14.2. The DB2 Engine Dispatchable Units
Each circle shown in Figure 14.1 represents a DB2 process. The DB2 engine is where these processes live; hence these processes are called DB2 Engine Dispatchable Units (EDUs). Therefore, a coordinator agent, a page cleaner, and a subagent are all EDUs.
The EDUs are implemented as processes on Linux/UNIX platforms and as threads on Windows platforms. Unless explicitly indicated, we use the term process in this chapter to refer to both processes on Linux/UNIX and threads on Windows.
Figure 14.2 shows the hierarchy for some main DB2 EDUs.
Figure 14.2. The main DB2 EDUs
Figure 14.2 shows ...