Default Parameters for MySQLTabSpcTest

In an effort to track the growth of individual databases in a MySQL cluster, administrators may want to time and again check how many rows of data each table in a cluster database contains. In the process, they will be able to identify those tables with more than a permissible number of records. Based on this finding, they can then decide whether deletion of a few or more unnecessary records from these ‘large tables’ can keep database growth under check. Similarly, to ensure that an instance in the cluster database does not grow uncontrollably, administrators have to periodically check the size of the database tables, isolate the tables with the maximum size, and see if the table size can somehow be reduced. The MySQLTabSpcTest test helps administrators in this exercise.

This test reports the total number of tables that contain more than a configured number of records and the total number of top tables in a given database in terms of size. The detailed diagnosis of this test will help administrators figure our the exact tables that has outgrown in records and size.

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

• The TEST PERIOD list box helps the user to choose how often should the test be executed.

• In the DATABASE text box 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.

• In the TABLE ROWS text box specify the number of records beyond which this test will consider a table as a large table.

• In the TABLE SIZE (MB) text box specify the size of the table beyond which this test will consider a table as a large table.

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

• Once the above values are provided, click on the UPDATE button to 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.