hive-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "ASF GitHub Bot (Jira)" <>
Subject [jira] [Work logged] (HIVE-23735) Reducer misestimate for export command
Date Tue, 01 Sep 2020 00:47:00 GMT


ASF GitHub Bot logged work on HIVE-23735:

                Author: ASF GitHub Bot
            Created on: 01/Sep/20 00:46
            Start Date: 01/Sep/20 00:46
    Worklog Time Spent: 10m 
      Work Description: github-actions[bot] commented on pull request #1165:

   This pull request has been automatically marked as stale because it has not had recent
activity. It will be closed if no further activity occurs.
   Feel free to reach out on the list if the patch is in need of reviews.

This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

For queries about this service, please contact Infrastructure at:

Issue Time Tracking

    Worklog Id:     (was: 476926)
    Time Spent: 20m  (was: 10m)

> Reducer misestimate for export command
> --------------------------------------
>                 Key: HIVE-23735
>                 URL:
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Rajesh Balamohan
>            Assignee: Rajesh Balamohan
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: HIVE-23735.1.wip.patch
>          Time Spent: 20m
>  Remaining Estimate: 0h
> {code}
> if (dest_tab.getNumBuckets() > 0) {
> ...
> }
> {code}
> For "export" command, HS2 creates a dummy table and for this table and gets "1" as the
number of buckets.
> {noformat}
> set hive.stats.autogather=false;
> export table sample_table to '/tmp/export/sampe_db/t1';
> {noformat}
> This causes issues in reducer estimates and always lands up with '1' as the number of
reducer task. 

This message was sent by Atlassian Jira

View raw message