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mfsmaster
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executable file
·332 lines (304 loc) · 10.3 KB
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#!/bin/sh
#
#
# MooseFS OCF RA. Control moosefs master agent.
# Used Dummy agent as template
# Copyright (c) 2013 Juan Carlos Fernandez
# 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:
. /etc/init.d/functions
. ${OCF_ROOT}/resource.d/heartbeat/.ocf-shellfuncs
OCF_RESKEY_config_default="/etc/mfs/mfsmaster.cfg"
OCF_RESKEY_binary_default="/usr/sbin/mfsmaster"
OCF_RESKEY_metalog_path_default="/var/lib/mfsmetalogger"
: ${OCF_RESKEY_config=${OCF_RESKEY_config_default}}
: ${OCF_RESKEY_binary=${OCF_RESKEY_binary_default}}
: ${OCF_RESKEY_metalog_path=${OCF_RESKEY_metalog_path_default}}
#######################################################################
mfs_meta_data() {
cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="mfsmaster" version="1.0">
<version>1.0</version>
<longdesc lang="en">
This is a Resource Agent for MooseFS. It checks if mfsmaster are propertly
configured, check service health if it is running.
To ensure HA it's advisable to configure another resource as (VIP), and make
a group with it.
</longdesc>
<shortdesc lang="en">MooseFS stateless resource agent</shortdesc>
<parameters>
<parameter name="config" required="0" unique="1">
<longdesc lang="en">
Full path to mfsmaster configuration file
</longdesc>
<shortdesc lang="en">mfsmaster configuration file</shortdesc>
<content type="string" default="/etc/mfs/mfsmaster.cfg" />
</parameter>
<parameter name="meta_path" required="1" unique="1">
<longdesc lang="en">
Full path to root directory where are stored metadata used by metalogger and master.
</longdesc>
<shortdesc lang="en">Metadata directory path</shortdesc>
<content type="string" />
</parameter>
<parameter name="binary" required="0" unique="1">
<longdesc lang="en">
Full path to mfsmaster server.
</longdesc>
<shortdesc lang="en">mfsmaster server command</shortdesc>
<content type="string" default="/usr/sbin/mfsmaster" />
</parameter>
<parameter name="metalogger_server" required="0" unique="1">
<longdesc lang="en">
Server running metalogger. It's required an ssh paswordless connection.
</longdesc>
<shortdesc land="en">metalogger server</shortdesc>
<content type="string" default="none" />
</parameter>
<parameter name="metalog_path" required="0" unique="1">
<longdesc lang="en">
Path to metalog files in metalogger server.
</longdesc>
<shortdesc lang="en">Path to metelog dir in metalogger</shortdesc>
<content type="string" default="/var/lib/mfsmetalogger" />
</parameter>
</parameters>
<actions>
<action name="start" timeout="20" />
<action name="stop" timeout="20" />
<action name="monitor" timeout="20" interval="10" depth="0"/>
<action name="reload" timeout="20" />
<action name="migrate_to" timeout="20" />
<action name="migrate_from" timeout="20" />
<action name="validate-all" timeout="20" />
<action name="meta-data" timeout="5" />
</actions>
</resource-agent>
END
}
#######################################################################
# don't exit on TERM, to test that lrmd makes sure that we do exit
trap sigterm_handler TERM
sigterm_handler() {
ocf_log info "They use TERM to bring us down. No such luck."
return
}
mfs_usage() {
cat <<END
usage: $0 {start|stop|monitor|migrate_to|migrate_from|validate-all|meta-data}
Expects to have a fully populated OCF RA-compliant environment set.
END
}
mfs_start() {
mfs_monitor
RETVAL=$?
#if [ $rc = $OCF_ERR_GENERIC ] ; then
# if [ -f $OCF_RESKEY_meta_path/.mfsmaster.lock ] ; then
# rm -f $OCF_RESKEY_meta_path/.mfsmaster.lock
# fi
#fi
if [ $RETVAL = $OCF_NOT_RUNNING ]; then
if [ -e $OCF_RESKEY_meta_path/metadata.mfs ]; then
mfs_start_mfsmaster
RETVAL=$?
