What Does The Message No Managed Connection Available mean?


    It means that all possible connections to the db are in use and/or that a thread has timed-out waiting for a connection to open up.


    Possible solutions:


    Increase your connection pool size



    to your -ds.xml file to increase

    the number of connections available. The default is 20


    There is an attribute


    viewable on the jmx-console against the


    that can help you understand how many connections you really need.


    Tell your threads to wait longer for a connection to open up



    to your -ds.xml file to increase the length of time to wait. The default is 30000 (5000 before JBoss-3.2.4) milli-seconds.


    Make sure you are properly closing open connections