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|
#!/bin/sh
# Exit on 1st error
set -e
# Red Hat
nfs_service="nfs"
nfslock_service="nfslock"
nfs_config="/etc/sysconfig/nfs"
# SUSE
#nfs_service="nfsserver"
#nfslock_service=""
#nfs_config="/etc/sysconfig/nfs"
# Debian
#nfs_service="nfs-kernel-server"
#nfslock_service=""
#nfs_config="/etc/default/nfs-kernel-server"
# Override for unit testing
if [ -z "$PROCFS_PATH" ] ; then
PROCFS_PATH="/proc"
fi
##################################################
usage ()
{
_c=$(basename $0)
cat <<EOF
usage: $_c { shutdown | startup }
$_c { stop | start } { nfs | nlockmgr }
$_c { monitor-list-shares | monitor-post }
EOF
exit 1
}
##################################################
# Basic service stop and start
basic_stop ()
{
case "$1" in
nfs)
service "$nfs_service" stop
if [ -n "$nfslock_service" ] ; then
service "$nfslock_service" stop
fi
;;
nfslock)
if [ -n "$nfslock_service" ] ; then
service "$nfslock_service" stop
else
service "$nfs_service" stop
fi
;;
*)
usage
esac
}
basic_start ()
{
case "$1" in
nfs)
if [ -n "$nfslock_service" ] ; then
service "$nfslock_service" start
fi
service "$nfs_service" start
;;
nfslock)
if [ -n "$nfslock_service" ] ; then
service "$nfslock_service" start
else
service "$nfs_service" start
fi
;;
*)
usage
esac
}
##################################################
# service "stop" and "start" options for restarting
service_stop ()
{
case "$1" in
nfs)
echo 0 >"${PROCFS_PATH}/fs/nfsd/threads"
basic_stop "nfs" >/dev/null 2>&1 || true
pkill -9 nfsd
;;
nlockmgr)
basic_stop "nfslock" >/dev/null 2>&1 || true
;;
*)
usage
esac
}
service_start ()
{
case "$1" in
nfs)
basic_start "nfs"
;;
nlockmgr)
basic_start "nfslock"
;;
*)
usage
esac
}
##################################################
# service init startup and final shutdown
nfs_shutdown ()
{
basic_stop "nfs"
}
nfs_startup ()
{
basic_stop "nfs" || true
basic_start "nfs"
_f="${PROCFS_PATH}/sys/net/ipv4/tcp_tw_recycle"
if [ "$_f" ] ; then
echo 1 >"$_f"
fi
}
##################################################
# monitor-post support
nfs_check_thread_count ()
{
# Load NFS configuration to get desired number of threads.
if [ -r "$nfs_config" ] ; then
. "$nfs_config"
fi
# If $RPCNFSDCOUNT/$USE_KERNEL_NFSD_NUMBER isn't set then we could
# guess the default from the initscript. However, let's just
# assume that those using the default don't care about the number
# of threads and that they have switched on this feature in error.
_configured_threads="${RPCNFSDCOUNT:-${USE_KERNEL_NFSD_NUMBER}}"
[ -n "$_configured_threads" ] || return 0
_threads_file="${PROCFS_PATH}/fs/nfsd/threads"
# nfsd should be running the configured number of threads. If
# there are a different number of threads then tell nfsd the
# correct number.
read _running_threads <"$_threads_file"
# Intentionally not arithmetic comparison - avoids extra errors
# when above fails...
if [ "$_running_threads" != "$_configured_threads" ] ; then
echo "Attempting to correct number of nfsd threads from ${_running_threads} to ${_configured_threads}"
echo "$_configured_threads" >"$_threads_file"
fi
}
##################################################
# list share directories
nfs_monitor_list_shares ()
{
exportfs -v |
grep '^/' |
sed -e 's@[[:space:]][[:space:]]*[^[:space:]()][^[:space:]()]*([^[:space:]()][^[:space:]()]*)$@@' |
sort -u
}
##################################################
case "$1" in
shutdown)
nfs_shutdown
;;
startup)
nfs_startup
;;
stop)
service_stop "$2"
;;
start)
service_start "$2"
;;
monitor-list-shares)
nfs_monitor_list_shares
;;
monitor-post)
nfs_check_thread_count
;;
monitor-pre|releaseip|takeip)
# Not required/implemented
:
;;
*)
usage
esac
|
