Table of Contents
This chapter provides an overview of Oracle Enterprise Manager for MySQL Database target page.
The following topics are described:
The MySQL Database target page enables you to gather monitoring and metrics information specific to MySQL targets.
To open the Oracle Enterprise Manager for MySQL Database target page, do the following:
Select All Targets from the Targets menu.
The All Targets page is displayed.
Expand the Databases section of the Target Type section and select MySQL Database.
The list of available MySQL Database targets is filtered to display only the available MySQL hosts.
Select the target.
The MySQL Database target page is displayed:
The MySQL Database menu on the MySQL Target page contains standard Enterprise Manager Cloud Control menu choices and several menus customized for the MySQL Database plug-in. Only those menus customized for the MySQL Database plug-in are described here:
Performance sub-menu: opens graph pages for the following:
Connections
Statements
InnoDB Buffer Pool
InnoDB File I/O
Tables/Rows
Query Cache
For more information, see Chapter 3, Performance Pages.
This section describes the regions displayed on the MySQL Database target homepage. The following regions are available:
The Availability History region displays the MySQL Database's uptime in graph format. It displays the uptime as a percentage of time monitored and as a bar chart.
The Configuration Summary region displays the configuration details of the monitored host. It displays such details as the hostname, MySQL version, and so on.
The following configuration elements are listed:
Host: hostname of the MySQL instance.
Version: the MySQL version.
TCP/IP Port: the TCP/IP port used by the MySQL instance.
UNIX Socket: the UNIX domain socket, if available.
Base Directory: the installation directory of the MySQL instance.
Data Directory: the data directory of the MySQL instance.
Temp Directory: the temp directory of the MySQL instance.
Up Since: time since the management agent first made contact with the MySQL instance.
Monitored By: the full name of the Monitoring Agent's host machine.
The Connections region displays the number of connections (y-axis) over time (x-axis).
The graphs are broken down into the following:
Cached connections.
Current connections.
Running connections.
If you hover the cursor over one of the lines, a tooltip displays details of the connection type.
The Transaction Activity region displays the number of transactions (y-axis) over time (x-axis).
The graph is broken down into the following transaction types:
Commit (Delta)
Rollback (Delta)
Release Savepoint (Delta)
Rollback to Savepoint (Delta)
Savepoint (Delta)
Begin (Delta)
If you hover the cursor over one of the lines, a tooltip displays details of the transaction type.
The Row Activity region displays the number of row-based actions (y-axis) over time (x-axis).
The graph is broken down into the following transaction types:
Write (Delta)
Rows Read Via Scan (Delta)
Rows Read Via Indexes (Delta)
Update (Delta)
Delete (Delta)
The InnoDB Buffer Pool Usage (pages) region displays the usage in a pie chart.
The following metrics are displayed as percentages:
Buffer Pool Pages Data
Buffer Pool Pages Dirty
Buffer Pool Pages Free
Buffer Pool Pages Misc.
The response Time (ms) region graphs the response time of the Availability Ping metric, in milliseconds. This metric performs a full connection to the database and executes a ping statement for each availability check.
The Statement Activity region displays the number of statement executions (x-axis) over time (y-axis). The following statement types are graphed:
All Deletes (Delta)
All Inserts (Delta)
All Replaces (Delta)
All Updates (Delta)
Call Procedure (Delta)
Select (Delta)
