Remove ipcclean utility command --- didn't work on all Unixes and on
Windows. Users should use their operating system tools instead.
This commit is contained in:
Bruce Momjian
parent
fe11719c2e
commit
39627b1ae6
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@ -1,5 +1,5 @@
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<!--
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$PostgreSQL: pgsql/doc/src/sgml/ref/allfiles.sgml,v 1.72 2007/08/21 21:08:47 tgl Exp $
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$PostgreSQL: pgsql/doc/src/sgml/ref/allfiles.sgml,v 1.73 2008/03/27 17:24:16 momjian Exp $
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PostgreSQL documentation
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Complete list of usable sgml source files in this directory.
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-->
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@ -145,7 +145,6 @@ Complete list of usable sgml source files in this directory.
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<!entity dropuser system "dropuser.sgml">
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<!entity ecpgRef system "ecpg-ref.sgml">
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<!entity initdb system "initdb.sgml">
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<!entity ipcclean system "ipcclean.sgml">
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<!entity pgConfig system "pg_config-ref.sgml">
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<!entity pgControldata system "pg_controldata.sgml">
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<!entity pgCtl system "pg_ctl-ref.sgml">
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@ -1,70 +0,0 @@
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<!--
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$PostgreSQL: pgsql/doc/src/sgml/ref/ipcclean.sgml,v 1.14 2007/01/31 23:26:04 momjian Exp $
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PostgreSQL documentation
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-->
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<refentry id="APP-IPCCLEAN">
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<refmeta>
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<refentrytitle id="APP-IPCCLEAN-TITLE"><application>ipcclean</application></refentrytitle>
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<manvolnum>1</manvolnum>
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<refmiscinfo>Application</refmiscinfo>
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</refmeta>
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<refnamediv>
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<refname>ipcclean</refname>
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<refpurpose>remove shared memory and semaphores from a failed <productname>PostgreSQL</productname> server</refpurpose>
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</refnamediv>
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<indexterm zone="app-ipcclean">
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<primary>ipcclean</primary>
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</indexterm>
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<refsynopsisdiv>
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<cmdsynopsis>
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<command>ipcclean</command>
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</cmdsynopsis>
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</refsynopsisdiv>
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<refsect1 id="R1-APP-IPCCLEAN-1">
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<title>Description</title>
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<para>
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<command>ipcclean</command> removes all shared memory segments and
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semaphore sets owned by the current user. It is intended to be
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used for cleaning up after a crashed
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<productname>PostgreSQL</productname> server (<xref
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linkend="app-postgres">). Note that immediately restarting the
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server will also clean up shared memory and semaphores, so this
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command is of little real utility.
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</para>
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<para>
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Only the database administrator should execute this program as it
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can cause bizarre behavior (i.e., crashes) if run during multiuser
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execution. If this command is executed while a server is running,
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the shared memory and semaphores allocated by that server will be
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deleted, which would have rather severe consequences for that
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server.
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</para>
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</refsect1>
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<refsect1>
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<title>Notes</title>
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<para>
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This script is a hack, but in the many years since it was written,
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no one has come up with an equally effective and portable solution.
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Since <command>postgres</command> can now clean up by
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itself, it is unlikely that <command>ipcclean</command> will be
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improved upon in the future.
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</para>
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<para>
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The script makes assumptions about the output format of the
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<command>ipcs</command>
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utility which might not be true across different operating systems.
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Therefore, it might not work on your particular OS. It's wise to
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look at the script before trying it.
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</para>
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</refsect1>
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</refentry>
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@ -1,4 +1,4 @@
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<!-- $PostgreSQL: pgsql/doc/src/sgml/reference.sgml,v 1.65 2007/08/21 21:08:47 tgl Exp $ -->
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<!-- $PostgreSQL: pgsql/doc/src/sgml/reference.sgml,v 1.66 2008/03/27 17:24:16 momjian Exp $ -->
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<part id="reference">
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<title>Reference</title>
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@ -211,7 +211,6 @@
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</partintro>
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&initdb;
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&ipcclean;
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&pgControldata;
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&pgCtl;
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&pgResetxlog;
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@ -8,7 +8,7 @@
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*
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/utils/init/miscinit.c,v 1.166 2008/01/03 21:23:15 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/utils/init/miscinit.c,v 1.167 2008/03/27 17:24:16 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -841,8 +841,7 @@ CreateLockFile(const char *filename, bool amPostmaster,
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id1, id2),
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errhint("If you're sure there are no old "
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"server processes still running, remove "
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"the shared memory block with "
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"the command \"ipcclean\", \"ipcrm\", "
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"the shared memory block "
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"or just delete the file \"%s\".",
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filename)));
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}
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@ -5,7 +5,7 @@
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# Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
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# Portions Copyright (c) 1994, Regents of the University of California
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#
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# $PostgreSQL: pgsql/src/bin/Makefile,v 1.52 2008/03/18 16:24:50 petere Exp $
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# $PostgreSQL: pgsql/src/bin/Makefile,v 1.53 2008/03/27 17:24:16 momjian Exp $
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#
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#-------------------------------------------------------------------------
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@ -13,7 +13,7 @@ subdir = src/bin
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top_builddir = ../..
