Agents Administration - Tests
 

Default Parameters for MySQLSesWaitEvtTest

This test monitors wait events to reveal the events per wait class, and the average wait time experienced by the events of a class. Using the metrics reported by this test, DBAs can isolate the type of wait events that are occurring frequently on the database server, and how long such events last. Since the wait class reveals the source of the frequent wait events, from here, all the administrator needs to do is perform simple sequence of diagnostics to figure out why events of this type recur on the database server.

This page depicts the default parameters that need to be configured for the MySQLSesWaitEvtTest.

  • The TEST PERIOD list box helps the user to decide how often this test needs to be executed.

  • In the DATABASE, specify the name of a database on the target MySQL database server being monitored.

  • The eG agent has to be configured with the credentials of a user who has server-wide Process and Select privileges on the monitored MySQL server. Specify the credentials of such a user in the USERNAME and PASSWORD text boxes. To know how to create such a user, refer to Pre-requisites for Monitoring the MySQL Server topic in the Monitoring MySQL Server document.

  • Confirm the password by retyping it in the CONFIRM PASSWORD text box.

  • By default, the detailed diagnosis of this test, if enabled, will report only the top-10 records. This is why, the DD ROW COUNT parameter is set to 10 by default. If you want to include more or less records in detailed diagnosis, then, change the value of this parameter accordingly.

  • By default, SHOW EXPLAIN PLAN parameter is set to No indicating that the detailed diagnosis of this test will not list the detailed query plan of the root blockers. If you wish to view the detailed query plan for each root blocker reported by this test, then, set this flag to Yes.

  • By default, the target MySQL server being monitored is not SSL-enabled. This indicates that by default, the eG agent communicates with the MySQL server using HTTP. Accordingly, the SSL flag is set to No by default. If you configure the MySQL server to use SSL, then make sure that the SSL flag is set to Yes, so that the eG agent communicates with the MySQL server using HTTPS.

  • Once the necessary values have been provided, clicking on the UPDATE button will register the changes made.

When changing default configurations of tests, the values with “$” indicate variables that will be replaced by the eG system according to the specific server being managed - for instance, $hostName is the host/nickname of the target host, $port is the port number of the server being monitored. E.g., for a server xyz:80, $hostName will be changed automatically by the eG manager to “xyz*” and $port will be changed to “80” when configuring a test.