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https://issues.apache.org/activemq/browse/AMQ-1591?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Dave Stanley resolved AMQ-1591.
-------------------------------

    Resolution: Fixed

The DB lock is getting refreshed correctly now.

One symptom of this bug was that when using a mySQL backed store, the lock 
would expire (due to inactivity) after about 12 hours. If the broker was setup 
as a master-slave, the slave would try and become the master but this would 
fail as the master was still listening ...

{code}
INFO  DefaultDatabaseLocker          - Attempting to acquire the exclusive lock 
to become the Master broker
INFO  DefaultDatabaseLocker          - Becoming the master on dataSource: org.ap
[EMAIL PROTECTED]
ERROR BrokerService                  - Failed to start ActiveMQ JMS Message Brok
er. Reason: java.io.IOException: Transport Connector could not be registered in 
JMX: Failed to bind to server socket: tcp://localhost:61616 due to: java.net.Bin
dException: Address already in use
java.io.IOException: Transport Connector could not be registered in JMX: Failed 
to bind to server socket: tcp://localhost:61616 due to: java.net.BindException: 
Address already in use
        at org.apache.activemq.util.IOExceptionSupport.create(IOExceptionSupport
.java:27)
        at org.apache.activemq.broker.BrokerService.registerConnectorMBean(Broke
rService.java:1298)
        at org.apache.activemq.broker.BrokerService.startTransportConnector(Brok
erService.java:1744)
        at org.apache.activemq.broker.BrokerService.startAllConnectors(BrokerSer
vice.java:1695)
        at org.apache.activemq.broker.BrokerService.start(BrokerService.java:439
)
{code}

/Dave

> When using a JDBC based database locker in an Master/Slave configuration, the 
> lock is not updated.
> --------------------------------------------------------------------------------------------------
>
>                 Key: AMQ-1591
>                 URL: https://issues.apache.org/activemq/browse/AMQ-1591
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.0.0
>            Reporter: Hiram Chirino
>            Assignee: Hiram Chirino
>             Fix For: 5.1.0
>
>
> The lockKeepAlivePeriod field was intialized to 0 and no accessors are 
> provided to initialize it.

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