[Samba] CTDB 50.samba: ERROR: smb.conf cache create failed

[Achim Gottinger]

Am 23.08.2014 15:49, schrieb steve:
> Ubuntu 14.04, ctdb 2.5.1 from the ubuntu package. samba 4.1.11 with
> cluster support from source.
>
> Error upon startup only. Restarting ctdb on that node clears the error.
> The other node with the same config is OK. Any ideas?
> Cheers,
> Steve
>
> smb.conf
> [global]
> workgroup = ALTEA
> realm = ALTEA.SITE
> security = ADS
> kerberos method = secrets and keytab
> netbios name = SMBCLUSTER
> disable netbios = Yes
> clustering = Yes
> ctdbd socket = /var/lib/run/ctdb/ctdbd.socket
> pid director = /var/run/samba
> [users]
> path = /cluster/users
> read only = No
> [profiles]
> path = /cluster/profiles
> read only = No
> [shared]
> path = /cluster/shared
> force create mode = 0770
> read only = No
Added an modification, so it shows the full path for the file causing 
the error.
> 50.samba
> #!/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
>
>      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"

die "ERROR: smb.conf cache create failed at $smbconf_cache"

> 	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
>
>
>