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From "Richard Martin (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMQ-3654) JDBC Master/Slave : Slave cannot acquire lock when the master loose database connection.
Date Fri, 06 Jan 2012 15:18:39 GMT

     [ https://issues.apache.org/jira/browse/AMQ-3654?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Richard Martin updated AMQ-3654:
--------------------------------

    Environment: 
Unix/Redhat 5.6
ActiveMQ 5.5.0
Oracle 10G

  was:
Unix/Redhat 5.6
ActiveMQ 5.5.0

    
> JDBC Master/Slave : Slave cannot acquire lock when the master loose database connection.
> ----------------------------------------------------------------------------------------
>
>                 Key: AMQ-3654
>                 URL: https://issues.apache.org/jira/browse/AMQ-3654
>             Project: ActiveMQ
>          Issue Type: Bug
>    Affects Versions: 5.5.0
>         Environment: Unix/Redhat 5.6
> ActiveMQ 5.5.0
> Oracle 10G
>            Reporter: Richard Martin
>            Priority: Critical
>             Fix For: 5.6.0
>
>
> Our configuration is JDBC Master/Slave with one master and one slave. When the master
is started, he acquire the database lock.
> Then when the slave is started, he wait to acquire the database lock. When the master
loose the network connection to the database, the lock in the database is not removed and
the slave connot acquire the database lock. In this situation, the master is unable to respond
to client (due to network failure)
> and the slave is not started because he can't acquire the database lock.
> When the master is killed, the slave can't acquire the database lock too. After the network
connection is restored, when the master starts, it cannot
> acquire lock to the database (because the lod lock is always present) so now, we have
two slaves and no master.
> Please, refer to this issue which is the same problem : AMQ-1958 

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