samba - Jul 2016 - Winbind process stuck at 100% after changing use_mmap to no

On 03/07/16 21:47, Volker Lendecke wrote:
> On Sun, Jul 03, 2016 at 08:42:36PM +0100, Alex Crow wrote:
>> I've only put the "private dir" onto MooseFS, as
instructed in the CTDB
>> docs.
> Can you quote these docs, so that we can correct them?
>
>> So, in that case, I'm assuming from your comments that it is no
worry
>> that the mmap test does not pass on the MooseFS mounts?
> Yes, it is a high worry. If MooseFS is not mmap coherent, you need
> "use mmap = no", and we need to fix Samba and/or MooseFS to
support
> tdbs better.
>
> But as said previously, ctdb should make this unnecessary.
>
>> The "private dir" contains these files:
>>
>> -rw-------+ 1 root root   24576 Jun 23 19:48 netlogon_creds_cli.tdb
>> -rw-------+ 1 root root  421888 Jun 23 19:48 passdb.tdb
>> -rw-------+ 1 root root  430080 Jun 23 19:47 secrets.tdb
>> drwxr-xr-x+ 3 root root 1001200 Jun 23 19:48 smbd.tmp
> This is weird. ctdb-controlled files should have the node-number
> appended. Are you sure that you are running ctdb?
>
> Volker


100% sure I'm using it! :

[root at zearing ~]# ctdb status
Number of nodes:6
pnn:0 172.16.40.13     OK
pnn:1 172.16.40.14     OK (THIS NODE)
pnn:2 172.16.40.15     OK
pnn:3 192.168.21.24    OK
pnn:4 192.168.21.25    OK
pnn:5 192.168.21.27    OK
Generation:1417726848
Size:6
hash:0 lmaster:0
hash:1 lmaster:1
hash:2 lmaster:2
hash:3 lmaster:3
hash:4 lmaster:4
hash:5 lmaster:5
Recovery mode:NORMAL (0)
Recovery master:4

smb.conf:

[global]

max protocol = SMB2
host msdfs = yes
workgroup = IFA_NET
netbios name = LIZARDCLUSTER
private dir = /mfs/ctdb/private
clustering = yes
use mmap = yes

/etc/sysconfig/ctdb:

# Options to ctdbd, read by ctdbd_wrapper(1)
#
# See ctdbd.conf(5) for more information about CTDB configuration variables.

# Shared recovery lock file to avoid split brain.  No default.
#
# Do NOT run CTDB without a recovery lock file unless you know exactly
# what you are doing.
CTDB_RECOVERY_LOCK=/mfs/ctdb/recovery.lock

# List of nodes in the cluster.  Default is below.
CTDB_NODES=/mfs/ctdb/nodes

# List of public addresses for providing NAS services.  No default.
CTDB_PUBLIC_ADDRESSES=/mfs/ctdb/public_addresses_cl

# What services should CTDB manage?  Default is none.
CTDB_MANAGES_SAMBA=yes
CTDB_MANAGES_WINBIND=yes

# CTDB_MANAGES_NFS=yes

# Raise the file descriptor limit for CTDB?
# ulimit -n 10000

# Default is to use the log file below instead of syslog.
# CTDB_LOGFILE=/var/log/log.ctdb
# CTDB_SYSLOG=no

# Default log level is ERR.  NOTICE is a little more verbose.
CTDB_DEBUGLEVEL=NOTICE

# Set some CTDB tunable variables during CTDB startup?
# CTDB_SET_TraverseTimeout=60
CTDB_SAMBA_SKIP_SHARE_CHECK=yes

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On Sun, Jul 03, 2016 at 10:08:47PM +0100, Alex Crow
wrote:
> 100% sure I'm using it! :
And you do have "clustering = yes" in your smb.conf?

Volker

On 04/07/16 09:33, Volker Lendecke wrote:
> On Sun, Jul 03, 2016 at 10:08:47PM +0100, Alex Crow wrote:
>> 100% sure I'm using it! :
> And you do have "clustering = yes" in your smb.conf?
>
> Volker
Yes, I posted that in my last reply.

I think those files were in /mfs/ctdb/private because I tried to rejoin 
the domain with "clustering = yes" commented out but "private
dir" still
set and then realised my mistake.

Thanks,

Alex
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This message is intended only for the addressee and may contain
confidential information. Unless you are that person, you may not
disclose its contents or use it in any way and are requested to delete
the message along with any attachments and notify us immediately.
This email is not intended to, nor should it be taken to, constitute advice.
The information provided is correct to our knowledge & belief and must not
be used as a substitute for obtaining tax, regulatory, investment, legal or
any other appropriate advice.

"Transact" is operated by Integrated Financial Arrangements Ltd.
29 Clement's Lane, London EC4N 7AE. Tel: (020) 7608 4900 Fax: (020) 7608
5300.
(Registered office: as above; Registered in England and Wales under
number: 3727592). Authorised and regulated by the Financial Conduct
Authority (entered on the Financial Services Register; no. 190856).