Connection Pool statistics look low and database shows more than expected connections

Solution Verified - Updated -

Issue

  • JDBC connection leak
  • apps are closing connections properly still lot of inactive session at DB side
  • causing slow performance and eventually bringing down the application and DB
  • Datasource statistics ActiveCount is dramatically different from the open connections as reported by the database server
  • JBJCA-1276
    • Prefill race condition in flush

Environment

  • Red Hat JBoss Enterprise Application Platform prior to 6.4.5
  • prefill=true as defined in
    • jboss-as-datasources_1_1.xsd
    • jboss-as-datasources_1_2.xsd

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