Page Menu
Home
ClusterLabs Projects
Search
Configure Global Search
Log In
Files
F4832805
clvm.in
No One
Temporary
Actions
View File
Edit File
Delete File
View Transforms
Subscribe
Mute Notifications
Flag For Later
Award Token
Size
10 KB
Referenced Files
None
Subscribers
None
clvm.in
View Options
#!@BASH_SHELL@
#
# Copyright (c) 2014 David Vossel <davidvossel@gmail.com>
# All Rights Reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of version 2 of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it would be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#
# Further, this software is distributed without any warranty that it is
# free of the rightful claim of any third person regarding infringement
# or the like. Any license provided herein, whether implied or
# otherwise, applies only to this software file. Patent licenses, if
# any, provided herein do not apply to combinations of this program with
# other software, or any other product whatsoever.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
#
#######################################################################
# Initialization:
: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
. ${OCF_FUNCTIONS_DIR}/ocf-directories
#######################################################################
meta_data() {
cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="clvm">
<version>1.0</version>
<longdesc lang="en">
This agent manages the clvmd daemon.
</longdesc>
<shortdesc lang="en">clvmd</shortdesc>
<parameters>
<parameter name="with_cmirrord" unique="0" required="0">
<longdesc lang="en">
Start with cmirrord (cluster mirror log daemon).
</longdesc>
<shortdesc lang="en">activate cmirrord</shortdesc>
<content type="boolean" default="false" />
</parameter>
<parameter name="daemon_options" unique="0">
<longdesc lang="en">
Options to clvmd. Refer to clvmd.8 for detailed descriptions.
</longdesc>
<shortdesc lang="en">Daemon Options</shortdesc>
<content type="string" default="-d0"/>
</parameter>
<parameter name="activate_vgs" unique="0">
<longdesc lang="en">
Whether or not to activate all cluster volume groups after starting
the clvmd or not. Note that clustered volume groups will always be
deactivated before the clvmd stops regardless of what this option
is set to.
</longdesc>
<shortdesc lang="en">Activate volume groups</shortdesc>
<content type="boolean" default="true"/>
</parameter>
</parameters>
<actions>
<action name="start" timeout="90s" />
<action name="stop" timeout="90s" />
<action name="monitor" timeout="90s" interval="30s" depth="0" />
<action name="meta-data" timeout="10s" />
<action name="validate-all" timeout="20s" />
</actions>
</resource-agent>
END
}
#######################################################################
: ${OCF_RESKEY_daemon_options:="-d0"}
: ${OCF_RESKEY_activate_vgs:="true"}
sbindir=$HA_SBIN_DIR
if [ -z $sbindir ]; then
sbindir=/usr/sbin
fi
DAEMON="clvmd"
CMIRROR="cmirrord"
DAEMON_PATH="${sbindir}/clvmd"
CMIRROR_PATH="${sbindir}/cmirrord"
LVMCONF="${sbindir}/lvmconf"
LOCK_FILE="/var/lock/subsys/$DAEMON"
# attempt to detect where the vg tools are located
# for some reason this isn't consistent with sbindir
# in some distros.
vgtoolsdir=$(dirname $(which vgchange 2> /dev/null) 2> /dev/null)
if [ -z "$vgtoolsdir" ]; then
vgtoolsdir="$sbindir"
fi
LVM_VGCHANGE=${vgtoolsdir}/vgchange
LVM_VGDISPLAY=${vgtoolsdir}/vgdisplay
LVM_VGSCAN=${vgtoolsdir}/vgscan
# Leaving this in for legacy. We do not want to advertize
# the abilty to set options in the systconfig exists, we want
# to expand the OCF style options as necessary instead.
[ -f /etc/sysconfig/cluster ] && . /etc/sysconfig/cluster
[ -f /etc/sysconfig/$DAEMON ] && . /etc/sysconfig/$DAEMON
CLVMD_TIMEOUT="90"
if [ -n "$OCF_RESKEY_CRM_meta_timeout" ]; then
CLVMD_TIMEOUT=$(($OCF_RESKEY_CRM_meta_timeout/1000))
fi
clvmd_usage()
{
cat <<END
usage: $0 {start|stop|monitor|validate-all|meta-data}
Expects to have a fully populated OCF RA-compliant environment set.
