4. Once the client and the dispatcher know where to find each other, they communicate
directly. The Listener is no longer required. The client sends each work
request directly to the dispatcher.
5. The dispatcher places the client??™s request in the request queue in the SGA.
6. The next available shared server process reads the request from the request
queue and does the work.
7. The shared server places the results for the client??™s request in the response queue
for the dispatcher that originally submitted the request.
8. The dispatcher reads the results from its queue.
9. The dispatcher sends the results to the client.
Figure 3-7 illustrates the steps for using the shared servers. Network traffic appears
as dotted lines.
Figure 3-7. Connecting with the Oracle Net Listener (shared servers)
76 | Chapter 3: Installing and Running Oracle
Session memory for shared server processes versus dedicated server processes
There is a concept in Oracle known as session memory or state. State information is
basically data that describes the current status of a session in Oracle.
Pages:
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184