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include $(top_builddir)/src/Makefile.global
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DIRS = initdb ipcclean pg_ctl pg_dump \
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DIRS = initdb pg_ctl pg_dump \
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psql scripts pg_config pg_controldata pg_resetxlog
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ifeq ($(PORTNAME), win32)
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DIRS+=pgevent
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@ -1,32 +0,0 @@
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#-------------------------------------------------------------------------
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#
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# Makefile for src/bin/ipcclean
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#
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# Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
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# Portions Copyright (c) 1994, Regents of the University of California
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#
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# $PostgreSQL: pgsql/src/bin/ipcclean/Makefile,v 1.22 2008/01/01 19:45:55 momjian Exp $
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#
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#-------------------------------------------------------------------------
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subdir = src/bin/ipcclean
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top_builddir = ../../..
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include $(top_builddir)/src/Makefile.global
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all: ipcclean
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ipcclean: ipcclean.sh
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cp $< $@
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chmod a+x $@
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install: all installdirs
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$(INSTALL_SCRIPT) ipcclean '$(DESTDIR)$(bindir)/ipcclean'
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installdirs:
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$(mkinstalldirs) '$(DESTDIR)$(bindir)'
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uninstall:
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rm -f '$(DESTDIR)$(bindir)/ipcclean'
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clean distclean maintainer-clean:
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rm -f ipcclean
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@ -1,116 +0,0 @@
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#!/bin/sh
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#
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# $PostgreSQL: pgsql/src/bin/ipcclean/ipcclean.sh,v 1.18 2006/03/03 21:52:37 momjian Exp $
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#
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CMDNAME=`basename $0`
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if [ "$1" = '-?' -o "$1" = "--help" ]; then
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echo "$CMDNAME cleans up shared memory and semaphores from aborted PostgreSQL"
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echo "backends."
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echo
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echo "Usage:"
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echo " $CMDNAME"
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echo
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echo "Note: Since the utilities underlying this script are very different"
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echo "from platform to platform, chances are that it might not work on"
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echo "yours. If that is the case, please write to <pgsql-bugs@postgresql.org>"
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echo "so that your platform can be supported in the future."
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exit 0
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fi
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# test for running as root
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ISROOT="N"
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if id -u >/dev/null 2>&1
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then if [ `id -u` -eq 0 ]
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then ISROOT="Y"
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fi
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elif # only check $LOGNAME if $USER is not set
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[ "$USER" = 'root' -o \( ! "$USER" -a "$LOGNAME" = 'root' \) ]
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then ISROOT="Y"
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fi
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if [ "$ISROOT" = "Y" ]
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then
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(
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echo "$CMDNAME: cannot be run as root" 1>&2
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echo "Please log in (using, e.g., \"su\") as the (unprivileged) user that" 1>&2
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echo "owned the server process." 1>&2
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) 1>&2
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exit 1
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fi
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EffectiveUser=`id -n -u 2>/dev/null || whoami 2>/dev/null`
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#-----------------------------------
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# List of platform-specific hacks
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# Feel free to add yours here.
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#-----------------------------------
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#
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# This is based on RedHat 5.2.
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#
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if [ `uname` = 'Linux' ]; then
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did_anything=
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if ps x | grep -s '[p]ostmaster' >/dev/null 2>&1 ; then
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echo "$CMDNAME: a postmaster is still running" 1>&2
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exit 1
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fi
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# shared memory
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for val in `ipcs -m -p | grep '^[0-9]' | awk '{printf "%s:%s:%s\n", $1, $3, $4}'`
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do
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save_IFS=$IFS
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IFS=:
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set X $val
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shift
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IFS=$save_IFS
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ipcs_shmid=$1
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ipcs_cpid=$2
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ipcs_lpid=$3
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# Note: We can do -n here, because we know the platform.
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echo -n "Shared memory $ipcs_shmid ... "
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# Don't do anything if process still running.
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# (This check is conceptually phony, but it's
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# useful anyway in practice.)
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ps hj $ipcs_cpid $ipcs_lpid >/dev/null 2>&1
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if [ "$?" -eq 0 ]; then
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echo "skipped; process still exists (pid $ipcs_cpid or $ipcs_lpid)."
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continue
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fi
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# try remove
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ipcrm shm $ipcs_shmid
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if [ "$?" -eq 0 ]; then
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did_anything=t
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else
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exit
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fi
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done
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# semaphores
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for val in `ipcs -s -c | grep '^[0-9]' | awk '{printf "%s\n", $1}'`; do
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echo -n "Semaphore $val ... "
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# try remove
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ipcrm sem $val
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if [ "$?" -eq 0 ]; then
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did_anything=t
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else
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exit
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fi
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done
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[ -z "$did_anything" ] && echo "$CMDNAME: nothing removed" && exit 1
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exit 0
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fi # end Linux
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# This is the original implementation. It seems to work
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# on FreeBSD, SunOS/Solaris, HP-UX, IRIX, and probably
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# some others.
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ipcs | egrep '^m .*|^s .*' | egrep "$EffectiveUser" | \
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awk '{printf "ipcrm -%s %s\n", $1, $2}' '-' | sh
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