MySQL Cluster Resources Test

This test measures the effect of query execution on the disk and memory resources of each node in the target MySQL Cluster database server.

Target of the test : A MySQL Cluster

Agent deploying the test : A remote agent

Outputs of the test : One set of results for each node in the target MySQL Cluster database server being monitored

Configurable parameters for the test
Parameter Description

Test Period

How often should the test be executed.

Host

The host for which the test is to be configured.

Port

The port at which the specified host listens.

Database

Specify the name of a database on the target MySQL Cluster database server being monitored

Username and Password

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 Cluster database server. To know how to create such a user, refer to Pre-requisites for Monitoring the MySQL Cluster Database Server topic.

Confirm Password

Confirm the password by retyping it here.

Measurements made by the test
Measurement Description Measurement Unit Interpretation

Opened tables

Indicates the number of tables that were opened on this node during the last measurement period.

Number

If this value is high, then it indicates that the “table_cache” value is probably too small.

Created tmp disk tables

Indicates the number of implicit temporary tables that were created on the disk of this node, while executing statements during the last measurement period.

Number

If the value for this measure is high, consider increasing the ‘tmp_table_size’ configuration setting for the server.

Created tmp tables

Indicates the number of implicit temporary tables that were created in the memory created while executing statements during the last measurement period.  

Number