I have the current ctdb version of samba. I can run it in non-clustering mode successfully (mounting, etc), but when I added the following lines to the smb.conf file to start in clustering mode, I get errors in my smbd log file. SMB.CONF: # enable clustering clustering = yes idmap backend = tdb2 private dir = /etc/samba/private SMBD.LOG: [2007/12/31 12:01:16, 6] param/loadparm.c:lp_file_list_changed(3078) lp_file_list_changed() file /etc/samba/smb.conf -> /etc/samba/smb.conf last mod_time: Mon Dec 31 11:50:30 2007 [2007/12/31 12:01:16, 2] lib/interface.c:add_interface(81) added interface ip=192.168.2.6 bcast=192.168.2.255 nmask=255.255.255.0 [2007/12/31 12:01:16, 5] lib/util.c:init_names(287) Netbios name list:- my_netbios_names[0]="MICHAELV3" [2007/12/31 12:01:16, 10] lib/messages.c:ctdbd_socket_readable(1291) reading msglen [2007/12/31 12:01:16, 10] lib/messages.c:ctdbd_socket_readable(1310) msglen = 48 [2007/12/31 12:01:16, 10] lib/messages.c:ctdbd_socket_readable(1332) reading msg len 44 [2007/12/31 12:01:16, 0] lib/messages.c:ctdbd_db_attach(1873) lib/messages.c:1873 ctdb_control for db_attach failed [2007/12/31 12:01:16, 0] lib/dbwrap_ctdb.c:db_open_ctdb(462) ctdbd_db_attach failed for secrets.tdb [2007/12/31 12:01:16, 0] lib/dbwrap.c:db_open(71) failed to attach to ctdb secrets.tdb [2007/12/31 12:01:16, 0] lib/util.c:smb_panic(1669) PANIC (pid 9677): failed to attach to a ctdb database [2007/12/31 12:01:16, 0] lib/util.c:log_stack_trace(1773) BACKTRACE: 7 stack frames: #0 /usr/bin/smbd(log_stack_trace+0x2d) [0x827e167] #1 /usr/bin/smbd(smb_panic+0x78) [0x827e295] #2 /usr/bin/smbd(db_open+0x121) [0x829ab81] #3 /usr/bin/smbd(secrets_init+0xb6) [0x8228bb9] #4 /usr/bin/smbd(main+0x5d3) [0x846d49f] #5 /lib/libc.so.6(__libc_start_main+0xdc) [0xadff2c] #6 /usr/bin/smbd [0x80a4091] [2007/12/31 12:01:16, 0] lib/fault.c:dump_core(181) dumping core in /usr/samba-ctdb/log/cores/smbd
configuration change solved the problem