[ https://issues.apache.org/activemq/browse/AMQ-992?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gary Tully resolved AMQ-992. ---------------------------- Resolution: Fixed resolving this issue as 5.3 uses INNODB for all create table statements. > MySQL doesn't honor lock in JDBC Master Slave configuration? > ------------------------------------------------------------ > > Key: AMQ-992 > URL: https://issues.apache.org/activemq/browse/AMQ-992 > Project: ActiveMQ > Issue Type: Bug > Affects Versions: 4.1.0 > Environment: RHEL 4 > MySQL 4.x, 5.x > mysql-ab_jdbc_driver > Reporter: Steven Lotito > Fix For: 5.3.0 > > Attachments: mysql_obtain_lock.txt, patch.txt > > > I have been attempting to get the new 4.1 JDBC Master Slave configuration > working with MySQL. > The log from the first broker to start up states: > 2006-10-18 09:35:08,558 [main ] INFO DefaultDatabaseLocker > - Attempting to acquire the exclusive lock to become the Master broker > 2006-10-18 09:35:08,559 [main ] INFO DefaultDatabaseLocker > - Becoming the master on dataSource: > org.apache.commons.dbcp.basicdatasou...@136d9d8 > The 2nd broker to start up has an identical message and both brokers listen > for connections. > The 2nd broker should be waiting for the lock and NOT accepting connections, > if I understand http://www.activemq.org/site/jdbc-master-slave.html > correctly... > Oracle exhibits the expected behavior: > When running the exact same configuration (except using an Oracle > datasource), the first broker has the same log message as above, while the > 2nd broker halts at the "Attempting to acquire the exclusive lock to become > the Master broker" message until I fail the master. Then it becomes the > master. > Is this a known issue? I was able to replicate it using both MySql 4 and 5 > (trying both the MySQL Connector/J 3.1 and MySQL Connector/J 5.0 drivers) -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.