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https://issues.apache.org/jira/browse/HIVE-21694?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16834789#comment-16834789
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Hive QA commented on HIVE-21694:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12968048/HIVE-21694.02.patch
{color:red}ERROR:{color} -1 due to no test(s) being added or modified.
{color:green}SUCCESS:{color} +1 due to 15982 tests passed
Test results:
https://builds.apache.org/job/PreCommit-HIVE-Build/17153/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/17153/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-17153/
Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.YetusPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12968048 - PreCommit-HIVE-Build
> Hive driver wait time is fixed for task getting executed in parallel.
> ---------------------------------------------------------------------
>
> Key: HIVE-21694
> URL: https://issues.apache.org/jira/browse/HIVE-21694
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2
> Affects Versions: 4.0.0
> Reporter: mahesh kumar behera
> Assignee: mahesh kumar behera
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Attachments: HIVE-21694.01.patch, HIVE-21694.02.patch
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> During a command execution hive driver executes the task in a separate thread
> if the task to be executed is set as parallel. After starting the task,
> driver checks if the task has finished execution or not. If the task
> execution is not finished it waits for 2 seconds before waking up again to
> check the task status. In case of task with execution time in milliseconds,
> this wait time can induce substantial overhead. So instead of fixed wait
> time, exponential backedup sleep time can be used to reduce the sleep
> overhead. The sleep time can start with 100ms and can increase up to 2
> seconds doubling on each iteration.
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