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https://issues.apache.org/jira/browse/HIVE-16189?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15922770#comment-15922770
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Chaoyu Tang commented on HIVE-16189:
------------------------------------
I thought about that, but it seems a little difficult to create such a test
case where the HFDS rename (data move) fails in
{code}
if (srcFs.exists(srcPath) && !srcFs.rename(srcPath, destPath)) {
throw new IOException("Renaming " + srcPath + " to " + destPath + "
failed");
}
{code}
after the metadata change has been successfully committed.
Do you have any suggestion on that? I was able to manually reproduce this issue
and verify the patch by using debug breakpoint and simulating the file move
failure.
> Table column stats might be invalidated in a failed table rename
> ----------------------------------------------------------------
>
> Key: HIVE-16189
> URL: https://issues.apache.org/jira/browse/HIVE-16189
> Project: Hive
> Issue Type: Bug
> Reporter: Chaoyu Tang
> Assignee: Chaoyu Tang
> Attachments: HIVE-16189.patch
>
>
> If the table rename does not succeed due to its failure in moving the data to
> the new renamed table folder, the changes in TAB_COL_STATS are not rolled
> back which leads to invalid column stats.
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