[teiid-issues] [JBoss JIRA] (TEIID-3404) Teiid DatabaseAppender JPA perisist Command log consume high CPU

[Kylin Soong (JIRA)]

Kylin Soong created TEIID-3404:
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             Summary: Teiid DatabaseAppender JPA perisist Command log consume high CPU
                 Key: TEIID-3404
                 URL: https://issues.jboss.org/browse/TEIID-3404
             Project: Teiid
          Issue Type: Bug
          Components: Tools
    Affects Versions: 8.7.1
         Environment: * DV 6.1
* [dynamicvdb-datafederation](https://github.com/teiid/teiid-quickstarts/tree/master/dynamicvdb-datafederation)
            Reporter: Kylin Soong
            Assignee: Steven Hawkins


I have 4 - 5 concurrent client query to Portfolio VDB, these cause  log  DatabaseAppender JPA perisist Command log thread consume high CPU. In my test, one log threads always swallow high CPU, if the concurrent client query more than 10, it swallow 100% cpu.

[command-logging-highcpu](https://github.com/kylinsoong/teiid-samples/tree/master/command-logging-highcpu) have detailed reproduce steps.



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