# Mark Huang <mlhuang@cs.princeton.edu>
# Copyright (C) 2005 The Trustees of Princeton University
#
-# $Id$
-#
PATH=/sbin:/usr/sbin:$PATH
# Record PID
if [ -f $PIDFILE ] ; then
if kill -0 `cat $PIDFILE` >/dev/null 2>&1 ; then
- logger -p info -t pl_mom "$0 (`cat $PIDFILE`) already running"
- exit 1
+ logger -p info -t pl_mom "$0 (`cat $PIDFILE`) already running"
+ exit 1
fi
fi
echo $$ > $PIDFILE
shopt -s nullglob
for file in /etc/vservers/*.conf pl_admin.conf site_admin.conf ; do
- slice=$(basename ${file%*.conf})
- if grep -q "$slice:\!\!" /etc/shadow ; then
- sed -i -e "s/$slice:\!\!:\(.*\)/$slice:*:\1/" /etc/shadow
- fi
+ slice=$(basename ${file%*.conf})
+ if grep -q "$slice:\!\!" /etc/shadow ; then
+ sed -i -e "s/$slice:\!\!:\(.*\)/$slice:*:\1/" /etc/shadow
+ fi
done
}
# keep essential services running
restart_services() {
- for service in sshd pl_sshd swapmon nm proper ; do
- echo "* Checking $service"
- status=$(service $service status)
- if [ $? -ne 0 ] || echo $status 2>&1 | grep -q stopped ; then
- echo "* Restarting $service"
- service $service start
- fi
+ for service in sshd pl_sshd swapmon nm fprobe-ulog codemux; do
+ chkconfig --list $service | grep -q 3:on || continue
+ echo "* Checking $service"
+ status=$(service $service status)
+ if [ $? -ne 0 ] || echo $status 2>&1 | grep -q stopped ; then
+ echo "* Restarting $service"
+ service $service start
+ fi
done
}
-# keep netflow running
-restart_netflow() {
- echo "* Checking netflow"
- echo "sudo /sbin/service netflow restart" | su - pl_netflow
- if [ $? -ne 0 ] ; then
- echo "* Restarting netflow"
- service netflow-init start
- vserver pl_netflow start
- echo "sudo /sbin/service netflow restart" | su - pl_netflow
- fi
-}
-
-# GPG keys are installed in /etc/pki/rpm-gpg by both the Boot Manager
-# during initial installation, and by PlanetLabConf during daily
-# updates. NodeUpdate imports the keys into the RPM database before
-# running yum daily. vserver-reference copies and imports the keys
-# into the reference images and system slices daily. The only parts of
-# this process that are actually necessary, are the Boot Manager and
-# vserver-reference. However, we do not want to force a re-install of
-# all nodes, and we do not want to force an update of
-# vserver-reference, so in the meantime, PlanetLabConf and NodeUpdate
-# take care of getting the keys installed and imported in /, and this
-# script takes care of getting them installed in the reference images
-# and system slices, until we can get a new vserver-reference image
-# pushed out.
-update_vserver_reference() {
- echo "* Updating VServer reference"
-
- shopt -s nullglob
-
- VROOTS="/vservers/vserver-reference /vservers/.vcache/* /vservers/${PLC_SLICE_PREFIX}_*"
-
- # Copy configuration files from host to slices
- for file in \
- /etc/hosts /etc/resolv.conf /etc/yum.conf /etc/planetlab/node_id \
- /etc/planetlab/plc_config* /etc/planetlab/php/* \
- /etc/pki/rpm-gpg/* ; do
- if [ -r $file ] ; then
- for vroot in $VROOTS ; do
- install -D -m 644 $file $vroot/$file
- done
- fi
- done
-
- # (Re)install GPG signing keys
- if [ -d /etc/pki/rpm-gpg ] ; then
- for vroot in $VROOTS ; do
- chroot $vroot rpm --allmatches -e gpg-pubkey || :
- chroot $vroot rpm --import /etc/pki/rpm-gpg/* || :
- done
- fi
-}
-
# kill all the processes running in slice contexts
vkillall() {
vps -A | awk '(int($2) > 1) { system("vkill -c " $2 " -s 9 " $1); }'
# unmounts all the /proc and /dev/pts mounts in each vserver
tries=10
while grep -q /vservers/ /proc/mounts && [ $tries -gt 0 ] ; do
- tries=$(($tries -1))
- # arizona_stork seems to generate some weird mount points of the form
- # /vservers/arizona_stork/tmp/0.886421543959\040(deleted) that should be
- # /vservers/arizona_stork/tmp/0.886421543959
- awk '(/vservers\//) { sub(/\\040.*$/, ""); print "Unmounting " $2; system("umount " $2); }' /proc/mounts
+ tries=$(($tries -1))
+ awk '(/vservers\//) { sub(/\\040.*$/, ""); print "Unmounting " $2; system("umount " $2); }' /proc/mounts
done
}
mkdir -p /vservers/.vtmp
tmp=$(mktemp /vservers/.vtmp/fixit.XXXXXX)
if [ $? -eq 0 ] ; then
- rm -f $tmp
- return 0
+ rm -f $tmp
+ return 0
fi
# kill all processes running in slice contexts
# stop vcached
pidfile=/var/run/vcached.pid
