rc script to handle ocfsv2 cluster

ocfs2 (text/plain), 2.47 KB, created by Pierre Colot on 2008-11-29 22:18:05 UTC

#!/sbin/runscript
# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-fs/ocfs2-tools/files/ocfs2.init,v 1.1 2006/07/20 05:13:14 dberkholz Exp $

depend() {
	need net localmount
	before netmount 
}

start() {
	
	einfo "Starting OCFS2 cluster"
	for cluster in ${OCFS2_CLUSTER}; do
		ebegin " - ${cluster}"
		/sbin/o2cb start ${cluster}  2>&1
		eend $?

		# TODO integrate it in /sbin/o2cb
		# 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"

        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 ${OCFS2_CLUSTER}; do
		ebegin " - ${cluster}"
		/sbin/o2cb stop ${cluster}  2>&1
		eend $?
	done
}

status() {
	
	einfo "Status OCFS2 cluster"
	for cluster in ${OCFS2_CLUSTER}; do
		ebegin " - ${cluster}"
		/sbin/o2cb status ${cluster}  2>&1
		eend $?
	done
	sleep 2
}