E-AS: How to Remove IPC Resources for an Application Server Domain or Process Scheduler (Doc ID 625186.1)

Last updated on MAY 15, 2023

Applies to:

Goal

Starting with Tuxedo 8.1, you no longer have to run ipcrmall.sh/killipc.sh to remove IPC resources for all application server and process scheduler domains. With these commands you would have to stop all application server and process scheduler domains that are started by the same user.

IPC resources are operating system resources, such as message queues, shared memory, and semaphores. When a BEA Tuxedo application shuts down properly with the tmshutdown command, all IPC resources used by the BEA Tuxedo application are removed from the system. In some cases, however, an application may fail to shut down properly and stray IPC resources may remain on the system. When this happens, it may not be possible to reboot the application.

One way to address this problem is to remove IPC resources with a script that invokes the system IPCS command and scan for all IPC resources owned by a particular user account. However, with this method, it is difficult to distinguish among different sets of IPC resources; some may belong to a particular BEA Tuxedo application; and others to applications unrelated to the BEA Tuxedo system. It is important to be able to distinguish among these sets of resources; unintentional removal of IPC resources can severely damage an application.

The BEA Tuxedo IPC tool (that is, the tmipcrm command) enables you to remove IPC resources allocated by the BEA Tuxedo system (that is, for core BEA Tuxedo and Workstation components only) in an active application.

The command to remove IPC resources, tmipcrm, resides in TUXDIR/bin. This command reads the binary configuration file (TUXCONFIG), and attaches to the bulletin board using the information in this file. tmipcrm works only on the local server machine; it does not clean up IPC resources on remote machines in a BEA Tuxedo configuration.
 

Solution

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