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#!/sbin/runscript
# Copyright 1999-2011 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $
depend() {
need net localmount
before netmount
}
check_modules_config() {
local MODULES=$1
local CONFIGS=$2
local MODULE
local retval=0
for MODULE in ${MODULES}; do
if ! ls -1 /sys/module | egrep -q "^${MODULE}$"; then
retval=1
fi
done
if [ ${retval} -eq 1 ] && [ -e /proc/config.gz ]; then
retval=0
for MODULE in ${CONFIGS}; do
if ! gzip -dc /proc/config.gz | egrep -q "^CONFIG_${MODULE}=y$"; then
retval=1
fi
done
fi
return ${retval}
}
check_modules() {
check_modules_config "ocfs2_dlmfs ocfs2 ocfs2_dlm ocfs2_nodemanager" "OCFS2_FS OCFS2_FS_O2CB" && check_modules_config configfs CONFIGFS_FS && return 0
if ! egrep -q '\s*ocfs2\s*$' /proc/filesystems || ! egrep -q '\s*ocfs2_dlmfs\s*$' /proc/filesystems; then
ewarn "One or more required modules are not loaded."
ewarn "Make sure you have "
ewarn " - placed ocfs, dlmfs and configfs into /etc/modules.autoload.d/kernel-2.6 or built directly into the kernel."
ewarn "For a (in)complete documentation, read /usr/share/doc/ocfs-<version>/INSTALL.GENTOO.bz2"
fi
return 1
}
check_pseudofs() {
local retval=0
local HASMOUNT="mount -l -t"
if [ -z "`${HASMOUNT} configfs`" ] ; then
retval=1
fi
if [ -z "`${HASMOUNT} ocfs2_dlmfs`" ] ; then
retval=1
fi
if [ ${retval} -eq 1 ]; then
ewarn "One or more pseudo-filesystes are not mounted."
ewarn "Make sure you have following lines in your /etc/fstab:"
ewarn "none /sys/kernel/config configfs defaults 0 0"
ewarn "none /sys/kernel/dlm ocfs2_dlmfs defaults 0 0"
fi
return ${retval}
}
start() {
check_modules || return $?
check_pseudofs || return $?
einfo "Starting OCFS2 cluster"
for cluster in ${OCFS2_CLUSTER}; do
ebegin " - ${cluster}"
/sbin/o2cb_ctl -H -n ${cluster} -t cluster -a online=yes >/dev/null 2>&1
eend $?
# Some heartbeat tweaks to prevent self-fencing quite so much during heavy load.
# http://oss.oracle.com/projects/ocfs2/dist/documentation/ocfs2_faq.html
# How long to wait before a node is considered dead from lack of network activity.
echo $OCFS2_IDLE_TIMEOUT_MS > /sys/kernel/config/cluster/${cluster}/idle_timeout_ms
# How often we should attempt to send heartbeats.
echo $OCFS2_KEEPALIVE_DELAY_MS > /sys/kernel/config/cluster/${cluster}/keepalive_delay_ms
echo $OCFS2_RECONNECT_DELAY_MS > /sys/kernel/config/cluster/${cluster}/reconnect_delay_ms
# How many interations before a node is considered dead from lack of IO activity.
# (dead_threshold - 1) * 2s
echo $OCFS2_DEAD_THRESHOLD > /sys/kernel/config/cluster/${cluster}/heartbeat/dead_threshold
done
sleep 2
}
stop() {
# Shamelesly stolen from netmount
local ret
ebegin "Unmounting OCFS2 filesystems"
[ -z "$(umount -art ocfs2 2>&1)" ]
ret=$?
eend ${ret} "Failed to simply unmount filesystems"
[ ${ret} -eq 0 ] && return 0
declare -a siglist=( "TERM" "KILL" "KILL" )
local retry=0
local remaining="go"
while [ -n "${remaining}" -a ${retry} -lt 3 ]
do
remaining="$(awk '$3 ~ /'ocfs2'/ { if ($2 != "/") print $2 }' /proc/mounts | sort -r)"
IFS=$'\n'
set -- ${remaining//\\040/ }
unset IFS
[ -z "${remaining}" ] && break
ebegin $'\t'"Unmounting ocfs2 filesystems (retry #$((retry+1)))"
/bin/fuser -k -${siglist[$((retry++))]} -m "$@" &>/dev/null
sleep 5
umount "$@" &>/dev/null
eend $? $'\t'"Failed to unmount filesystems"
done
einfo "Stopping OCFS2 cluster"
for cluster in ${OCFS_CLUSTERS}; do
ebegin " - ${cluster}"
/sbin/o2cb_ctl -H -n ${cluster} -t cluster -a online=no >/dev/null 2>&1
eend $?
done
}
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