Add legacy action scripts, fix oom_score_adj usage
This commit is contained in:
Tom Lane
parent
b937d0f13c
commit
67b80785ce
16
initdb.sh
Executable file
16
initdb.sh
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@ -0,0 +1,16 @@
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#!/bin/sh
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#
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# Legacy action script for "service postgresql initdb"
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# Find the name of the service
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SERVICE_NAME=$(basename $(dirname "$0"))
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if [ x"$SERVICE_NAME" = x. ]
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then
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SERVICE_NAME=postgresql
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fi
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echo Hint: the preferred way to do this is now '"postgresql-setup initdb"' >&2
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/usr/bin/postgresql-setup initdb "$SERVICE_NAME"
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exit $?
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52
postgresql-oom_score_adj.patch
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52
postgresql-oom_score_adj.patch
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Back-patch upstream's 9.2 patch to add support for setting oom_score_adj.
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diff -Naur postgresql-9.1.4.orig/src/backend/postmaster/fork_process.c postgresql-9.1.4/src/backend/postmaster/fork_process.c
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--- postgresql-9.1.4.orig/src/backend/postmaster/fork_process.c 2012-05-31 19:07:09.000000000 -0400
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+++ postgresql-9.1.4/src/backend/postmaster/fork_process.c 2012-07-14 17:55:42.911859485 -0400
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@@ -68,12 +68,40 @@
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* process sizes *including shared memory*. (This is unbelievably
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* stupid, but the kernel hackers seem uninterested in improving it.)
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* Therefore it's often a good idea to protect the postmaster by
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- * setting its oom_adj value negative (which has to be done in a
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- * root-owned startup script). If you just do that much, all child
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+ * setting its oom_score_adj value negative (which has to be done in a
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+ * root-owned startup script). If you just do that much, all child
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* processes will also be protected against OOM kill, which might not
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- * be desirable. You can then choose to build with LINUX_OOM_ADJ
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- * #defined to 0, or some other value that you want child processes to
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- * adopt here.
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+ * be desirable. You can then choose to build with
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+ * LINUX_OOM_SCORE_ADJ #defined to 0, or to some other value that you
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+ * want child processes to adopt here.
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+ */
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+#ifdef LINUX_OOM_SCORE_ADJ
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+ {
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+ /*
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+ * Use open() not stdio, to ensure we control the open flags. Some
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+ * Linux security environments reject anything but O_WRONLY.
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+ */
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+ int fd = open("/proc/self/oom_score_adj", O_WRONLY, 0);
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+
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+ /* We ignore all errors */
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+ if (fd >= 0)
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+ {
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+ char buf[16];
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+ int rc;
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+
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+ snprintf(buf, sizeof(buf), "%d\n", LINUX_OOM_SCORE_ADJ);
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+ rc = write(fd, buf, strlen(buf));
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+ (void) rc;
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+ close(fd);
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+ }
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+ }
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+#endif /* LINUX_OOM_SCORE_ADJ */
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+
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+ /*
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+ * Older Linux kernels have oom_adj not oom_score_adj. This works
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+ * similarly except with a different scale of adjustment values.
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+ * If it's necessary to build Postgres to work with either API,
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+ * you can define both LINUX_OOM_SCORE_ADJ and LINUX_OOM_ADJ.
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*/
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#ifdef LINUX_OOM_ADJ
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{
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@ -53,7 +53,7 @@ Summary: PostgreSQL client programs
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Name: postgresql
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%global majorversion 9.1
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Version: 9.1.4
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Release: 2%{?dist}
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Release: 3%{?dist}
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# The PostgreSQL license is very similar to other MIT licenses, but the OSI
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# recognizes it as an independent license, so we do as well.
