Issue

It seems our production application is losing it's DB connection to DB2.  The connection will only come back after we restart JBoss. We are using this datasource:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?><datasources>
    <local-tx-datasource>
        <jndi-name>testDB</jndi-name>
        <rar-name>jboss-local-jdbc.rar</rar-name>
        <use-java-context>true</use-java-context>
        <connection-definition>javax.sql.DataSource</connection-definition>
        <jmx-invoker-name>jboss:service=invoker,type=jrmp</jmx-invoker-name>
        <min-pool-size>1</min-pool-size>
        <max-pool-size>100</max-pool-size>
        <transaction-isolation>TRANSACTION_READ_COMMITTED</transaction-isolation>
        <blocking-timeout-millis>30000</blocking-timeout-millis>
        <idle-timeout-minutes>30</idle-timeout-minutes>
        <prefill>false</prefill>
        <background-validation>false</background-validation>
        <background-validation-millis>0</background-validation-millis>
        <validate-on-match>true</validate-on-match>
        <statistics-formatter>org.jboss.resource.statistic.pool.JBossDefaultSubPoolStatisticFormatter</statistics-formatter>
        <isSameRM-override-value>false</isSameRM-override-value>
        <allocation-retry>0</allocation-retry>
        <allocation-retry-wait-millis>5000</allocation-retry-wait-millis>
        <application-managed-security xsi:type="securityMetaData" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
        <metadata/>
        <type-mapping>DB2</type-mapping>
        <local-transaction/>
        <user-name>***********</user-name>
        <password>***********</password>
        <check-valid-connection-sql>SELECT COUNT(TYPESCHEMA) FROM SYSCAT.DATATYPES</check-valid-connection-sql>
        <prepared-statement-cache-size>100</prepared-statement-cache-size>
        <share-prepared-statements>false</share-prepared-statements>
        <set-tx-query-timeout>false</set-tx-query-timeout>
        <query-timeout>0</query-timeout>
        <url-delimiter>|</url-delimiter>
        <driver-class>com.ibm.db2.jcc.DB2Driver</driver-class>
        <connection-url>jdbc:db2://10.20.30.40:50014/testDB</connection-url>
    </local-tx-datasource>
</datasources>