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https://issues.apache.org/jira/browse/HIVE-24472?focusedWorklogId=582060&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-582060
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ASF GitHub Bot logged work on HIVE-24472:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 13/Apr/21 20:49
Start Date: 13/Apr/21 20:49
Worklog Time Spent: 10m
Work Description: pgaref commented on a change in pull request #2123:
URL: https://github.com/apache/hive/pull/2123#discussion_r612766954
##########
File path:
llap-tez/src/java/org/apache/hadoop/hive/llap/tezplugins/LlapTaskSchedulerService.java
##########
@@ -429,6 +437,11 @@ public LlapTaskSchedulerService(TaskSchedulerContext
taskSchedulerContext, Clock
delayedTaskSchedulerExecutor =
MoreExecutors.listeningDecorator(delayedTaskSchedulerExecutorRaw);
+ ExecutorService preemptTaskSchedulerExecutorRaw =
Executors.newFixedThreadPool(1,
Review comment:
Well, I agree but the actual LLAP preemption Conf we are using
https://github.com/apache/hive/blob/61d5c641b2e414c7b7dfd92f2b402db3583507c8/common/src/java/org/apache/hadoop/hive/conf/HiveConf.java#L5023
is actually targeting the TaskExecutorService within the LlapDaemon
(waitQueue tasks vs Running) and not the LlapTaskSchedulingService -- in a
sense this a different type of preemption and I am not sure we should just use
the same conf here.
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Issue Time Tracking
-------------------
Worklog Id: (was: 582060)
Time Spent: 1h 10m (was: 1h)
> Optimize LlapTaskSchedulerService::preemptTasksFromMap
> ------------------------------------------------------
>
> Key: HIVE-24472
> URL: https://issues.apache.org/jira/browse/HIVE-24472
> Project: Hive
> Issue Type: Sub-task
> Reporter: Rajesh Balamohan
> Assignee: Panagiotis Garefalakis
> Priority: Major
> Labels: pull-request-available
> Attachments: Screenshot 2020-12-03 at 12.13.03 PM.png
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> !Screenshot 2020-12-03 at 12.13.03 PM.png|width=1063,height=571!
> speculativeTasks could possibly include node information to reduce CPU burn
> in LlapTaskSchedulerService::preemptTasksFromMap
>
>
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