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Diffstat (limited to 'doc/man/ipcclean.1')
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diff --git a/doc/man/ipcclean.1 b/doc/man/ipcclean.1 new file mode 100644 index 00000000000..5fe533cc891 --- /dev/null +++ b/doc/man/ipcclean.1 @@ -0,0 +1,36 @@ +.\" This is -*-nroff-*- +.\" XXX standard disclaimer belongs here.... +.\" $Header: /cvsroot/pgsql/doc/man/Attic/ipcclean.1,v 1.1.1.1 1996/08/18 22:14:24 scrappy Exp $ +.TH IPCCLEAN UNIX 11/05/95 Postgres95 Postgres95 +.SH NAME +ipcclean \(em clean up shared memory and semaphores from aborted backends +.SH SYNOPSIS +.BR "ipcclean" +.SH DESCRIPTION +.IR Ipcclean +cleans up shared memory and semaphore space from aborted backends by +deleting all instances owned by user \*(lqpostgres\*(rq. Only the DBA +should execute this program as it can cause bizarre behavior (i.e., +crashes) if run during multi-user execution. This program should be +executed if messages such as +.BR "semget: No space left on device" +are encountered when starting up the +.IR postmaster +or the backend server. +.SH BUGS +If this command is executed while a +.IR postmaster +is running, the shared memory and semaphores allocated by the +.IR postmaster +will be deleted. This will result in a general failure of the +backends servers started by that +.IR postmaster . +.PP +This script is a hack, but in the many years since it was written, no +one has come up with an equally effective and portable solution. +Suggestions are welcome. +.PP +The script makes assumption about the format of output of the +.BR ipcs +utility which may not be true across different operating systems. +Therefore, it may not work on your particular OS. |