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https://issues.apache.org/jira/browse/HIVE-17362?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16153362#comment-16153362
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Peter Vary commented on HIVE-17362:
-----------------------------------

I will be honest with you [~leftylev]: I am a developer, so it might be better 
if someone more user oriented decides on this :) Where would a user look for 
this info? The *hive.prewarm.spark.timeout* does not effect Tez. It only 
effects Spark, but the other prewarm parameters are used by both. What do you 
recommend? I would happy to do it :)

> The MAX_PREWARM_TIME should be configurable on HoS
> --------------------------------------------------
>
>                 Key: HIVE-17362
>                 URL: https://issues.apache.org/jira/browse/HIVE-17362
>             Project: Hive
>          Issue Type: Improvement
>          Components: Spark
>    Affects Versions: 3.0.0
>            Reporter: Peter Vary
>            Assignee: Peter Vary
>             Fix For: 3.0.0
>
>         Attachments: HIVE-17362.2.patch, HIVE-17362.patch
>
>
> When using HIVE_PREWARM_ENABLED, we are waiting MAX_PREWARM_TIME for the 
> containers to warm up. This is currently set to 5s. This is often not enough 
> for a spark session to initialize the executors. We should be able to 
> configure this, so we can set a value which has an effect.



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