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https://issues.apache.org/jira/browse/IMPALA-7726?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16655996#comment-16655996
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Sean Mackrory commented on IMPALA-7726:
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Both happen, actually. The test initially fail because a test without purge
cannot find the files in trash. If I comment out the relevant assertions, the
same test will fail later because a file IS in the trash even though the table
/ partition was dropped WITH purge.
That's why I suspect a bug in exists(), because the logic just seems inverted,
but it's working correctly elsewhere and I can't find a flaw in it.
> Drop with purge tests fail against ABFS due to trash misbehavior
> ----------------------------------------------------------------
>
> Key: IMPALA-7726
> URL: https://issues.apache.org/jira/browse/IMPALA-7726
> Project: IMPALA
> Issue Type: Bug
> Reporter: Sean Mackrory
> Assignee: Sean Mackrory
> Priority: Major
>
> In testing IMPALA-7681, I've seen test_drop_partition_with_purge and
> test_drop_table_with_purge fail because of files not found in the trash are a
> drop without purge. I've traced that functionality through Hive, which uses
> Hadoop's Trash API, and traced through a bunch of scenarios in that API with
> ABFS and I can't see it misbehaving in any way. It also should be pretty
> FS-agnostic. I also suspected a bug in abfs_utils.py's exists() function, but
> have not been able to find one.
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