[Samba] CTDB: Failed to connect client socket to daemon.
Achim Gottinger
achim at ag-web.biz
Sun Aug 17 10:18:18 MDT 2014
Am 17.08.2014 17:04, schrieb steve:
> On Sun, 2014-08-17 at 14:22 +0200, Achim Gottinger wrote:
>> Am 17.08.2014 11:25, schrieb steve:
>>> On Sat, 2014-08-16 at 19:57 +0200, Achim Gottinger wrote:
>>>> Am 16.08.2014 19:39, schrieb steve:
>>>>> On Sat, 2014-08-16 at 18:09 +0200, Achim Gottinger wrote:
>>>>>> Am 16.08.2014 15:52, schrieb steve:
>>>>>>> Ubuntu 14.04, ctdb 2.5.3, samba 4.1.11. CTDB is working with IP takeover
>>>>>>> between the 2 nodes. The machine is joined to the domain.
>>>>>>>
>>>>>>> Any help with the following errors would be most gratefully received.
>>>>>>>
>>>>>>> 1. connect to socket error:
>>>>>>> ctdb status
>>>>>>> 2014/08/16 15:32:03.248034 [23255]: client/ctdb_client.c:267 Failed to
>>>>>>> connect client socket to daemon. Errno:Connection refused(111)
>>>>>>> common/cmdline.c:156 Failed to connect to daemon
>>>>>> What's the output of ls -l /usr/local/var/run/ctdb/ ?
>>>>> ls -l /usr/local/var/run/ctdb
>>>>> total 0
>>>>> srwx------ 1 root root 0 ago 16 19:32 ctdbd.socket
>>>>>
>>>>> The socket is there and is renewed upon each ctdb (re) start. smb.conf
>>>>> refers to the same socket.
>>>> Guess that's ok. Maybe the log is more helpfull with CTDB_DEBUGLEVEL=4
>>>> (an recommendation i found on an other therad about ctdb issues).
>>> Hi
>>> This solves the socket problem:
>>> /etc/default/ctdb
>>>
>>> #CTDB_SOCKET=/usr/local/var/run/ctdb/ctdbd.socket
>>> export CTDB_SOCKET
>> Seen this mentined here.
>> http://lists.opensuse.org/opensuse-bugs/2013-07/msg03469.html. Assumed
>> the thread was to old to be relevant here. :-\
>>> and indeed:
>>> sudo ctdb status
>>> Number of nodes:2
>>> pnn:0 192.168.0.10 OK (THIS NODE)
>>> pnn:1 192.168.0.11 DISCONNECTED|UNHEALTHY|INACTIVE
>>> Generation:635915504
>>> Size:1
>>> hash:0 lmaster:0
>>> Recovery mode:NORMAL (0)
>>> Recovery master:0
>>>
>>> ...................
>>>
>>> What are the valid arguments to 50.samba?
>>>
>>> *************
>>> As you suggested we restored the original 50.samba script and added:
>>> CTDB_SERVICE_SMB=smbd
>>> to /etc/defaults/ctdb
>>>
>>> Here is /etc/ctdb/events.d/50.samba:
>>> #!/bin/sh
>>> # ctdb event script for Samba
>>>
>>> [ -n "$CTDB_BASE" ] || \
>>> export CTDB_BASE=$(cd -P $(dirname "$0") ; dirname "$PWD")
>>>
>>> . $CTDB_BASE/functions
>>> .........
>>> service_start ()
>>> {
>>> # make sure samba is not already started
>>> echo $CTDB_SERVICE_SMB
>>> exit 1
>> The above two lines do not appear on debians version of the startscript.
>> Guess they endedup unintentional.
> OK, removed them.
>
>>> service "$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"
>>> }
>>>
>>> .....
>>> is_ctdb_managed_service || exit 0
>> Below you can see startup/shutdown/monitor are valid options for the
>> script. Take an look at /etc/ctdb/functions if you want to inspect the
>> functions like is_ctdb_managed_service above.
>>> ###########################
>>>
>>> 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
>>>
>> Hope that helps.
> Hi
> smbd won't start:
> sudo smbd -i -d3
> Maximum core file size limits now 16777216(soft) -1(hard)
> smbd version 4.1.11 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
> "/usr/local/samba/etc/smb.conf"
> Processing section "[global]"
> connect(/usr/local/var/run/ctdb/ctdbd.socket) failed: Connection refused
> messaging_ctdbd_init failed: NT_STATUS_CONNECTION_REFUSED
>
> We have exported CTDB_SOCKET as per the post you sent:
> echo $CTDB_SOCKET
> /usr/local/var/run/ctdb/ctdbd.socket
>
> But smbd will not start:
>
> sudo smbd -i -d3
> Maximum core file size limits now 16777216(soft) -1(hard)
> smbd version 4.1.11 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
> "/usr/local/samba/etc/smb.conf"
> Processing section "[global]"
> connect(/usr/local/var/run/ctdb/ctdbd.socket) failed: Connection refused
> messaging_ctdbd_init failed: NT_STATUS_CONNECTION_REFUSED
>
> We have tried with the socket at:
> /var/run/ctdb/ctdbd.socket
> and
> /usr/local/var/run/ctdb/ctdbd.socket
>
> We can only run:
> sudo ctdb status
> with the socket at:
> /usr/local/var/run/ctdb/ctdbd.socket
>
> But then, smbd will not start.
