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Posted to issues@impala.apache.org by "Tim Armstrong (Jira)" <ji...@apache.org> on 2019/11/25 17:58:00 UTC

[jira] [Created] (IMPALA-9197) Hash table lookup should be read-only

Tim Armstrong created IMPALA-9197:
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             Summary: Hash table lookup should be read-only
                 Key: IMPALA-9197
                 URL: https://issues.apache.org/jira/browse/IMPALA-9197
             Project: IMPALA
          Issue Type: Sub-task
          Components: Backend
            Reporter: Tim Armstrong


For IMPALA-9156, we need concurrent lookups to the hash table to be thread safe. We are pretty close to that, except a few stats are maintained in HashTable and would be modified concurrently from multiple threads.

We should modify those  places to update the stats in HashTableCtx instead.



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