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