[Samba] file share slowdown
Wayne
wayne.personal at mbdsoft.com
Fri Jul 15 21:26:58 MDT 2011
I will be interested in the responses. I have an issue with dbf files
where the Samba Server
maintains a lock and has to be rebooted to release.
William Hammond
On 3/7/2011 3:47 PM, James Hurlburt wrote:
> Sirs:
>
> We are a Vinyl window manufacturing plant in central Washington State,
> USA. We have been running linux with samba for file and print
> services for eight or ten years now.
>
> Much of our production software is in house, and built on CA clipper
> 5.2, using dbf files as the primary data store. The clipper dbf file
> format supports both record locking and file locking along with shared
> file access. This worked very well on Novell netware and was working
> ok on samba 3.0.23.
>
> We had a samba server running for several years. I believe it was
> 6.06 with samba 3.0.23 although I'm no longer certain of either of
> those two versions.
>
> We have about six stations running dos 6.22 and four running windows
> 98. They are part of production machines, and changing the operating
> system is not an option.
>
> I had managed to tweak the samba config file so that file sharing
> wasn't a big problem, the system was responsive and running fairly
> smoothly.
>
> We have numerous clients running winXP with no obvious problems.
>
> We are, and have been running the Samba server with User validation.
> We are part of a windows domain, but haven't figured out a way to have
> the dos machines login as domain members. The xp stations use the
> domain for authentication, then we maintain a parallel set of logins
> on the linux box and samba file server. Again, this was working OK,
> pre crash.
>
> A month or so ago, we lost two hard drives on the file server and had
> to do a rebuild. I had tried to update the samba version a time or
> two in the interem and failed. I couldn't get the dos machines to
> connect to samba and access the necessary data files. One gentleman
> on the samba list said that this was a problem with lanman protocol,
> and aparently fixed it. Samba 3.4.7 allows logins file access without
> any problems.
>
> The current problem is that shared clipper files are very slow. It
> appears as if record locking instead of file locking isn't being
> recognized by Samba. When production is going, 20 second delays for
> file access are common. This was not true six weeks ago before the
> server crash.
>
> I have studied on the smb.conf file at great length, trying several
> variations without sucess.
>
> Any advice or hints of what to study now would be most welcome,
> Jim Hurlburt
> Atrium Windows and Doors Northwest.
> Yakima, WA USA
>
> The global portion plus the mains share of the smb.conf file in
> verbose mode.
>
> *******************************************************
> # Samba config file created using SWAT
> # from UNKNOWN (10.23.0.118)
> # Date: 2011/03/07 15:23:58
>
> [global]
> dos charset = CP850
> unix charset = UTF-8
> display charset = LOCALE
> workgroup = ATRIUM-DW
> realm =
> netbios name = BBI-SAM-1-SRV
> netbios aliases =
> netbios scope =
> server string = %h server (Samba, Ubuntu)
> interfaces =
> bind interfaces only = No
> security = USER
> auth methods =
> encrypt passwords = Yes
> update encrypted = No
> client schannel = Auto
> server schannel = Auto
> allow trusted domains = Yes
> map to guest = Bad User
> null passwords = No
> obey pam restrictions = Yes
> password server = *
> smb passwd file = /etc/samba/smbpasswd
> private dir = /etc/samba
> passdb backend = tdbsam
> algorithmic rid base = 1000
> root directory =
> guest account = nobody
> enable privileges = Yes
> pam password change = Yes
> passwd program = /usr/bin/passwd %u
> passwd chat = *Enter\snew\s*\spassword:* %n\n
> *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .
