I need to run two instances of Apache on the same SuSE based server but there
is something very basic I don't manage. In order to run to servers
I'll need two pid files
to hold the two process ids. So the first thing I tried was to change
the pidfile for the existing server.
I shut down Apache and the changed /etc/init.d/apache2
the following line:
: ${pidfile:=/var/run/httpd2.pid}
to:
: ${pidfile:=/var/run/httpd2b.pid}
The problem is that after starting the web server using
/etc/init.d/apache2 start
it still created the /var/run/httpd2.pid file and NOT the
/var/run/httpd2b.pid file.
When I tried to stop the web server:
/etc/init.d/apache2 stop
I got:
"Shutting down httpd2 (not running) "
As an experience, then I renamed
/var/run/httpd2.pid to /var/run/httpd2b.pid
and tried to shut down the server again
/etc/init.d/apache2 stop
It printed:
Shutting down httpd2 (waiting for all children to terminate)
and then it got stuck for quite a while (20-30 sec maybe)
In the end it stopped the server but also left the
/var/run/httpd2b.pid file.
I am quite lost as looking at the /etc/init.d/apache2 script I don't know
where does it take the old name from. Not even where does it create
the pid file.
regards
Gabor
ps. This is the /etc/init.d/apache2 script:
---------------------------------------------------
#!/bin/sh
#
# Copyright (c) 1996, 1997, 1998 S.u.S.E. GmbH
# Copyright (c) 1998, 1999, 2000, 2001 SuSE GmbH
# Copyright (c) 2002, 2003, (2004?) SuSE Linux AG
# Copyright (c) 2004(?), 2005, 2006, 2007, 2008 SUSE Linux Products GmbH
#
# Authors: Rolf Haberrecker <apa...@suse.de>, 2001
# Peter Poeml <apa...@suse.de>, 2002, 2003, 2004, 2005, 2006,
2007, 2008
#
#
# /etc/init.d/apache2
#
### BEGIN INIT INFO
# Provides: apache apache2 httpd
# Required-Start: $local_fs $remote_fs $network
# Should-Start: $named $time postgresql sendmail mysql ypclient
dhcp radiusd
# Should-Stop: $named $time postgresql sendmail mysql ypclient
dhcp radiusd
# Required-Stop: $local_fs $remote_fs $network
# Default-Start: 3 5
# Default-Stop: 0 1 2 6
# Short-Description: Apache 2.2 HTTP Server
# Description: Start the Apache HTTP daemon
### END INIT INFO
pname=apache2
: ${sysconfdir:=/etc/$pname}
: ${apache_link:=/usr/sbin/httpd2}
: ${sysconfig_apache:=/etc/sysconfig/$pname}
: ${pidfile:=/var/run/httpd2b.pid}
: ${logdir:=/var/log/$pname}
: ${homedir:=/var/lib/$pname}
#
# load the configuration
#
#
# Note about ulimits:
# if you want to set ulimits, e.g. to increase the max number of open
file handle,
# or to allow core files, you can do so by editing /etc/sysconfig/apache2 and
# simply write the ulimit commands into that file.
# Example:
# ulimit -n 16384
# ulimit -H -n 16384
# ulimit -c unlimited
# See the output of "help ulimit" in the bash, or "man 1 ulimit".
#
test -s /etc/rc.status && . /etc/rc.status && rc_reset
. /usr/share/$pname/load_configuration
export ${!APACHE_*}
httpd_conf=${APACHE_HTTPD_CONF:-$sysconfdir/httpd.conf}
apache_bin=$(/usr/share/$pname/find_mpm 2>/dev/null)
test -L $apache_link && apache_bin=$(readlink $apache_link)
if [ -z "$APACHE_MPM" ]; then
APACHE_MPM=${apache_bin##*-}
fi
if ! [ -x $apache_bin ]; then
echo >&2 ${warn}$apache_bin-$APACHE_MPM is not a valid httpd2 binary.
