Step 1: Start JConsole from JDK\bin\jconsole.exe.
Step 2: Enter the JMX URL, user name and password as in the following:
Username : controlRole
Password : change_asap
JMX url : service:jmx:rmi:///jndi/rmi://localhost:50500/alfresco/jmxrmi
The default username and password can be found in the "alfresco-jmxrmi.access" and "alfresco-jmxrmi.password" files located in the "tomcat/webapps/alfresco/WEB-INF/classes/alfresco" directory.
Step 3: Click the MBeans tab and expand AlfrescoàConfiguration in the tree control.
Step 4: Navigate to the sub-system that you want to restart. Here I am restarting the Synchronization sub-system.
Step 5: Expand the treeview control to Synchronization à defaultà Operation.
Step 6: Press the Stop button to stop this sub-system and wait a few seconds to get the status message.
Step 7: Wait for 1 or 2 minutes.
Step 8: Press the Start button to start this sub-system again and wait a few seconds to get the status message.