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Posted to issues@impala.apache.org by "Yu-Wen Lai (Jira)" <ji...@apache.org> on 2021/12/02 21:50:00 UTC

[jira] [Created] (IMPALA-11045) Should start transaction when auto_check_compaction is enabled

Yu-Wen Lai created IMPALA-11045:
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             Summary: Should start transaction when auto_check_compaction is enabled
                 Key: IMPALA-11045
                 URL: https://issues.apache.org/jira/browse/IMPALA-11045
             Project: IMPALA
          Issue Type: Bug
            Reporter: Yu-Wen Lai
            Assignee: Yu-Wen Lai


This is a follow-up of IMPALA-11032. Currently Impala doesn't open transaction for select queries, so we might still get a FileNotFound error when there is a compaction happen after compaction checking and the files get cleaned by the cleaner. To provide strong guarantee for this compaction checking approach, we need to open a transaction even for select queries so that the cleaner won't clean the files.



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