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"postgres" has long been officially preferred over "postmaster" as the
name of the program to invoke to run the server. Some example scripts
and code comments still used the latter. Change those.
Discussion: https://www.postgresql.org/message-id/flat/ece84b69-8f94-8b88-925f-64207cb3a2f0@enterprisedb.com
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Since those scripts haven't worked at all in macOS releases of 2014
and later, and aren't the recommended way to do it on any release
since 2005, there seems little point carrying them into the future.
It's very unlikely that anyone would be installing PG >= 11 on a
macOS release where they couldn't use contrib/start-scripts/macos/.
Discussion: https://postgr.es/m/31338.1510763554@sss.pgh.pa.us
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The scripts in contrib/start-scripts/osx don't work at all on macOS
10.10 (Yosemite) or later, because they depend on SystemStarter which
Apple deprecated long ago and removed in 10.10. Add a new subdirectory
contrib/start-scripts/macos with scripts that use the newer launchd
infrastructure.
Since this problem is independent of which Postgres version you're using,
back-patch to all supported branches.
Discussion: https://postgr.es/m/31338.1510763554@sss.pgh.pa.us
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By default, $PGUSER has permission to unlink $PGLOG. If $PGUSER
replaces $PGLOG with a symbolic link, the server will corrupt the
link-targeted file by appending log messages. Since these scripts open
$PGLOG as root, the attack works regardless of target file ownership.
"make install" does not install these scripts anywhere. Users having
manually installed them in the past should repeat that process to
acquire this fix. Most script users have $PGLOG writable to root only,
located in $PGDATA. Just before updating one of these scripts, such
users should rename $PGLOG to $PGLOG.old. The script will then recreate
$PGLOG with proper ownership.
Reviewed by Peter Eisentraut. Reported by Antoine Scemama.
Security: CVE-2017-12172
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Backpatch to all supported versions, where applicable, to make backpatching
of future fixes go more smoothly.
Josh Soref
Discussion: https://www.postgresql.org/message-id/CACZqfqCf+5qRztLPgmmosr-B0Ye4srWzzw_mo4c_8_B_mtjmJQ@mail.gmail.com
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The different actions in pg_ctl had different defaults for -w and -W,
mostly for historical reasons. Most users will want the -w behavior, so
make that the default.
Remove the -w option in most example and test code, so avoid confusion
and reduce verbosity. pg_upgrade is not touched, so it can continue to
work with older installations.
Reviewed-by: Beena Emerson <memissemerson@gmail.com>
Reviewed-by: Ryan Murphy <ryanfmurphy@gmail.com>
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Various example and test code used -m fast explicitly, but since it's
the default, this can be omitted now or should be replaced by a better
example.
pg_upgrade is not touched, so it can continue to operate with older
installations.
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I don't know what the global standard might be, but at least adjacent
code should use the same whitespace.
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Missed a "$" in what was meant to be a variable substitution. Careless
mistake in commit f23425fa950fec3aff458de117037c9caadbc35c.
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bug #10528
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Per a suggestion from Christoph Berg.
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Arrange for postmaster child processes to respond to two environment
variables, PG_OOM_ADJUST_FILE and PG_OOM_ADJUST_VALUE, to determine whether
they reset their OOM score adjustments and if so to what. This is superior
to the previous design involving #ifdef's in several ways. The behavior is
now available in a default build, and both ends of the adjustment --- the
original adjustment of the postmaster's level and the subsequent
readjustment by child processes --- can now be controlled in one place,
namely the postmaster launch script. So it's no longer necessary for the
launch script to act on faith that the server was compiled with the
appropriate options. In addition, if someone wants to use an OOM score
other than zero for the child processes, that doesn't take a recompile
anymore; and we no longer have to cater separately to the two different
historical kernel APIs for this adjustment.
Gurjeet Singh, somewhat revised by me
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Backpatch to 9.3.
Per suggestion from Gavan Schneider
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This reverts commit 87306184580c9c49717b00d48a2f9e717f21e0a8. The
behavior in certain cases is still being debated, and it's too late to
solve this before beta.
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Undo thinko in commit 87306184580c9c49717b00d48a2f9e717f21e0a8.
Per bug #8098 from Catherine Devlin.
