Advantages and disadvantages of Session?

Following are the basic advantages and disadvantages of using session. I have describe in details with each type of session at later point of time.

Advantages:

• It helps maintain user state and data all over the application.
• It is easy to implement and we can store any kind of object.
• Stores client data separately.
• Session is secure and transparent from the user.

Disadvantages:

• Performance overhead in case of large volumes of data/user, because session data is stored in server memory.
• Overhead involved in serializing and de-serializing session data, because in the case of StateServerand SQLServer session modes, we need to serialize the objects before storing them.

Besides these, there are many advantages and disadvantages of session that are based on the session type. I have discussed all of them in the respective sections below.