if [ -r "$pidfile" ] ; then
- kill $(cat $pidfile)
+ kill $(cat $pidfile)
fi
touch $pidfile
# unmounts /vservers
if umount /vservers ; then
# install expect if necessary
- if ! rpm -q expect ; then
- yum -y install expect
- fi
+ if ! rpm -q expect ; then
+ yum -y install expect
+ fi
# tell expect to hit the 'y' key every time fsck asks
- expect -c 'set timeout 3600; spawn fsck /dev/mapper/planetlab-vservers; expect "<y>?" { send "y\r"; exp_continue }'
+ expect -c 'set timeout 3600; spawn fsck /dev/mapper/planetlab-vservers; expect "<y>?" { send "y\r"; exp_continue }'
# blow away the vserver cache
- rm -rf /vservers/.vcache/*
+ rm -rf /vservers/.vcache/*
# XXX re-mount /vservers
- # mount /vservers
+ # mount /vservers
- # shutdown instead to avoid clearing disk quotas
- shutdown -r now "/vservers filesystem repaired, rebooting"
+ # shutdown instead to avoid clearing disk quotas
+ shutdown -r now "/vservers filesystem repaired, rebooting"
else
- echo "Unable to unmount /vservers!" >&2
+ echo "Unable to unmount /vservers!" >&2
fi
# allow vcached to run again
grep " \[priv\]" |
sort | uniq -c |
while read instances sshd slice priv ; do
- # kill all old instances
- if [ $instances -gt 10 ] ; then
- ps -C sshd -o pid=,start_time=,command= |
- grep "$slice \[priv\]" |
- while read pid start_time command ; do
- start_time=$(date -d "$start_time" +%s)
- min=$(date -d "6 hours ago" +%s)
- if [ $start_time -lt $min ] ; then
- echo "* Killing $slice sshd pid $pid"
- kill -9 $pid
- fi
- done
- fi
+ # kill all old instances
+ if [ $instances -gt 10 ] ; then
+ ps -C sshd -o pid=,start_time=,command= |
+ grep "$slice \[priv\]" |
+ while read pid start_time command ; do
+ start_time=$(date -d "$start_time" +%s)
+ min=$(date -d "6 hours ago" +%s)
+ if [ $start_time -lt $min ] ; then
+ echo "* Killing $slice sshd pid $pid"
+ kill -9 $pid
+ fi
+ done
+ fi
done
}
kill_nm_inslice(){
pids=$(vps aux | awk '$1 != "root" && $14 == "/usr/share/NodeManager/nm.py" {print $2}')
for pid in $pids ; do
- line=$(vps aux | grep $pid)
- echo Killing PID $pid
- echo $line
- kill -9 $pid
- done
+ line=$(vps aux | grep $pid)
+ echo NM found in slice. Killing PID $pid
+ echo $line
+ vkill -9 $pid
+ done
+}
+
+kill_nonroot_nm(){
+ # For whatever reason, Some NM's, after fork and chcontext...don't chcontext. Kill them.
+ pids=$(ps aux | awk '$1 != "root" && $12 == "/usr/share/NodeManager/nm.py" {print $2}')
+ for pid in $pids ; do
+ line=$(ps aux | grep $pid)
+ echo NM found not belonging to root. Killing PID $pid
+ echo $line
+ kill -9 $pid
+ done
+}
+
+kill_multi_nm(){
+ # if there is more than one nm running around, kill them, then nm restart
+ pids=$(ps aux | awk '$1 == "root" && $12 == "/usr/share/NodeManager/nm.py" {print $2}')
+ i=0
+ for pid in $pids ; do
+ i=$[$i+1]
+ done
+ if [ $i -gt 1 ] ; then
+ # stop nm
+ echo "More than 1 NM found belonging to root. Restarting NM."
+ /etc/init.d/nm stop
+ pids=$(ps aux | awk '$1 == "root" && $12 == "/usr/share/NodeManager/nm.py" {print $2}')
+ for pid in $pids ; do
+ kill -9 $pid
+ done
+ /etc/init.d/nm start
+ fi
+}
+
+fix_rpm() {
+ echo "* Checking for stuck rpm processes"
+
+ rpm_count=`pgrep -f "rpm" | wc -l`
+
+ if [[ $rpm_count -ge 6 ]]; then
+ echo "* $rpm_count rpm processes found"
+
+ # kill rpm processes, attempt up to 10 times and then give up
+ try_count=0
+ rpm_count=`pgrep "rpm|yum" | wc -l`
+ while [[ $rpm_count -gt 0 ]]; do
+ echo "* killing rpm/yum processes"
+ killall -9 rpm rpmd rpmq rpmk yum
+ sleep 1
+ rpm_count=`pgrep "rpm|yum" | wc -l`
+ try_count=`expr $try_count + 1`
+ if [[ $try_count -ge 10 ]]; then
+ echo "* failed to kill rpm processes"
+ return
+ fi
+ done
+
+ # remove lock files
+ echo "* deleting rpm lock files"
+ rm -f /var/lib/rpm/__*
+
+ # rebuild rpm database
+ echo "* rebuilding rpm database"
+ rpm --rebuilddb
+
+ echo "* rpm repair sequence complete"
+
+ fi
}
# XXX kill zombie slices
-# XXX reboot if boot state changes
+run restart_services
+
+run fix_rpm
+
+run kill_nonroot_nm
run kill_nm_inslice
+run kill_multi_nm
+
run fix_vservers
run fix_etc_shadow
-run restart_services
-
-run restart_netflow
-
run kill_duplicate_ssh
-
-run update_vserver_reference
git://git.onelab.eu / mom.git / blobdiff