Database servers require regular maintenance and during these periods you may wish to stop Monitor Agents from reporting their findings. During a blackout period rules are not evaluated and notifications are put on hold but Monitor Agents continue to collect data . In this respect blacked-out rules differ from disabled rules; data continues to be collected and stored in the repository.
Blackout periods are enabled by entering the following URL into the address bar of your browser, substituting the appropriate host name, port and server name:
localhost:18080/rest?command=blackout » &server_name=
If you are unsure of the host name and port to use, check the
configuration_report.txt file. Be sure to
specify the correct port for the Tomcat server. Specify the server
you wish to blackout using the name that appears in the Server
Tree, being sure to include a colon and port number as shown in
the preceding example.
An HTTP authentication dialog box requesting your Dashboard user
name and password will open. Specify the administrator's
credentials. The default user name is
use the password you specified when you initially logged in to the
You can also blackout a server group by entering the following URL into the address bar of your browser, substituting the appropriate host name, and server group name:
localhost:18080/rest?command=blackout » &group_name=
When the HTTP authentication dialog box opens, enter the administrator's credentials.
You can confirm that a server is blacked out by looking at the server name in the Dashboard; the name of a blacked out server is greyed.
To reactivate the blacked-out server or server group, use the
appropriate URL and query string, changing the
blackout_state=true name/value pair to
blackout_state=false. Again, this must be done
by a user with administrative privileges.
Restarting MySQL Enterprise Monitor will not reactivate a blacked out server.