Question - What Do I Do If There Are No Free Database Sessions Left, And No New Database Application Can Log On To The Database?
Answer -
The general parameter MAXUSERTASKS defines the maximum number of user tasks that can be active at the same time, and therefore determines the maximum number of database sessions.
When this number is reached, no further users can log on to this database instance. You then need to increase the parameter. If you assign a very high value to MAXUSERTASKS, then the database system requires a lot of address room, especially in the case of local communication using shared memory.