B.4 Two Director Processes

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:  B.4 Two Director Processes

¤ Refer to Section 1.5 for information on the WEBES processes.

With all WEBES products installed, desta start starts two instances of the java executable (java on UNIX, java.exe on Windows). The first instance contains the DESTA Director and all WEBES services except the Crash Analyzer service (CCAT). The Director spawns this crash analyzer as the second instance, which is a subprocess of the Director.

¤ Because the DeCOR analysis engine (a C++ library) does not support multiple simultaneous databases and is not re-entrant, each service that wishes to use DeCOR separately must run in a separate process. There are two services that use the DeCOR library – Compaq Analyze's event analyzer, and CCAT's crash analyzer. The Compaq Analyze service runs in the main process with the Director, and CCAT's analyzer is spawned in a separate process at startup. All services started by the Director continue to run for the lifetime of the java processes. If CCAT is not installed, there is no second instance.

8 On OpenVMS

– There may be two WEBES processes, but they are labelled differently in the SHOW SYSTEM output. The first process is labelled DESTA DIRECTOR. The second is normally SYSTEM_1 for example, if the SYSTEM user starts the Director. The numeric suffix may vary. WEBES processes are labelled USERNAME_n, where USERNAME is the user that started it, and n is the nth process started by that user.