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Posted to issues@trafodion.apache.org by "Alice Chen (JIRA)" <ji...@apache.org> on 2015/07/22 20:18:23 UTC

[jira] [Created] (TRAFODION-835) LP Bug: 1403987 - extra arkcmp processes being started during query compilation

Alice Chen created TRAFODION-835:
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             Summary: LP Bug: 1403987 - extra arkcmp processes being started during query compilation
                 Key: TRAFODION-835
                 URL: https://issues.apache.org/jira/browse/TRAFODION-835
             Project: Apache Trafodion
          Issue Type: Bug
          Components: sql-cmp
            Reporter: Anoop Sharma
            Assignee: Anoop Sharma
            Priority: Critical
             Fix For: 1.0 (pre-incubation)


An extra arkcmp process is being started when a query is getting compiled.
This will result in doubling the number of processes and will have impact on memory,
jvm usage as well as number of processes on the system. At higher concurrency, performance
will start to degrade. It will also start to impact multithreaded perf as there will now be
an extra external process started per thread.



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