Limiting the Number of Shared Server Sessions
The SHARED_SERVER_SESSIONS initialization parameter specifies the maximum number of concurrent shared server user sessions.
Setting this parameter, which is a dynamic parameter, lets you reserve database sessions for dedicated servers. This in turn ensures that administrative tasks that require dedicated servers, such as backing up or recovering the database, are not preempted by shared server sessions.
To limit the number of shared server sessions:
Set the
SHARED_SERVER_SESSIONSinitialization parameter.
This parameter has no default value. If it is not specified, the system can create shared server sessions as needed, limited by the SESSIONS initialization parameter.
Protecting Shared Memory
The CIRCUITS initialization parameter sets a maximum limit on the number of virtual circuits that can be created in shared memory. This parameter has no default. If it is not specified, then the system can create circuits as needed, limited by the DISPATCHERS initialization parameter and system resources.
To protect shared memory by limiting the number of virtual circuits that can be created in shared memory:
Set the
CIRCUITSinitialization parameter.
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