echo >&2 Check your APACHE_MPM setting in /etc/sysconfig/$pname. $norm
rc_failed 5
rc_status -v1
rc_exit
fi
# a proper home should be set, otherwise the server might end up
# with HOME=/root and some script might try to use that
HOME=$homedir
get_server_flags()
{
unset server_flags
case "$action" in startssl) server_flags="-DSSL";; esac
for i in $APACHE_SERVER_FLAGS; do
case $i in
-D) ;;
-D*) server_flags="$server_flags $i";;
*) server_flags="$server_flags -D$i";;
esac
done
}
action="$1"
case "$action" in
stop|try-restart|*status*|probe)
;;
*)
shift; get_server_flags
${get_module_list_done:=false} || /usr/share/$pname/get_module_list
&& export get_module_list_done=true
${get_includes:=false} || /usr/share/$pname/get_includes && export
get_includes_done=true
;;
esac
#
# main part
#
case "$action" in
start*)
if [ -e $pidfile ]; then
$0 status &>/dev/null
ret=$?
if [ $ret = 1 ]; then
echo "Warning: found stale pidfile (unclean
shutdown?)"
elif [ $ret = 0 ]; then
echo "Apache is already running ($pidfile)"
rc_failed $ret
rc_status -v1
rc_exit
fi
fi
echo -n "Starting httpd2 (${APACHE_MPM:-${apache_bin#*-}}) "
cmdline=$(echo $apache_bin -f $httpd_conf $server_flags "$@")
if eval $cmdline -t > $logdir/rc$pname.out 2>&1 ; then
export -n ${!APACHE_*}
eval startproc -f -t ${APACHE_START_TIMEOUT:-2} $cmdline
ret=$?
if test -t 1 && stty -a 2>/dev/null | grep -q -- -echo\ ; then
# this means that apache was still waiting for a
passphrase to be entered
stty echo 2>/dev/null
echo;echo
echo >&2 An SSL passphrase has not been entered within
${APACHE_START_TIMEOUT:-<not set>} seconds.
echo >&2 To increase this timeout, adjust
APACHE_START_TIMEOUT in
$sysconfig_apache .
# this surely means that apache won't start, despite it
looked good
to startproc
killall $apache_bin
echo >&2 "Trying to start the server without SSL (-D
NOSSL)."
$0 start "$@" -D NOSSL
# rc_failed 1
# rc_status -v1
# rc_exit
else
rc_failed $ret
rc_status -v
fi
else
if [ "$link" = "$base" ] ; then
cat $logdir/rc$pname.out
echo >&2
echo >&2 The command line was:
echo >&2 $cmdline
echo >&2
else
echo -e -n "\nsee $logdir/rc$pname.out for details\n";
fi
rc_failed 1
rc_status -v1
fi
;;
stop)
echo -n "Shutting down httpd2 "
if [ ! -f $pidfile -a -f $pidfile.rpmsave ]; then mv
$pidfile.rpmsave $pidfile; fi
if ! [ -f $pidfile ]; then
echo -n "(not running)"
else
pid=$(<$pidfile)
kill -TERM $pid 2>/dev/null
case $? in
1) echo -n "(not running)";;
0) # wait until the processes are gone (the parent is the
last one)
echo -n "(waiting for all children to terminate) "
for ((wait=0; wait<120; wait++)); do
if test -f $pidfile; then
usleep 500000
continue
fi
if ! test -f /proc/$pid/exe; then
break
fi
if test "$(readlink /proc/$pid/exe
2>/dev/null)" = $apache_bin; then
usleep 500000
else
break
fi
done
;;
esac
fi
rc_status -v
;;
stop-graceful)
echo "Shutting down httpd2 gracefully (SIGWINCH)"
if ! [ -f $pidfile ]; then
echo -n "(not running)"
else
pid=$(<$pidfile)
kill -WINCH $pid 2>/dev/null
case $? in
1) echo -n "(not running)";;
0) # wait until the pidfile is gone. The parent
stays there, but closes the listen ports.
echo -n "(waiting for parent to close listen
ports and remove pidfile) "
for ((wait=0; wait<120; wait++)); do
if test -f $pidfile; then
usleep 500000
continue
else
break
fi
done
;;
esac
fi
rc_status -v
;;
try-restart)
## Do a restart only if the service was active before.
## Note: try-restart is now part of LSB (as of 1.9).
## RH has a similar command named condrestart.
$0 status
if test $? = 0; then
$0 restart
else
rc_reset # Not running is not a failure.
