On 18/07/14 07:41, steve wrote:> ctdb 2.5.3 dual node file server with 4.1.9 serving AD domain
>
> Hi
> We have enabled the script at:
> /etc/cdb/events.d/50.samba
> but when we are the enabled node, it starts not only smbd but also nmbd.
> This doesn't make sense in an AD domain. I've tried disabling nmbd
> starting under openSUSE's systemd but ctdb overrides that, I've had
a
> look at the script but can't decipher the bit that starts nmbd.
>
> Qn: Do we have a 'start smbd' version of 50.samba?
>
> Or could any script guru get this to disable nmbd;)
> Cheers and TIA,
> Steve
> Oh, and thanks for an amazing piece of software in ctdb.
>
> #!/bin/sh
> # ctdb event script for Samba
>
> [ -n "$CTDB_BASE" ] || \
> export CTDB_BASE=$(cd -P $(dirname "$0") ; dirname
"$PWD")
>
> . $CTDB_BASE/functions
>
> detect_init_style
>
> case $CTDB_INIT_STYLE in
> suse)
> CTDB_SERVICE_SMB=${CTDB_SERVICE_SMB:-smb}
> CTDB_SERVICE_NMB=${CTDB_SERVICE_NMB:-nmb}
> ;;
> debian)
> CTDB_SERVICE_SMB=${CTDB_SERVICE_SMB:-samba}
> CTDB_SERVICE_NMB=${CTDB_SERVICE_NMB:-""}
> ;;
> *)
> # Use redhat style as default:
> CTDB_SERVICE_SMB=${CTDB_SERVICE_SMB:-smb}
> CTDB_SERVICE_NMB=${CTDB_SERVICE_NMB:-""}
> ;;
> esac
>
> service_name="samba"
>
> loadconfig
>
> ctdb_setup_service_state_dir
>
> service_start ()
> {
> # make sure samba is not already started
> service "$CTDB_SERVICE_SMB" stop > /dev/null 2>&1
> if [ -n "$CTDB_SERVICE_NMB" ] ; then
> service "$CTDB_SERVICE_NMB" stop > /dev/null 2>&1
> fi
> killall -0 -q smbd && {
> sleep 1
> # make absolutely sure samba is dead
> killall -q -9 smbd
> }
> killall -0 -q nmbd && {
> sleep 1
> # make absolutely sure samba is dead
> killall -q -9 nmbd
> }
>
> # start Samba service. Start it reniced, as under very heavy load
> # the number of smbd processes will mean that it leaves few cycles
> # for anything else
> net serverid wipe
>
> if [ -n "$CTDB_SERVICE_NMB" ] ; then
> nice_service "$CTDB_SERVICE_NMB" start || die "Failed to
start nmbd"
> fi
>
> nice_service "$CTDB_SERVICE_SMB" start || die "Failed
to start
> samba"
> }
>
> service_stop ()
> {
> service "$CTDB_SERVICE_SMB" stop
> if [ -n "$CTDB_SERVICE_NMB" ] ; then
> service "$CTDB_SERVICE_NMB" stop
> fi
> }
>
> ######################################################################
> # Show the testparm output using a cached smb.conf to avoid delays due
> # to registry access.
>
> smbconf_cache="$service_state_dir/smb.conf.cache"
>
> testparm_foreground_update ()
> {
> _timeout="$1"
>
> if ! _out=$(timeout $_timeout testparm -v -s 2>/dev/null) ; then
> if [ -f "$smbconf_cache" ] ; then
> echo "WARNING: smb.conf cache update failed - using old cache
file"
> return 1
> else
> die "ERROR: smb.conf cache create failed"
> fi
> fi
>
> _tmpfile="${smbconf_cache}.$$"
> # Patterns to exclude...
> pat='^[[:space:]]+(registry[[:space:]]+shares|include|copy|
> winbind[[:space:]]+separator)[[:space:]]+='
> echo "$_out" | grep -Ev "$pat"
>"$_tmpfile"
> mv "$_tmpfile" "$smbconf_cache" # atomic
>
> return 0
> }
>
> testparm_background_update ()
> {
> _timeout="$1"
>
> testparm_foreground_update $_timeout >/dev/null 2>&1
</dev/null &
> }
>
> testparm_cat ()
> {
> testparm -s "$smbconf_cache" "$@" 2>/dev/null
> }
>
> list_samba_shares ()
> {
> testparm_cat |
> sed -n -e 's@^[[:space:]]*path[[:space:]]*=[[:space:]]@@p' |
> sed -e 's/"//g'
> }
>
> list_samba_ports ()
> {
> testparm_cat --parameter-name="smb ports" |
> sed -e 's@,@ @g'
> }
>
> ###########################
>
> ctdb_start_stop_service
>
> is_ctdb_managed_service || exit 0
>
> ###########################
>
> case "$1" in
> startup)
> ctdb_service_start
> ;;
>
> shutdown)
> ctdb_service_stop
> ;;
>
> monitor)
> testparm_foreground_update 10
> ret=$?
>
> smb_ports="$CTDB_SAMBA_CHECK_PORTS"
> if [ -z "$smb_ports" ] ; then
> smb_ports=$(list_samba_ports)
> [ -n "$smb_ports" ] || die "Failed to set smb
ports"
> fi
> ctdb_check_tcp_ports $smb_ports || exit $?
>
> if [ "$CTDB_SAMBA_SKIP_SHARE_CHECK" != "yes" ] ; then
> list_samba_shares | ctdb_check_directories || exit $?
> fi
>
> if [ $ret -ne 0 ] ; then
> testparm_background_update 10
> fi
> ;;
>
> *)
> ctdb_standard_event_handler "$@"
> ;;
> esac
>
> exit 0
>
OK Steve, on opensuse try this:
Change
suse)
CTDB_SERVICE_SMB=${CTDB_SERVICE_SMB:-smb}
CTDB_SERVICE_NMB=${CTDB_SERVICE_NMB:-nmb}
To
suse)
CTDB_SERVICE_SMB=${CTDB_SERVICE_SMB:-smb}
#CTDB_SERVICE_NMB=${CTDB_SERVICE_NMB:-nmb}
This should let the script stop any instances of the nmbd deamon that
are running, but would then wouldn't start nmbd again.
I think that the script would have to be rewritten for any other OS.
Rowland