[Samba] smbd does not start under ctdb

[David Disseldorp]

On Tue, 08 Jul 2014 14:02:06 +0200, steve wrote:

> All seems OK with ctdb:
> n1:
> ctdb status
> Number of nodes:2
> pnn:0 192.168.0.10     OK (THIS NODE)
> pnn:1 192.168.0.11     OK
> Generation:1187222392
> Size:2
> hash:0 lmaster:0
> hash:1 lmaster:1
> Recovery mode:NORMAL (0)
> Recovery master:0
> 
> n2:
> ctdb status
> Number of nodes:2
> pnn:0 192.168.0.10     OK
> pnn:1 192.168.0.11     OK (THIS NODE)
> Generation:1187222392
> Size:2
> hash:0 lmaster:0
> hash:1 lmaster:1
> Recovery mode:NORMAL (0)
> Recovery master:0
> 
> But we cannot start smbd:
> Maximum core file size limits now 16777216(soft) -1(hard)
> smbd version 4.1.9-3.22.1-3256-SUSE-oS13.1-i386 started.
> Copyright Andrew Tridgell and the Samba Team 1992-2013
> uid=0 gid=0 euid=0 egid=0
> lp_load_ex: refreshing parameters
> Initialising global parameters
> rlimit_max: increasing rlimit_max (1024) to minimum Windows limit
> (16384)
> params.c:pm_process() - Processing configuration file
> "/etc/samba/smb.conf"
> Processing section "[global]"
> connect(/var/lib/ctdb/ctdb.socket) failed: Connection refused
> messaging_ctdbd_init failed: NT_STATUS_CONNECTION_REFUSED
> 
> We tried changing the socket to /tmp but the same errors occur.
> Any ideas?

If you're not running ctdb under pacemaker, then you probably want
ctdb to manage the samba resource (start and stop smbd), the same goes
for winbind.

This should be possible with the following in /etc/sysconfig/ctdb:
CTDB_MANAGES_SAMBA=yes

Enable the event script with:
# ctdb enablescript 50.samba

> Thanks,
> Steve
> 
> smb.conf:
> [global]
> realm = HH3.SITE
> security = ADS
> kerberos method = system keytab
> netbios name = smbcluster
> clustering = Yes
> private dir = /cluster/ctdb

I'd recommend also explicitly setting the ctdb socket path here...
ctdbd socket = /var/lib/ctdb/ctdb.socket

> [users]
> path = /cluster/users
> read only = No
> 
> The nodes are mounted at both ends:
> /dev/drbd1 on /cluster type ocfs2
> (rw,relatime,_netdev,heartbeat=local,nointr,data=ordered,errors=remount-ro,atime_quantum=60,coherency=full,user_xattr,acl)
> 
> 
> /etc/sysconfig/ctdb
> 
> CTDB_RECOVERY_LOCK="/cluster/ctdb/lockfile"
> CTDB_PUBLIC_INTERFACE=enp0s3
> CTDB_PUBLIC_ADDRESSES=/etc/ctdb/public_addresses
> CTDB_LVS_PUBLIC_IP=
> CTDB_SAMBA_SKIP_SHARE_CHECK=yes
> CTDB_MANAGES_ISCSI=yes
> CTDB_INIT_STYLE=
> CTDB_NODES=/etc/ctdb/nodes
> CTDB_NOTIFY_SCRIPT=/etc/ctdb/notify.sh
> CTDB_DBDIR=/var/lib/ctdb
> CTDB_DBDIR_PERSISTENT=/var/lib/ctdb/persistent
> CTDB_EVENT_SCRIPT_DIR=/etc/ctdb/events.d
> CTDB_SOCKET=/var/lib/ctdb/ctdb.socket
> CTDB_TRANSPORT="tcp"
> CTDB_MONITOR_FREE_MEMORY=100
> CTDB_START_AS_DISABLED="yes"
> CTDB_CAPABILITY_RECMASTER=yes
> CTDB_CAPABILITY_LMASTER=yes
> NATGW_PUBLIC_IP=
> NATGW_PUBLIC_IFACE=
> NATGW_DEFAULT_GATEWAY=
> NATGW_PRIVATE_IFACE=
> NATGW_PRIVATE_NETWORK=
> NATGW_NODES=/etc/ctdb/natgw_nodes
> CTDB_LOGFILE=/var/log/ctdb/log.ctdb
> CTDB_DEBUGLEVEL=2
> CTDB_OPTIONS=
> 
>