fi
# Remember status and be quiet
rc_status
;;
restart)
$0 configtest "$@" || { rc_failed $?; rc_exit; }
if $0 status &>/dev/null; then
$0 stop
fi
$0 start "$@"
# Remember status and be quiet
rc_status
;;
restart-hup)
$0 configtest "$@" || { rc_failed $?; rc_exit; }
if $0 status &>/dev/null; then
echo -n "Restarting httpd2 (SIGHUP)"
kill -HUP $(<$pidfile) || return=$rc_failed
else
$0 start "$@"
fi
# Remember status and be quiet
rc_status -v
;;
restart-graceful)
$0 configtest "$@" || { rc_failed $?; rc_exit; }
if $0 status &>/dev/null; then
$0 stop-graceful "$@"
$0 start "$@"
else
$0 start "$@"
fi
# Remember status and be quiet
rc_status
;;
reload|force-reload|graceful)
echo -n "Reload httpd2 (graceful restart)"
cmdline=$(echo $apache_bin -f $httpd_conf $server_flags "$@")
if eval $cmdline -t &> $logdir/rc$pname.out; then
killproc -USR1 $apache_bin || return=$rc_failed
rc_status -v
else
if [ "$link" = "$base" ] ; then
echo -e -n "\n\n"
cat $logdir/rc$pname.out
echo >&2
echo >&2 The command line was:
echo >&2 $cmdline
echo >&2
else
echo -e -n "\nsee $logdir/rc$pname.out for details\n";
fi
rc_failed 6
rc_status -v1
fi
;;
status)
if [ ! -f $pidfile -a -f $pidfile.rpmsave ]; then mv
$pidfile.rpmsave $pidfile; fi
echo -n "Checking for httpd2: "
# we don't use checkproc here since it is confused when we exchange
the binaries
if ! [ -f $pidfile ]; then
# not running
rc_failed 3
elif [ -s $pidfile -a -d /proc/$(<$pidfile) ]; then
# running
:
else
# stale pid file
rc_failed 1
#rm -f $pidfile
fi
rc_status -v
;;
probe)
## Optional: Probe for the necessity of a reload,
## give out the argument which is required for a reload.
for i in $httpd_conf \
$APACHE_CONF_INCLUDE_FILES \
$APACHE_CONF_INCLUDE_DIRS
do
if [ $i -nt $pidfile ]; then
echo reload
break
fi
done
;;
conf*|test|syntax|check)
cmdline=$(echo $apache_bin -f $httpd_conf $server_flags "$@")
eval $cmdline -t
rc_failed $?
rc_exit
;;
extr*)
cmdline=$(echo $apache_bin -f $httpd_conf $server_flags "$@")
out=$(su - nobody -c "$cmdline" 2>&1)
case $out in
*make_sock:\ could\ not\ bind\ to\ address*) echo Syntax: OK;
rc_failed=0;;
*) echo Syntax: NOT OK:; echo $out; rc_failed=1;;
esac
rc_exit
;;
server-status)
apache2ctl status
;;
full-server-status|fullstatus)
apache2ctl fullstatus
;;
*)
cat >&2 <<-EOF
Usage: $0 <command> <server flags>
where <command> is one of:
start - start httpd
startssl - start httpd with -DSSL
stop - stop httpd (sending SIGTERM to parent)
try-restart - stop httpd and if this succeeds (i.e. if
it was running before), start it again.
status - check whether httpd is running
restart - stop httpd if running; start httpd
restart-graceful - stop httpd gracefully if running; start
httpd
reload|graceful - do a graceful restart by sending a
SIGUSR1, or
start if not running
stop-graceful - stop httpd (sending SIGWINCH to parent)
configtest - do a configuration syntax test
extreme-configtest - try to run httpd as nobody (detects more
errors
by actually loading the configuration, but
cannot
read SSL certificates)
probe - probe for the necessity of a reload, give
out the argument which is required for a
reload.
(by comparing conf files with pidfile
timestamp)
full-server-status - dump a full status screen; requires lynx
or w3m
and mod_status enabled
server-status - dump a short status screen; requires lynx
or w3m
and mod_status enabled
help - this screen
optional server flags are passed through to httpd.
EOF
exit 1
esac
# Inform the caller not only verbosely and set an exit status.
rc_exit
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