[Samba] Re: Performance and disconnect troubles on winbind after samba upgrade

[Fabiano Felix]

Hello,

Somebody have any trouble like this? I'm lost because I didn't found any
report near to mine, and it's getting worse.

Any help will be appreciated.

Best regards,

Fabiano Felix

On Wed, 2008-07-23 at 11:55 -0300, Fabiano Felix wrote:
> Hello, 
>  
> We have a RHEL4 x64 running for 3 years, which is a samba member server
> integrated with a AD domain without any problems (we was using
> samba-3.0.10-1.4E.6). 
>  
> Last Saturday we performed an entire server update, applying all RHN
> available patches. Everything is running fine, except for winbind
> service which has a strange behavior: often we are receiving some errors
> at logs, and the users/groups resolution is taking a long time, which
> affects user experience. 
>  
> The installed version is samba-3.0.25b-1.el4_6.5, and below we have some
> of these errors: 
> " 
> Jul 22 11:05:10 lxnserver winbindd[18539]: [2008/07/22 11:05:10, 0]
> libsmb/clientgen.c:cli_receive_smb(111) 
> Jul 22 11:05:10 lxnserver winbindd[18539]:   Receiving SMB: Server
> stopped responding 
> Jul 22 11:05:10 lxnserver winbindd[18539]: [2008/07/22 11:05:10, 0]
> rpc_client/cli_pipe.c:rpc_api_pipe(790) 
> Jul 22 11:05:10 lxnserver winbindd[18539]:   rpc_api_pipe: Remote
> machine server.mydomain.intra pipe \lsarpc fnum 0x4000returned critical
> error. Error was Call timed out: server did not respond after 10000
> milliseconds 
> Jul 22 11:11:03 lxnserver winbindd[18539]: [2008/07/22 11:11:03, 0]
> libsmb/clientgen.c:cli_receive_smb(111) 
> Jul 22 11:11:03 lxnserver winbindd[18539]:   Receiving SMB: Server
> stopped responding 
> Jul 22 11:11:03 lxnserver winbindd[18539]: [2008/07/22 11:11:03, 0]
> rpc_client/cli_pipe.c:rpc_api_pipe(790) 
> Jul 22 11:11:03 lxnserver winbindd[18539]:   rpc_api_pipe: Remote
> machine server.mydomain.intra pipe \lsarpc fnum 0x400areturned critical
> error. Error was Call timed out: server did not respond after 10000
> milliseconds 
> Jul 22 11:12:46 lxnserver winbindd[18539]: [2008/07/22 11:12:46, 0]
> libsmb/clientgen.c:cli_receive_smb(111) 
> Jul 22 11:12:46 lxnserver winbindd[18539]:   Receiving SMB: Server
> stopped responding 
> Jul 22 11:12:46 lxnserver winbindd[18539]: [2008/07/22 11:12:46, 0]
> rpc_client/cli_pipe.c:rpc_api_pipe(790) 
> Jul 22 11:12:46 lxnserver winbindd[18539]:   rpc_api_pipe: Remote
> machine server.mydomain.intra pipe \lsarpc fnum 0xc001returned critical
> error. Error was Call timed out: server did not respond after 10000
> milliseconds 
> Jul 22 11:15:12 lxnserver winbindd[18539]: [2008/07/22 11:15:12, 0]
> libsmb/clientgen.c:cli_receive_smb(111) 
> Jul 22 11:15:12 lxnserver winbindd[18539]:   Receiving SMB: Server
> stopped responding 
> Jul 22 11:15:12 lxnserver winbindd[18539]: [2008/07/22 11:15:12, 0]
> rpc_client/cli_pipe.c:rpc_api_pipe(790) 
> Jul 22 11:15:12 lxnserver winbindd[18539]:   rpc_api_pipe: Remote
> machine server.mydomain.intra pipe \lsarpc fnum 0x4000returned critical
> error. Error was Call timed out: server did not respond after 10000
> milliseconds 
> Jul 22 11:20:11 lxnserver winbindd[18539]: [2008/07/22 11:20:11, 0]
> libsmb/clientgen.c:cli_receive_smb(111) 
> Jul 22 11:20:11 lxnserver winbindd[18539]:   Receiving SMB: Server
> stopped responding 
> Jul 22 11:20:11 lxnserver winbindd[18539]: [2008/07/22 11:20:11, 0]
> rpc_client/cli_pipe.c:rpc_api_pipe(790) 
> Jul 22 11:20:11 lxnserver winbindd[18539]:   rpc_api_pipe: Remote
> machine server.mydomain.intra pipe \lsarpc fnum 0x4006returned critical
> error. Error was Call timed out: server did not respond after 10000
> milliseconds 
> Jul 22 11:25:11 lxnserver winbindd[18539]: [2008/07/22 11:25:11, 0]
> libsmb/clientgen.c:cli_receive_smb(111) 
> Jul 22 11:25:11 lxnserver winbindd[18539]:   Receiving SMB: Server
> stopped responding 
> Jul 22 11:25:11 lxnserver winbindd[18539]: [2008/07/22 11:25:11, 0]
> rpc_client/cli_pipe.c:rpc_api_pipe(790) 
> Jul 22 11:25:11 lxnserver winbindd[18539]:   rpc_api_pipe: Remote
> machine server.mydomain.intra pipe \lsarpc fnum 0x4002returned critical
> error. Error was Call timed out: server did not respond after 10000
> milliseconds 
> " 
>  
> Note that it is occurring in a short time, and the server is taking
> slow. My smb.conf global session: 
> " 
> [global] 
>         username map = /etc/samba/smbusers 
>         map to guest = Bad User 
>         passdb backend = tdbsam 
>         printcap name = cups 
>         printcap cache time = 750 
>         cups options = raw 
>         printing = cups 
>         workgroup = MYINTERNALDOMAIN 
>         security = ads 
>         realm = myinternaldomain.local.intra 
>         domain logons = no 
>         domain master = no 
>         wins support = no 
>         time server = yes 
>  
>         wins server = Y.Y.Y.Y Z.Z.Z.Z
>  
>         log level = 0 
>         log file = /var/log/samba/%m.log 
>  
>         ldap admin dn =
> cn=samba-admin,ou=Admin,dc=idmap,dc=myinternal,dc=com,dc=br 
>         ldap idmap suffix = ou=Idmap 
>         ldap suffix = dc=idmap,dc=myinternal,dc=com,dc=br 
>         idmap backend = ldap:ldap://localhost 
>         idmap uid = 15000-55000 
>         idmap gid = 15000-55000 
>         template shell = /bin/bash 
>         winbind use default domain = yes 
>         template homedir = /home/%U 
>         winbind enum groups = yes 
>         winbind enum users = yes 
>         winbind cache time = 1800 
>         winbind offline logon = true 
>         acl compatibility = auto 
> " 
>  
> We use Openldap as a backend for winbind IDMAPs, have someone some kind
> of trouble like this?
> 
> Best regards,
> 
> Fabiano Felix