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https://issues.apache.org/jira/browse/HIVE-24936?focusedWorklogId=599722&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-599722
]
ASF GitHub Bot logged work on HIVE-24936:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 20/May/21 10:31
Start Date: 20/May/21 10:31
Worklog Time Spent: 10m
Work Description: harishjp commented on a change in pull request #2120:
URL: https://github.com/apache/hive/pull/2120#discussion_r635977406
##########
File path: ql/src/java/org/apache/hadoop/hive/ql/exec/Utilities.java
##########
@@ -1093,40 +1093,69 @@ public static void rename(FileSystem fs, Path src, Path
dst) throws IOException,
}
}
- private static void moveFile(FileSystem fs, FileStatus file, Path dst)
throws IOException,
+ private static void moveFileOrDir(FileSystem fs, FileStatus file, Path dst)
throws IOException,
Review comment:
Test renameOrMove files calls this, and is the public API. Tests for
that should cover cases here.
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Issue Time Tracking
-------------------
Worklog Id: (was: 599722)
Time Spent: 1h (was: 50m)
> Fix file name parsing and copy file move.
> -----------------------------------------
>
> Key: HIVE-24936
> URL: https://issues.apache.org/jira/browse/HIVE-24936
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2
> Reporter: Harish JP
> Assignee: Harish JP
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1h
> Remaining Estimate: 0h
>
> The taskId and taskAttemptId is not extracted correctly for copy files
> (00001_02_copy_3) and when doing a move file of an incompatible copy file the
> rename utility generates wrong file names. Ex: 00001_02_copy_3 is renamed to
> 00001_02_copy_3_1 if 00001_02_copy_3 already exists, ideally it should be
> 00001_02_copy_N.
>
> Incompatible files should be always renamed using the current task or it can
> get deleted if the file name conflicts with another task output file. Ex: if
> the input file name for a task is 00005_01 and is incompatible then if we
> move this file, it will be treated as an output file for task id 5, attempt 1
> which if exists will try to generate the same file and fail and another
> attempt will be made. There will be 2 files 00005_01, 00005_02, the deduping
> code will remove 00005_01 resulting in data loss. There are other scenarios
> where the same can happen.
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