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https://issues.apache.org/jira/browse/HIVE-24866?focusedWorklogId=607551&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-607551
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ASF GitHub Bot logged work on HIVE-24866:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 07/Jun/21 00:17
Start Date: 07/Jun/21 00:17
Worklog Time Spent: 10m
Work Description: github-actions[bot] commented on pull request #2057:
URL: https://github.com/apache/hive/pull/2057#issuecomment-855489135
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 d...@hive.apache.org list if the patch is in
need of reviews.
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Issue Time Tracking
-------------------
Worklog Id: (was: 607551)
Time Spent: 40m (was: 0.5h)
> FileNotFoundException during alter table concat
> -----------------------------------------------
>
> Key: HIVE-24866
> URL: https://issues.apache.org/jira/browse/HIVE-24866
> Project: Hive
> Issue Type: Bug
> Affects Versions: 2.4.0, 3.2.0, 4.0.0
> Reporter: Prasanth Jayachandran
> Assignee: Prasanth Jayachandran
> Priority: Major
> Labels: pull-request-available
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Because of the way combinefile IF groups files based on node and rack
> locality, there are cases where single big orc file gets spread across 2 or
> more combine hive split. When first task completes, as part of jobCloseOp the
> source orc file of concatenation is moved/renamed which can lead to
> FileNotFoundException in subsequent mappers that has partial split of that
> file.
> A simple fix would be for the mapper with start of the split to own the
> entire orc file for concatenation. If a mapper gets partial split which is
> not the start then it can skip the entire file.
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