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https://issues.apache.org/jira/browse/HIVE-25582?focusedWorklogId=681980&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-681980
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ASF GitHub Bot logged work on HIVE-25582:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 16/Nov/21 12:30
Start Date: 16/Nov/21 12:30
Worklog Time Spent: 10m
Work Description: dengzhhu653 commented on pull request #2693:
URL: https://github.com/apache/hive/pull/2693#issuecomment-970226079
> Wouldn't it be possible to somehow fix the default cache implementation
instead of hacking that condition with !tez further? And from the above
comments I suspect that this could be covered with a test - or it needs some
special circumstances?
Thanks a lot for the feedback! Let me take a look at the default cache
implementation, and add a qtest to cover this.
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Issue Time Tracking
-------------------
Worklog Id: (was: 681980)
Time Spent: 1.5h (was: 1h 20m)
> Empty result when using offset limit with MR
> --------------------------------------------
>
> Key: HIVE-25582
> URL: https://issues.apache.org/jira/browse/HIVE-25582
> Project: Hive
> Issue Type: Bug
> Components: Operators
> Affects Versions: 4.0.0
> Reporter: Zhihua Deng
> Assignee: Zhihua Deng
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> The _mr.ObjectCache_ caches nothing, every time when the limit [retrieving
> global counter from the
> cache|https://github.com/apache/hive/blob/7b3ecf617a6d46f48a3b6f77e0339fd4ad95a420/ql/src/java/org/apache/hadoop/hive/ql/exec/LimitOperator.java#L150-L161],
> a new AtomicInteger will be returned. This make offset _<=
> currentCountForAllTasksInt_ always be evaluated to false, as _offset > 0_,
> the operator will skip all rows.
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