[ $RETVAL -eq $OCF_SUCCESS ] && return $OCF_SUCESS
fi
mfs_metarestore
RETVAL=$?
[ $RETVAL -ne $OCF_SUCCESS] && return $RETVAL
return mfs_start_mfsmaster
else
return $RETVAL
fi
}
mfs_start_mfsmaster(){
ocf_run $OCF_RESKEY_binary -c $OCF_RESKEY_config start &> /dev/null
sleep 5
if [ ! `pidof mfsmaster` ] ; then
sleep 3
[ ! `pidof mfmaster` ] && return $OCF_ERR_GENERIC
fi
return $OCF_SUCCESS
}
mfs_metarestore(){
set -xv
# Creation of backup tar file before try to restore file.
# #1 create appropiate directory tree
rm -rf $OCF_RESKEY_meta_path/tmp
mkdir -p $OCF_RESKEY_meta_path/{bak,tmp}
chown mfs:mfs $OCF_RESKEY_meta_path/{bak,tmp}
# #2 Backing up restoration files.
cp $OCF_RESKEY_meta_path/*.mfs $OCF_RESKEY_meta_path/tmp/ &> /dev/null
cp $OCF_RESKEY_meta_path/*.mfs.back $OCF_RESKEY_meta_path/tmp/ &> /dev/null
# #3 Compressing and storing files
tar -czf $OCF_RESKEY_meta_path/bak/metabak.$(date +%Y%m%d%H%M%S).tar.gz $OCF_RESKEY_meta_path/tmp/* &>/dev/null
rm -rf $OCF_RESKEY_meta_path/tmp &>/dev/null
# #4 restore
mfsmetarestore -a -d $OCF_RESKEY_meta_path
if [ $? -eq 0 ] ; then
chown mfs:mfs $OCF_RESKEY_meta_path/metadata.mfs
return $OCF_SUCCESS
fi
# #5 trying to restore from metalogger
if [ ! -z "$OCF_RESKEY_metalogger_server" ] ; then
rm -rf $OCF_RESKEY_metalog_path/tmp
mkdir -p $OCF_RESKEY_metalog_path/tmp
# #6 Stop and start metalogger service to prevent copying corrupted files
ssh $OCF_RESKEY_metalogger_server service mfsmetalogger stop
scp -rp $OCF_RESKEY_metalogger_server:$OCF_RESKEY_metalog_path/* $OCF_RESKEY_metalog_path/tmp
ssh $OCF_RESKEY_metalogger_server service mfsmetalogger start
mfsmetarestore -a -d $OCF_RESKEY_metalog_path/tmp
[ $? -ne 0 ] && return $OCF_ERR_GENERIC
cp $OCF_RESKEY_metalog_path/tmp/metadata.mfs $OCF_RESKEY_meta_path/metadata.mfs
rm -rf $OCF_RESKEY_metalog_path/tmp
chown mfs:mfs $OCF_RESKEY_meta_path/metadata.mfs
return $OCF_SUCCESS
else
return $OCF_ERR_GENERIC
fi
}
mfs_stop() {
mfs_monitor
if [ $? = $OCF_SUCCESS ]; then
pid=`pidof mfsmaster`
ocf_run $OCF_RESKEY_binary stop &> /dev/null
[ $? -eq 0 ] && rm $OCF_RESKEY_meta_path/.mfsmaster.lock
shutdown_timeout=15
if [ -n "$OCF_RESKEY_CRM_meta_timeout" ]; then
shutdown_timeout=$((($OCF_RESKEY_CRM_meta_timeout/1000)-5))
fi
count=0
while [ $count -lt $shutdown_timeout ]
do
mfs_monitor
rc=$?
if [ $rc = $OCF_NOT_RUNNING ]; then
break
fi
count=`expr $count + 1`
sleep 1
ocf_log debug "mfsmaster still hasn't stopped yet. Waiting..."
done
mfs_monitor
rc=$?
if [ $rc != $OCF_NOT_RUNNING ]; then
ocf_log info "mfsmaster failed to stop after ${shutdown_timeout}s using SIGTERM. Trying SIGKILL..."