>
> Give up?
> Thanks for your patience,
> Steve
Did an quick setup here on my testing vm (debian wheezy with samba from
backports.
CTDB_SOCKET is not configured in /etc/default/ctdb here, i did not
change that.
I created suitable /etc/ctdb/nodes and /etc/ctdb/public_addresses for my
network and set CTDB_RECOVERY_LOCK=/tmp/ctdb.lock in /etc/default/ctdb.
First try to start ctdb resulted in an error message
2014/08/17 17:27:46.970998 [16882]: Unable to bind on ctdb socket
'/var/lib/run/ctdb/ctdbd.socket'
So the lock seems to be expected at /var/lib/run/ctdb. The folder did
not exist so i created it. Then ctdb started.
ls -l /var/lib/run/ctdb/
total 0
srwx------ 1 root root 0 Aug 17 17:52 ctdbd.socket
ctdb status
Number of nodes:1
pnn:0 192.168.100.104 OK (THIS NODE)
Generation:1546680508
Size:1
hash:0 lmaster:0
Recovery mode:NORMAL (0)
Recovery master:0
Stripped down my smb.conf which is usually for an addc to this content:
[global]
workgroup = DOMAIN
realm = domain.local
netbios name = server
interfaces = 192.168.100.104,127.0.0.1
bind interfaces only = Yes
disable netbios = yes
clustering = yes
ctdbd socket = /var/lib/run/ctdb/ctdbd.socket
[s1]
path = /test/data/s1
read only = No
Trying to start smbd in foreground just like you did:
~#smbd -i -d3
Maximum core file size limits now 16777216(soft) -1(hard)
smbd version 4.1.9-Debian 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]"
Registered MSG_REQ_POOL_USAGE
Registered MSG_REQ_DMALLOC_MARK and LOG_CHANGED
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]"
Processing section "[s1]"
adding IPC service
added interface eth0 ip=192.168.100.104 bcast=192.168.100.255
netmask=255.255.255.0
added interface lo ip=127.0.0.1 bcast=127.255.255.255 netmask=255.0.0.0
loaded services
db_open_ctdb: opened database 'g_lock.tdb' with dbid 0x4d2a432b
db_open_ctdb: opened database 'secrets.tdb' with dbid 0x7132c184
db_open_ctdb: opened database 'dbwrap_watchers.tdb' with dbid 0x6afb8c09
db_open_ctdb: opened database 'smbXsrv_version_global.tdb' with dbid
0x521b7544
db_open_ctdb: opened database 'serverid.tdb' with dbid 0x9ec2a880
db_open_ctdb: opened database 'smbXsrv_session_global.tdb' with dbid
0x6b06a26d
db_open_ctdb: opened database 'smbXsrv_tcon_global.tdb' with dbid 0x68c12c2c
db_open_ctdb: opened database 'brlock.tdb' with dbid 0x4e66c2b2
db_open_ctdb: opened database 'locking.tdb' with dbid 0x7a19d84d
db_open_ctdb: opened database 'notify_index.tdb' with dbid 0xaf029e9d
db_open_ctdb: opened database 'g_lock.tdb' with dbid 0x4d2a432b
db_open_ctdb: opened database 'registry.tdb' with dbid 0x6cf2837d
db_open_ctdb: opened database 'g_lock.tdb' with dbid 0x4d2a432b
db_open_ctdb: opened database 'share_info.tdb' with dbid 0xc3078fba
db_open_ctdb: opened database 'g_lock.tdb' with dbid 0x4d2a432b
db_open_ctdb: opened database 'group_mapping.tdb' with dbid 0xa1413774
db_open_ctdb: opened database 'g_lock.tdb' with dbid 0x4d2a432b
db_open_ctdb: opened database 'account_policy.tdb' with dbid 0x2ca251cf
db_open_ctdb: opened database 'g_lock.tdb' with dbid 0x4d2a432b
db_open_ctdb: opened database 'passdb.tdb' with dbid 0x3ef19640
db_open_ctdb: opened database 'smbXsrv_open_global.tdb' with dbid 0x66f71b8c
Initialise the svcctl registry keys if needed.
db_open_ctdb: opened database 'g_lock.tdb' with dbid 0x4d2a432b
db_open_ctdb: opened database 'registry.tdb' with dbid 0x6cf2837d
Initialise the eventlog registry keys if needed.
db_open_ctdb: opened database 'g_lock.tdb' with dbid 0x4d2a432b
db_open_ctdb: opened database 'registry.tdb' with dbid 0x6cf2837d
db_open_ctdb: opened database 'printer_list.tdb' with dbid 0x5bcfcbd7
reloading printcap cache
Seems it's ok for ctdb.
An quick test to check the socket used by ctdbd.
~#pidof ctdbd
22724 22580
~#lsof -p 22580 | grep socket
ctdbd 22580 root 5u unix 0xffff880002319ac0 0t0 609955
/var/lib/run/ctdb/ctdbd.socket
ctdbd 22580 root 16u unix 0xffff8800ec5103c0 0t0 616499
/var/lib/run/ctdb/ctdbd.socket
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