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Posted to issues@hive.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2022/09/06 05:33:00 UTC
[jira] [Work logged] (HIVE-26490) Iceberg: Residual expression is constructed for the task from multiple places causing CPU burn
[ https://issues.apache.org/jira/browse/HIVE-26490?focusedWorklogId=806248&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-806248 ]
ASF GitHub Bot logged work on HIVE-26490:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 06/Sep/22 05:32
Start Date: 06/Sep/22 05:32
Worklog Time Spent: 10m
Work Description: rbalamohan opened a new pull request, #3574:
URL: https://github.com/apache/hive/pull/3574
HIVE-26490: Iceberg: Residual expression is constructed for the task from multiple places causing CPU burn
Residual expression was evaluated multiple times in reader codepath causing CPU burn.
### What changes were proposed in this pull request?
- Reuse residual information
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Small internal cluster
Issue Time Tracking
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Worklog Id: (was: 806248)
Remaining Estimate: 0h
Time Spent: 10m
> Iceberg: Residual expression is constructed for the task from multiple places causing CPU burn
> ----------------------------------------------------------------------------------------------
>
> Key: HIVE-26490
> URL: https://issues.apache.org/jira/browse/HIVE-26490
> Project: Hive
> Issue Type: Bug
> Reporter: Rajesh Balamohan
> Priority: Major
> Labels: iceberg, performance
> Attachments: Screenshot 2022-08-22 at 12.58.47 PM.jpg
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> "HiveIcebergInputFormat.residualForTask(task, job)" is invoked from multiple places causing CPU burn.
> !Screenshot 2022-08-22 at 12.58.47 PM.jpg|width=918,height=932!
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