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This changes the behavior of the start and stop actions to exit
successfully if the server was already started or stopped.
This changes the default behavior of the start action: Before, if the
server was already running, it would print a message and succeed. Now,
that situation will result in an error. When running in idempotent
mode, no message is printed and pg_ctl exits successfully.
It was considered to just make the idempotent behavior the default and
only option, but pg_upgrade needs the old behavior.
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The simplest way to handle this is just to copy-and-paste the relevant
code block in fork_process.c, so that's what I did. (It's possible that
something more complicated would be useful to packagers who want to work
with either the old or the new API; but at this point the number of such
people is rapidly approaching zero, so let's just get the minimal thing
done.) Update relevant documentation as well.
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Sidar Lopez, per bug #6310, with some additional improvements by me.
Back-patch to 9.0, where the issue was introduced.
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Kevin Grittner
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settings to prevent the postmaster from being OOM-killed on Linux systems.
Alex Hunsaker and Tom Lane
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script.
To do this, have pg_ctl pass down its parent shell's PID in an environment
variable PG_GRANDPARENT_PID, and teach CreateLockFile() to disregard that PID
as a false match if it finds it in postmaster.pid. This allows us to cope
with one level of postgres-owned shell process even with pg_ctl in the way,
so it's just as safe as starting the postmaster directly. You still have to
be careful about how you write the initscript though.
Adjust the comments in contrib/start-scripts/ to not deprecate use of
pg_ctl. Also, fix the ROTATELOGS option in the OSX script, which was
indulging in exactly the sort of unsafe coding that renders this fix
pointless :-(. A pipe inside the "sudo" will probably result in more
than one postgres-owned process hanging around.
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the PATH responsive to the installation prefix, which was the apparent
intent of the previous edit, but not well executed.
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Les Hill
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directory.
Mark Cotner and David Fetter
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must be stale. Tweak example startup scripts to not use pg_ctl but launch
the postmaster directly, thereby ensuring that only the postmaster's direct
parent shell will be a postgres-owned process. In combination these should
fix the longstanding problem of the postmaster sometimes refusing to start
during reboot because it thinks the old lockfile is not stale.
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script for Mac OS X. I added calls to utilize the bundled apache
rotatelogs script in the DB startup for log rotation. Also modified
startup parameters file to allow using the "SystemStarter" utility to
start/stop/restart postgres with a rotating log file.
The script credits David Wheeler, 2002. I wrote him a message about
the changes an he suggested I post them here. I explain some of the
changes below.
Not sure how to submit the changes. I have 3 files, "PostgreSQL"
script, "StartupParameters.plist" file, "pg_startupscript.diff" file.
The diff file was run against the original "PostgreSQL" script file.
I'll try attaching them to this message. If they get filtered I can
resend if needed.
Thanks.
Ray A.
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1) Changed the "Provides" parameter in StartupParameters.plist to
"PostgreSQL" from "postgres database" simply for ease of typing. It
seems that the SystemStarter utility uses the "Provides" value if you
want to control the script. This way I did not have to enclose it in
quotes on commandline. The modified StartupParameters.plist is now an
XML document also.
2) For the startup script I added 2 user modifiable variables:
# do you want to rotate the log files, 1=true 0=false
ROTATELOGS=1
# logfile rotate in seconds
ROTATESEC="604800"
I also added a non modifiable variable:
# The apache log rotation utility
LOGUTIL="/usr/sbin/rotatelogs"
I modified the StartService and RestartService functions to execute
the new commands if the user wants log rotation.
Ray Aspeitia
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Slawomir Sudnik
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Add "-l $PGLOG" for restart --- Darko Prenosil
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in the year. This version has only the two files required by the Darwin
startup bundle design. Plus the sh script now uses Darwin-standard
functions to start up PostgreSQL, and it checks for the presence of a
variable in /etc/hostconfig, as do other Darwin startup scripts.
I suggest that a new directory be created,
contrib/start-scripts/darwin, and that these two files be put into it.
Folks who want to use the script can read the comments inside it to
figure out how to use it.
David Wheeler
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Rene Pijlman
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'su -l'.
Reported by <VASQUEZ_JASON@LILLY.COM>.
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contrib/init.d start script. Place into more aptly named directory. Maybe
we could add scripts for other platforms here later.
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