END
}
clvmd_validate()
{
# check_binary will exit with OCF_ERR_INSTALLED
# when binary is missing
check_binary "pgrep"
check_binary $DAEMON_PATH
if ocf_is_true $OCF_RESKEY_with_cmirrord; then
check_binary $CMIRROR_PATH
fi
if [ "$__OCF_ACTION" != "monitor" ]; then
check_binary "killall"
check_binary $LVM_VGCHANGE
check_binary $LVM_VGDISPLAY
check_binary $LVM_VGSCAN
fi
# Future validation checks here.
return $OCF_SUCCESS
}
check_process()
{
local binary=$1
local pidfile="${HA_RSCTMP}/${binary}-${OCF_RESOURCE_INSTANCE}.pid"
local pid
ocf_log debug "Checking status for ${binary}."
if [ -e "$pidfile" ]; then
cat /proc/$(cat $pidfile)/cmdline 2>/dev/null | grep -a "${binary}" > /dev/null 2>&1
if [ $? -eq 0 ];then
# shortcut without requiring pgrep to search through all procs
return $OCF_SUCCESS
fi
fi
pid=$(pgrep ${binary})
case $? in
0)
ocf_log info "PID file (pid:${pid} at $pidfile) created for ${binary}."
echo "$pid" > $pidfile
return $OCF_SUCCESS;;
1)
rm -f "$pidfile" > /dev/null 2>&1
ocf_log info "$binary is not running"
return $OCF_NOT_RUNNING;;
*)
rm -f "$pidfile" > /dev/null 2>&1
ocf_exit_reason "Error encountered detecting pid status of $binary"
return $OCF_ERR_GENERIC;;
esac
}
clvmd_status()
{
local rc
local mirror_rc
clvmd_validate
if [ $? -ne $OCF_SUCCESS ]; then
ocf_exit_reason "Unable to monitor, Environment validation failed."
return $?
fi
check_process $DAEMON
rc=$?
mirror_rc=$rc
if ocf_is_true $OCF_RESKEY_with_cmirrord; then
check_process $CMIRROR
mirror_rc=$?
fi
# If these ever don't match, return error to force recovery
if [ $mirror_rc -ne $rc ]; then
return $OCF_ERR_GENERIC
fi
return $rc
}
# NOTE: replace this with vgs, once display filter per attr is implemented.
clustered_vgs() {
${LVM_VGDISPLAY} 2>/dev/null | awk 'BEGIN {RS="VG Name"} {if (/Clustered/) print $1;}'
}
wait_for_process()
{
local binary=$1
local timeout=$2
local count=0
ocf_log info "Waiting for $binary to exit"
while [ $count -le $timeout ]; do
check_process $binary
if [ $? -eq $OCF_NOT_RUNNING ]; then
ocf_log info "$binary terminated"
return $OCF_SUCCESS
fi
sleep 1
count=$((count+1))
done
return $OCF_ERR_GENERIC
}
time_left()
{
local end=$1
local default=$2
local now=$SECONDS
local result=0
result=$(( $end - $now ))
if [ $result -lt $default ]; then
return $default
fi
return $result
}
clvmd_stop()
{
local LVM_VGS
local rc=$OCF_SUCCESS
local end=$(( $SECONDS + $CLVMD_TIMEOUT ))
clvmd_status
if [ $? -eq $OCF_NOT_RUNNING ]; then
return $OCF_SUCCESS
fi
check_process $DAEMON
if [ $? -ne $OCF_NOT_RUNNING ]; then
LVM_VGS="$(clustered_vgs)"
if [ -n "$LVM_VGS" ]; then
ocf_log info "Deactivating clustered VG(s):"
ocf_run ${LVM_VGCHANGE} -anl $LVM_VGS
if [ $? -ne 0 ]; then
ocf_exit_reason "Failed to deactivate volume groups, cluster vglist = $LVM_VGS"
return $OCF_ERR_GENERIC
fi
fi
ocf_log info "Signaling $DAEMON to exit"
killall -TERM $DAEMON
if [ $? != 0 ]; then
ocf_exit_reason "Failed to signal -TERM to $DAEMON"
return $OCF_ERR_GENERIC
fi
wait_for_process $DAEMON $CLVMD_TIMEOUT
rc=$?
