache.org/jira/browse/HIVE-21823
>             Project: Hive
>          Issue Type: Sub-task
>          Components: llap
>            Reporter: Peter Vary
>            Assignee: Peter Vary
>            Priority: Major
>
> We need to calculate the average queue size / free executor size for a window to have
good data for making routing decisions.
> Interesting things to consider:
>  * The timeĀ gap between arriving request can be different, so simple average is not
enough to have correct data
>  * We need to have 2 parameters
>  ** Time window length
>  ** Maximum data point numbers - so we will not collect "infinite" amount of data at
high load



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