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https://issues.apache.org/jira/browse/HIVE-25521?focusedWorklogId=661123&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-661123
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ASF GitHub Bot logged work on HIVE-25521:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 06/Oct/21 18:37
Start Date: 06/Oct/21 18:37
Worklog Time Spent: 10m
Work Description: harishjp commented on a change in pull request #2639:
URL: https://github.com/apache/hive/pull/2639#discussion_r723577374
##########
File path:
ql/src/test/org/apache/hadoop/hive/ql/io/orc/TestOrcFileStripeMergeRecordReader.java
##########
@@ -34,7 +35,7 @@
public class TestOrcFileStripeMergeRecordReader {
- private final int DEFAULT_STRIPE_SIZE = 5000;
+ private static final int DEFAULT_STRIPE_SIZE = 5000;
Review comment:
I think this is just a test stripe size, creating 64k rows in test is
too much when it does not provide any extra benefits. I think some arbitrary
default was chosen. The name is definitely misleading.
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Issue Time Tracking
-------------------
Worklog Id: (was: 661123)
Time Spent: 50m (was: 40m)
> Data corruption when concatenating files with different compressions in same
> table/partition
> --------------------------------------------------------------------------------------------
>
> Key: HIVE-25521
> URL: https://issues.apache.org/jira/browse/HIVE-25521
> Project: Hive
> Issue Type: Bug
> Reporter: Harish JP
> Assignee: Harish JP
> Priority: Major
> Labels: pull-request-available
> Time Spent: 50m
> Remaining Estimate: 0h
>
> Currently if files of different compressions are in same directory then
> concatenate can fail and cause data corruption. This happens because file can
> be moved by one task as incompatible file and the other tasks will fail after
> this.
>
> This issue is addressed in this Jira by only processing a file in one task
> where offset 0 is process and ignoring the the file in all other tasks.
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