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https://issues.apache.org/jira/browse/HIVE-21823?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Peter Vary updated HIVE-21823:
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Attachment: HIVE-21823.4.patch
> 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
> Labels: pull-request-available
> Attachments: HIVE-21823.2.patch, HIVE-21823.3.patch,
> HIVE-21823.4.patch, HIVE-21823.patch
>
> Time Spent: 2h 40m
> Remaining Estimate: 0h
>
> 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 time 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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