[ https://issues.jboss.org/browse/JBTM-2135?page=com.atlassian.jira.plugin.... ] Michael Musgrove commented on JBTM-2135: ---------------------------------------- The failure is caused by a MySql deadlock when client0 initialises the OTSManager (com.mysql.jdbc.exceptions.jdbc4.MySQLTransactionRollbackException: Deadlock found when trying to get lock; try restarting transaction) whilst writing a "FactoryContactItem" record to the store. It isn't clear from the logs which other process and locks are involved. The advice in the MySQL docs is: bq. Always be prepared to re-issue a transaction if it fails due to deadlock. Deadlocks are not dangerous. Just try again. Do we think it is worthwhile changing retrying failed JDBCStore.write_committed operations -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira