Peter Vary created HIVE-21823:
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Summary: 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
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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