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https://issues.apache.org/jira/browse/HIVE-25990?focusedWorklogId=737883&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-737883
]
ASF GitHub Bot logged work on HIVE-25990:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 08/Mar/22 00:31
Start Date: 08/Mar/22 00:31
Worklog Time Spent: 10m
Work Description: rbalamohan commented on a change in pull request #3058:
URL: https://github.com/apache/hive/pull/3058#discussion_r821221192
##########
File path: ql/src/java/org/apache/hadoop/hive/ql/exec/Utilities.java
##########
@@ -1514,6 +1523,17 @@ public static void mvFileToFinalPath(Path specPath,
Configuration hconf,
fs.delete(taskTmpPath, true);
}
+ private static void createFileList(Set<FileStatus> filesKept, Path srcPath,
Path targetPath, FileSystem fs)
+ throws IOException {
+ try (FSDataOutputStream outStream = fs.create(new Path(targetPath,
BLOB_FILES_KEPT))) {
+ outStream.writeBytes(srcPath.toString() + System.lineSeparator());
Review comment:
Is it needed to write the srcPath as first entry? Only file paths can
be written out and during reading, first entry's parent directory can be
assumed as srcPath?
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Issue Time Tracking
-------------------
Worklog Id: (was: 737883)
Time Spent: 0.5h (was: 20m)
> Optimise multiple copies in case of CTAS in external tables for Object stores
> -----------------------------------------------------------------------------
>
> Key: HIVE-25990
> URL: https://issues.apache.org/jira/browse/HIVE-25990
> Project: Hive
> Issue Type: Improvement
> Reporter: Ayush Saxena
> Assignee: Ayush Saxena
> Priority: Major
> Labels: pull-request-available
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> Presently for CTAS with external tables, there are two renames, operations,
> one from tmp to _ext and then from _ext to actual target.
> In case of object stores, the renames lead to actual copy. Avoid renaming by
> avoiding rename from tmp to _ext, but by creating a list of files to be
> copied in that directly, which can be consumed in the move task, to copy
> directly from tmp to actual target.
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