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The MySQL Query Analyzer lets you monitor SQL statements executed on a MySQL server and see details about each query, as well as number of executions and execution times. Similar queries with different literal values are combined (normalized) for reporting purposes.
Query Analyzer collects information about SQL statements that a MySQL client application sends to the MySQL server. The client application must either route its database requests through the MySQL Enterprise Monitor Agent proxy service, or use the MySQL Enterprise Monitor Plugin for a given Connector that sends the information directly to MySQL Enterprise Service Manager. Once your MySQL client application is configured to communicate via the MySQL Enterprise Monitor Agent, queries are monitored and the normalized queries are sent to the MySQL Enterprise Monitor Agent.
For the different ways to enable Query Analysis, see Section 3.1, “Providing Query Analyzer Data” For the user interface of the Query Analyzer, see Section 2.6, “The Query Analyzer Tab” and Section 3.2, “Query Analyzer User Interface”.
The MySQL Proxy component and Query Analyzer require that clients
connecting through MySQL Enterprise Monitor Agent use MySQL 5.0 or later. Clients
that use the
libmysqlclient library provided
with MySQL 4.1 or earlier do not work with MySQL Enterprise Monitor Agent.
Once the data is collected, you view and monitor the queries, check the execution statistics, and filter and drill down on the information. By comparing the queries to the server graphs, you can correlate query execution with server status. For more information on viewing, filtering and reporting on the Query Analyzer data, see Section 3.2, “Query Analyzer User Interface”.
When MySQL Enterprise Monitor is not accessible from a
query analyzer plugin, then the application performance will not
be impacted. Over time, the plugin will determine that a backlog
of reportable data exists, and fall back to consolidating it over
longer ranges of time. But if more than 1,000 canonical queries
are being used by the application (an unlikely scenario), then
data will begin to be dropped.
MySQL Enterprise subscription, MySQL Enterprise Monitor, MySQL
Replication Monitor, and MySQL Query Analyzer are only available
to commercial customers. To learn more, see: