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#!/bin/bash
#
# fio RA
#
# Copyright (c) 2010 SUSE Linux Products GmbH, Lars Marowsky-Brée
# 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
#######################################################################
meta_data() {
cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="fio" version="0.9">
<version>1.0</version>
<longdesc lang="en">
fio is a generic I/O load generator. This RA allows start/stop of fio
instances to simulate load on a cluster without configuring complex
services.
</longdesc>
<shortdesc lang="en">fio IO load generator</shortdesc>
<parameters>
<parameter name="args">
<longdesc lang="en">
Arguments to the fio client. Minimally, this should be a (list of) job
descriptions to run.
</longdesc>
<shortdesc lang="en">fio arguments</shortdesc>
<content type="string" default="" />
</parameter>
</parameters>
<actions>
<action name="start" timeout="60" />
<action name="stop" timeout="60" />
<action name="monitor" timeout="60" interval="10" />
<action name="meta-data" timeout="5" />
<action name="validate-all" timeout="20" />
</actions>
</resource-agent>
END
}
#######################################################################
fio_usage() {
cat <<END
usage: $0 {start|stop|monitor|validate-all|meta-data}
END
}
fio_start() {
fio_monitor ; rc=$?
if [ $rc = $OCF_SUCCESS ]; then
ocf_log info "fio already running."
exit $OCF_SUCCESS
fi
if [ $rc != $OCF_NOT_RUNNING ]; then
ocf_log info "fio apparently dead; cleaning up before restart"
fio_stop
fi
fio $OCF_RESKEY_args >/dev/null 2>&1 </dev/null &
fio_pid=`jobs -p`
echo $fio_pid >${fio_state_file}
ocf_log info "fio started as pid=$fio_pid"
exit $OCF_SUCCESS
}
fio_stop() {
for sig in SIGINT SIGTERM SIGKILL ; do
fio_monitor ; rc=$?
case $rc in
$OCF_NOT_RUNNING)
ocf_log info "fio already stopped."
exit $OCF_SUCCESS
;;
$OCF_ERR_GENERIC)
rm $fio_state_file
ocf_log info "fio stopped and cleaned up."
exit $OCF_SUCCESS
;;
$OCF_SUCCESS)
if [ -n "$fio_pid" ]; then
ocf_log info "Sending $sig to fio (pid=$fio_pid)"
kill -$sig $fio_pid
sleep 3
continue
fi
ocf_log err "Internal logic failure in fio RA."
;;
*) ocf_log err "Internal logic failure in fio RA."
;;
esac
done
ocf_log err "fio did not stop! Perhaps hung on IO?"
exit $OCF_ERR_GENERIC
}
fio_monitor() {
fio_state_file="${HA_RSCTMP}/fio-${OCF_RESOURCE_INSTANCE}.state"
if [ ! -e $fio_state_file ]; then
return $OCF_NOT_RUNNING
fi
fio_pid=`cat $fio_state_file`
if [ -z "$fio_pid" ]; then
ocf_log err "State file found, but empty. Assuming stopped."
return $OCF_NOT_RUNNING
fi
ps=`ps h -o comm $fio_pid 2>&1`
if [ "$ps" != "fio" ]; then
fio_pid=""
return $OCF_ERR_GENERIC
fi
return $OCF_SUCCESS
}
fio_validate() {
return $OCF_SUCCESS
}
case $__OCF_ACTION in
meta-data) meta_data
exit $OCF_SUCCESS
;;
validate-all) fio_validate;;
usage|help) fio_usage
exit $OCF_SUCCESS
;;
esac
ocf_is_probe || check_binary fio
case $__OCF_ACTION in
start) fio_start;;
stop) fio_stop;;
monitor) fio_monitor;;
*) fio_usage
exit $OCF_ERR_UNIMPLEMENTED
;;
esac

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fio (4 KB)

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