Hello all:

  I got below error when running jboss 7.1.1 bundled with liferay portal 6.1.1.

02:00:50,586 WARN  [org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory] (liferay/scheduler_dispatch-634) Destroying connection that is not valid, due to the following exception: oracle.jdbc.driver.T4CConnection@68e54de: java.sql.SQLException: pingDatabase failed status=-2

At the meantime, the cpu utilization rate is very high , often go up to 99%, don't know why.

  I saw the thread pingDatabase failed statu s=-2 and tried to set transaction isolation level to REPEATABLE_READ ,  but my jboss  couldn't be started.

Below is the standalone.xml I edited:

<subsystem xmlns="urn:jboss:domain:infinispan:1.2" default-cache-container="hibernate">
            <cache-container name="hibernate" default-cache="local-query">
                <local-cache name="entity">
                    <transaction mode="NON_XA"/>
                    <eviction strategy="LRU" max-entries="10000"/>
                    <locking isolation-level="REPEATABLE_READ"/>
                    <expiration max-idle="100000"/>
                </local-cache>
                <local-cache name="local-query">
                    <transaction mode="NONE"/>
                    <eviction strategy="LRU" max-entries="10000"/>
                    <locking isolation-level="REPEATABLE_READ"/>
                    <expiration max-idle="100000"/>
                </local-cache>
                <local-cache name="timestamps">
                    <transaction mode="NONE"/>
                    <eviction strategy="NONE"/>
                    <locking isolation-level="REPEATABLE_READ"/>
                </local-cache>
            </cache-container>
        </subsystem>

Is there anything wrong?

Thanks.

Kurt