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4.9 Session Manager

This tool is used to manage the connections made to the database.

images/session.png

The session tool consists of a toolbar, a list displaying the connections currently open to the database and at the bottom a tabbed pane where you can investigate a specific connection to the database.

Toolbar

The toolbar contains the following commands.

Refresh
Refresh the view from the database.
Filter
Here you can define which sessions to display. You can choose to see only sessions of specific users, only active sessions, all sessions, all sessions except background or all sessions except system ones.
Enable timed statistics
Enable timed statistics for the currently selected session.
Disable timed statistics
Disable timed statistics for the currently selected session.
Disconnect session
Disconnect the currently selected session. You will be asked if you allow the current transaction to finish before kicking the session out or not.
Refresh time
A list where you can select the interval between automatic updates.
Select all sessions
TODO
Deselect all sessions
TODO
Filter
TODO
Change connection
Change the connection to administrate storage for.

Inspecting a session

When you select a session the following information is available in the tabbed pane at the bottom of the window.

Current statement
The statement that is currently being executed (see sgastatement for information about the statement).
Long ops
TODO
Statistics
The session statistics available for the session. You will get more statistics if you enable timed statistics through the toolbar. There are also two charts displaying waitstates and I/O for the selected session.
Wait events
TODO
Connection info
Information about the connection and versions of the components used.
Pending locks
What locks this session is currently waiting for.
Locked objects
The objects currently locked by this session.
Accessing
TODO
Previous statement
The next to last statement being executed by the session (see sgastatement for information about the statement).
Open cursors
This contains a list of all the cursors currently held open by the session. When a statement is selected in the list you can investigate it using the normal SGA statement view.