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From "Jan Wasserbauer (JIRA)" <>
Subject [jira] Created: (AMQ-1809) Failure with JDBCPersistenceAdapter
Date Thu, 19 Jun 2008 12:27:00 GMT
Failure with JDBCPersistenceAdapter

                 Key: AMQ-1809
             Project: ActiveMQ
          Issue Type: Bug
          Components: Message Store
    Affects Versions: 5.1.0
         Environment: ActiveMQ 5.1.0, JRE 1.6.0_05, Oracle 10.2.04
            Reporter: Jan Wasserbauer
         Attachments: commons-dbcp-1.2.2.jar, exception.txt

When using jdbcPersistenceAdapter with Oracle using DBCP BasicDataSource and poolPreparedStatements
set to true (default ActiveMQ configuration), the DBCP pool does not work corretly and opens
lots of new connections instead of reusing old ones. It does so until connection count is
so high, that database server starts refusing new connections and an exception is thrown.

Problem can be avoided by setting poolPreparedStatements to false and fixed by updating commons-dbcp-1.2.jar
to version commons-dbcp-1.2.2.jar

The exception is java.sql.SQLException: Výjimka vstupu/výstupu: Got minus one from a read
(Full stack trace is in attached text file)

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