/bin/kill -KILL $pid > /dev/null
fi
fi
mfs_monitor
rc=$?
if [ $rc -eq $OCF_NOT_RUNNING ]; then
rm -f $OCF_RESKEY_meta_path/.mfsmaster.lock
return $OCF_SUCCESS
else
pid=`lsof -i :9419 -Fp | cut -c2-`
if [ ! -z $pid ];then
/bin/kill -KILL $pid > /dev/null
fi
mfs_monitor
rc=$?
if [ $rc = $OCF_NOT_RUNNING ]; then
rm -f $OCF_RESKEY_meta_path/.mfsmaster.lock
return $OCF_SUCCESS
else
ocf_log err "mfsmaster couldn't be stopped"
return $OCF_ERROR_GENERIC
fi
fi
}
mfs_monitor() {
# Monitor _MUST!_ differentiate correctly between running
# (SUCCESS), failed (ERROR) or _cleanly_ stopped (NOT RUNNING).
# That is THREE states, not just yes/no.
lsof -i :9419 > /dev/null
LISTENING=$?
pidof mfsmaster > /dev/null
rc=$?
if [ $rc -eq 0 ] && [ $LISTENING -eq 0 ]; then
return $OCF_SUCCESS
elif [ $rc -eq 0 ] && [ $LISTENING -ne 0 ]; then
return $OCF_ERR_GENERIC
elif [ $rc -ne 0 ] && [ $LISTENING -eq 0 ]; then
return $OCF_ERR_GENERIC
fi
[ -f $OCF_RESKEY_meta_path/.mfsmaster.lock ] && rm -f $OCF_RESKEY_meta_path/.mfsmaster.lock
return $OCF_NOT_RUNNING
}
#Should validate:
# configuration files exists
# metadata path
#
mfs_validate() {
if [ -f $OCF_RESKEY_config ]; then
EXPORTS_FILENAME=`grep "EXPORTS_FILENAME" $OCF_RESKEY_config | cut -d '=' -f2`
DATA_PATH=`grep "DATA_PATH" $OCF_RESKEY_config | cut -d '=' -f2`
WORKING_GROUP=`grep "WORKING_GROUP" $OCF_RESKEY_config | cut -d '=' -f2`
WORKING_USER=`grep "WORKING_USER" $OCF_RESKEY_config | cut -d '=' -f2`
[ ! -f $EXPORTS_FILENAME ] && return $OCF_ERR_ARGS
[ ! -d $DATA_PATH ] && return $OCF_ERR_ARGS
fi
return $OCF_SUCCESS
}
: ${OCF_RESKEY_CRM_meta_interval=0}
: ${OCF_RESKEY_CRM_meta_globally_unique:="true"}
if [ "x$OCF_RESKEY_state" = "x" ]; then
if [ ${OCF_RESKEY_CRM_meta_globally_unique} = "false" ]; then
state="${HA_VARRUN}/mfsmaster-${OCF_RESOURCE_INSTANCE}.state"
# Strip off the trailing clone marker
OCF_RESKEY_state=`echo $state | sed s/:[0-9][0-9]*\.state/.state/`
else
OCF_RESKEY_state="${HA_VARRUN}/mfsmaster-${OCF_RESOURCE_INSTANCE}.state"
fi
fi
case $__OCF_ACTION in
meta-data) mfs_meta_data
exit $OCF_SUCCESS
;;
start) mfs_start;;
stop) mfs_stop;;
monitor) mfs_monitor;;
migrate_to) ocf_log info "Migrating ${OCF_RESOURCE_INSTANCE} to ${OCF_RESKEY_CRM_meta_migrate_target}."
stop
;;
migrate_from) ocf_log info "Migrating ${OCF_RESOURCE_INSTANCE} to ${OCF_RESKEY_CRM_meta_migrate_source}."
start
;;
reload) ocf_log err "Reloading..."
mfs_stop
mfs_start
;;
validate-all) mfs_validate;;
usage|help) mfs_usage
exit $OCF_SUCCESS
;;
*) mfs_usage
exit $OCF_ERR_UNIMPLEMENTED
;;
esac
rc=$?
ocf_log debug "${OCF_RESOURCE_INSTANCE} $__OCF_ACTION : $rc"
exit $rc