Zoltán Borók-Nagy created IMPALA-10071:
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Summary: Impala shouldn't create filename starting with underscore
during TRUNCATE
Key: IMPALA-10071
URL: https://issues.apache.org/jira/browse/IMPALA-10071
Project: IMPALA
Issue Type: Bug
Reporter: Zoltán Borók-Nagy
When Impala TRUNCATEs an ACID table, it creates a new base directory with the
hidden file "_empty" in it.
Newer Hive versions ignore files starting with underscore, therefore they
ignore the whole base directory.
To resolve this issue we can simply rename the empty file to "empty".
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