if [ $rc -ne $OCF_SUCCESS ]; then
ocf_exit_reason "$DAEMON failed to exit"
return $rc
fi
rm -f $LOCK_FILE
fi
check_process $CMIRROR
if [ $? -ne $OCF_NOT_RUNNING ] && ocf_is_true $OCF_RESKEY_with_cmirrord; then
local timeout
ocf_log info "Signaling $CMIRROR to exit"
killall -INT $CMIRROR
time_left $end 10; timeout=$?
wait_for_process $CMIRROR $timeout
rc=$?
if [ $rc -ne $OCF_SUCCESS ]; then
killall -KILL $CMIRROR
time_left $end 10; timeout=$?
wait_for_process $CMIRROR $(time_left $end 10)
rc=$?
fi
fi
return $rc
}
start_process()
{
local binary_path=$1
local opts=$2
check_process "$(basename $binary_path)"
if [ $? -ne $OCF_SUCCESS ]; then
ocf_log info "Starting $binary_path: "
ocf_run $binary_path $opts
rc=$?
if [ $rc -ne 0 ]; then
ocf_exit_reason "Failed to launch $binary_path, exit code $rc"
exit $OCF_ERR_GENERIC
fi
fi
return $OCF_SUCCESS
}
clvmd_activate_all()
{
if ! ocf_is_true "$OCF_RESKEY_activate_vgs"; then
ocf_log info "skipping vg activation, activate_vgs is set to $OCF_RESKEY_activate_vgs"
return $OCF_SUCCESS
fi
# Activate all volume groups by leaving the
# "volume group name" parameter empty
ocf_run ${LVM_VGCHANGE} -aay
if [ $? -ne 0 ]; then
ocf_log info "Failed to activate VG(s):"
clvmd_stop
return $OCF_ERR_GENERIC
fi
return $OCF_SUCCESS
}
clvmd_start()
{
local rc=0
local CLVMDOPTS="-T${CLVMD_TIMEOUT} $OCF_RESKEY_daemon_options"
clvmd_validate
if [ $? -ne $OCF_SUCCESS ]; then
ocf_exit_reason "Unable to start, Environment validation failed."
return $?
fi
# systemd drop-in to stop process before storage services during
# shutdown/reboot
if systemd_is_running ; then
systemd_drop_in "99-clvmd" "After" "blk-availability.service"
fi
clvmd_status
if [ $? -eq $OCF_SUCCESS ]; then
ocf_log debug "$DAEMON already started"
clvmd_activate_all
return $?;
fi
# autoset locking type to clusted when lvmconf tool is available
if [ -x "$LVMCONF" ]; then
$LVMCONF --enable-cluster > /dev/null 2>&1
fi
# if either of these fail, script will exit OCF_ERR_GENERIC
if ocf_is_true $OCF_RESKEY_with_cmirrord; then
start_process $CMIRROR_PATH
fi
start_process $DAEMON_PATH "$CLVMDOPTS"
# Refresh local cache.
#
# It's possible that new PVs were added to this, or other VGs
# while this node was down. So we run vgscan here to avoid
# any potential "Missing UUID" messages with subsequent
# LVM commands.
# The following step would be better and more informative to the user:
# 'action "Refreshing VG(s) local cache:" ${LVM_VGSCAN}'
# but it could show warnings such as:
# 'clvmd not running on node x-y-z Unable to obtain global lock.'
# and the action would be shown as FAILED when in reality it didn't.
# Ideally vgscan should have a startup mode that would not print
# unnecessary warnings.
${LVM_VGSCAN} > /dev/null 2>&1
touch $LOCK_FILE
clvmd_activate_all
clvmd_status
return $?
}
case $__OCF_ACTION in
meta-data) meta_data
exit $OCF_SUCCESS;;
start) clvmd_start;;
stop) clvmd_stop;;
monitor) clvmd_status;;
validate-all) clvmd_validate;;
usage|help) clvmd_usage;;
*) clvmd_usage
exit $OCF_ERR_UNIMPLEMENTED;;
esac
rc=$?
ocf_log debug "${OCF_RESOURCE_INSTANCE} $__OCF_ACTION : $rc"
exit $rc
File Metadata
Details
Attached
Mime Type
text/plain
Expires
Sun, Jul 20, 8:11 PM (14 h, 30 m)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
2018897
Default Alt Text
clvm.in (10 KB)
Attached To
Mode
rR Resource Agents
Attached
Detach File
Event Timeline
Log In to Comment