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@ -83,6 +83,8 @@ Source7: ecpg_config.h
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Source8: README.rpm-dist
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Source9: postgresql-setup
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Source10: postgresql.service
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Source11: initdb.sh
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Source12: upgrade.sh
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Source14: postgresql.pam
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Source15: postgresql-bashprofile
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@ -90,6 +92,7 @@ Source15: postgresql-bashprofile
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Patch1: rpm-pgsql.patch
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Patch2: postgresql-logging.patch
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Patch3: postgresql-perl-rpath.patch
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Patch4: postgresql-oom_score_adj.patch
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BuildRequires: perl(ExtUtils::MakeMaker) glibc-devel bison flex gawk
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BuildRequires: perl(ExtUtils::Embed), perl-devel
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@ -301,6 +304,7 @@ benchmarks.
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%patch1 -p1
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%patch2 -p1
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%patch3 -p1
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%patch4 -p1
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# We used to run autoconf here, but there's no longer any real need to,
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# since Postgres ships with a reasonably modern configure script.
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@ -330,8 +334,8 @@ CFLAGS="${CFLAGS:-%optflags}" ; export CFLAGS
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# Strip out -ffast-math from CFLAGS....
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CFLAGS=`echo $CFLAGS|xargs -n 1|grep -v ffast-math|xargs -n 100`
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# Add LINUX_OOM_ADJ=0 to ensure child processes reset postmaster's oom_adj
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CFLAGS="$CFLAGS -DLINUX_OOM_ADJ=0"
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# Add LINUX_OOM_SCORE_ADJ=0 to ensure child processes reset postmaster's oom_score_adj
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CFLAGS="$CFLAGS -DLINUX_OOM_SCORE_ADJ=0"
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# let's try removing this kluge, it may just be a workaround for bz#520916
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# # use -O1 on sparc64 and alpha
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# %%ifarch sparc64 alpha
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@ -473,6 +477,10 @@ install -m 755 postgresql-check-db-dir $RPM_BUILD_ROOT%{_bindir}/postgresql-chec
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install -d $RPM_BUILD_ROOT%{_unitdir}
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install -m 644 %{SOURCE10} $RPM_BUILD_ROOT%{_unitdir}/postgresql.service
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install -d $RPM_BUILD_ROOT/usr/libexec/initscripts/legacy-actions/postgresql
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install -m 755 %{SOURCE11} $RPM_BUILD_ROOT/usr/libexec/initscripts/legacy-actions/postgresql/initdb
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install -m 755 %{SOURCE12} $RPM_BUILD_ROOT/usr/libexec/initscripts/legacy-actions/postgresql/upgrade
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%if %pam
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install -d $RPM_BUILD_ROOT/etc/pam.d
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install -m 644 %{SOURCE14} $RPM_BUILD_ROOT/etc/pam.d/postgresql
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@ -830,6 +838,8 @@ rm -rf $RPM_BUILD_ROOT
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%files server -f server.lst
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%defattr(-,root,root)
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%{_unitdir}/postgresql.service
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%dir /usr/libexec/initscripts/legacy-actions/postgresql
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/usr/libexec/initscripts/legacy-actions/postgresql/*
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%if %pam
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%config(noreplace) /etc/pam.d/postgresql
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%endif
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@ -927,6 +937,14 @@ rm -rf $RPM_BUILD_ROOT
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%endif
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%changelog
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* Sat Jul 14 2012 Tom Lane <tgl@redhat.com> 9.1.4-3
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- Update code to use oom_score_adj not oom_adj, thereby suppressing
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whining in the kernel log
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- Add "legacy action" scripts to support "service postgresql initdb" and
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"service postgresql upgrade" in a now-approved fashion (requires a
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recent version of initscripts to work)
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Resolves: #800416
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* Mon Jun 11 2012 Petr Pisar <ppisar@redhat.com> - 9.1.4-2
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- Perl 5.16 rebuild
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16
upgrade.sh
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16
upgrade.sh
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@ -0,0 +1,16 @@
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#!/bin/sh
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#
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# Legacy action script for "service postgresql upgrade"
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# Find the name of the service
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SERVICE_NAME=$(basename $(dirname "$0"))
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if [ x"$SERVICE_NAME" = x. ]
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then
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SERVICE_NAME=postgresql
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fi
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echo Hint: the preferred way to do this is now '"postgresql-setup upgrade"' >&2
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/usr/bin/postgresql-setup upgrade "$SERVICE_NAME"
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exit $?
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