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Posted to dev@hive.apache.org by "Peter Varga (Jira)" <ji...@apache.org> on 2020/07/08 15:59:00 UTC

[jira] [Created] (HIVE-23819) Use ranges in ValidReadTxnList serialization

Peter Varga created HIVE-23819:
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             Summary: Use ranges in ValidReadTxnList serialization
                 Key: HIVE-23819
                 URL: https://issues.apache.org/jira/browse/HIVE-23819
             Project: Hive
          Issue Type: Improvement
            Reporter: Peter Varga
            Assignee: Peter Varga


Time to time we see a case, when the open / aborted transaction count is high and often the aborted transactions come in continues ranges.
When the transaction count goes high the serialization / deserialization to hive.txn.valid.txns conf gets slower and produces a large config value.



Using ranges in the string representation can mitigate the issue somewhat.



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