> passwd chat debug = No
> passwd chat timeout = 2
> check password script =
> username map =
> password level = 0
> username level = 0
> unix password sync = Yes
> restrict anonymous = 0
> lanman auth = Yes
> ntlm auth = Yes
> client NTLMv2 auth = No
> client lanman auth = No
> client plaintext auth = No
> preload modules =
> dedicated keytab file =
> kerberos method = default
> map untrusted to domain = No
> log level = 0
> syslog = 0
> syslog only = No
> log file = /var/log/samba/log.%m
> max log size = 1000
> debug timestamp = Yes
> debug prefix timestamp = No
> debug hires timestamp = No
> debug pid = No
> debug uid = No
> debug class = No
> enable core files = Yes
> smb ports = 445 139
> large readwrite = Yes
> max protocol = NT1
> min protocol = CORE
> min receivefile size = 0
> read raw = Yes
> write raw = Yes
> disable netbios = No
> reset on zero vc = No
> acl compatibility = auto
> defer sharing violations = Yes
> nt pipe support = Yes
> nt status support = Yes
> announce version = 4.9
> announce as = NT
> max mux = 50
> max xmit = 16644
> name resolve order = lmhosts wins host bcast
> max ttl = 259200
> max wins ttl = 518400
> min wins ttl = 21600
> time server = No
> unix extensions = Yes
> use spnego = Yes
> client signing = auto
> server signing = No
> client use spnego = Yes
> client ldap sasl wrapping = plain
> enable asu support = No
> svcctl list =
> deadtime = 15
> getwd cache = Yes
> keepalive = 300
> lpq cache time = 30
> max smbd processes = 0
> paranoid server security = Yes
> max disk size = 0
> max open files = 16384
> socket options = TCP_NODELAY
> use mmap = Yes
> hostname lookups = No
> name cache timeout = 660
> ctdbd socket =
> cluster addresses =
> clustering = No
> load printers = Yes
> printcap cache time = 750
> printcap name =
> cups server =
> cups connection timeout = 30
> iprint server =
> disable spoolss = No
> addport command =
> enumports command =
> addprinter command =
> deleteprinter command =
> show add printer wizard = Yes
> os2 driver map =
> mangling method = hash2
> mangle prefix = 1
> max stat cache size = 256
> stat cache = Yes
> machine password timeout = 604800
> add user script =
> rename user script =
> delete user script =
> add group script =
> delete group script =
> add user to group script =
> delete user from group script =
> set primary group script =
> add machine script =
> shutdown script =
> abort shutdown script =
> username map script =
> logon script =
> logon path = \\%N\%U\profile
> logon drive =
> logon home = \\%N\%U
> domain logons = No
> init logon delayed hosts =
> init logon delay = 100
> os level = 20
> lm announce = Auto
> lm interval = 60
> preferred master = No
> local master = Yes
> domain master = Auto
> browse list = Yes
> enhanced browsing = Yes
> dns proxy = No
> wins proxy = No
> wins server =
> wins support = No
> wins hook =
> kernel oplocks = Yes
> lock spin time = 200
> oplock break wait time = 0
> ldap admin dn =
> ldap delete dn = No
> ldap group suffix =
> ldap idmap suffix =
> ldap machine suffix =
> ldap passwd sync = no
> ldap replication sleep = 1000
> ldap suffix =
> ldap ssl = start tls
> ldap ssl ads = No
> ldap timeout = 15
> ldap connection timeout = 2
> ldap page size = 1024
> ldap user suffix =
> ldap debug level = 0
> ldap debug threshold = 10
> eventlog list =
> add share command =
> change share command =
> delete share command =
> preload =
> lock directory = /var/run/samba
> state directory = /var/lib/samba
> cache directory = /var/cache/samba
> pid directory = /var/run/samba
> utmp directory =
> wtmp directory =
> utmp = No
> default service = global
> message command =
> get quota command =
> set quota command =
> remote announce =
> remote browse sync =
> socket address = 0.0.0.0
> homedir map = auto.home
> afs username map =
> afs token lifetime = 604800
> log nt token command =
> time offset = 0
> NIS homedir = No
> registry shares = No
> usershare allow guests = Yes
> usershare max shares = 100
> usershare owner only = Yes
> usershare path = /var/lib/samba/usershares
> usershare prefix allow list =
> usershare prefix deny list =
> usershare template share =
> panic action = /usr/share/samba/panic-action %d
> perfcount module =
> host msdfs = Yes
> passdb expand explicit = No
> idmap backend = tdb
> idmap alloc backend =
> idmap cache time = 604800
> idmap negative cache time = 120
> idmap uid =
> idmap gid =
> template homedir = /home/%D/%U
> template shell = /bin/false
> winbind separator = \
> winbind cache time = 300
> winbind reconnect delay = 30
> winbind enum users = No
> winbind enum groups = No
> winbind use default domain = No
> winbind trusted domains only = No
> winbind nested groups = Yes
> winbind expand groups = 1
> winbind nss info = template
> winbind refresh tickets = No
> winbind offline logon = No
> winbind normalize names = No
> winbind rpc only = No
> comment =
> path =
> username =
> invalid users =
> valid users =
> admin users =
> read list =
> write list =
> printer admin =
> force user =
> force group =
> read only = Yes
> acl check permissions = Yes
> acl group control = No
> acl map full control = Yes
> create mask = 0744
> force create mode = 00
> security mask = 0777
> force security mode = 00
> directory mask = 0755
> force directory mode = 00
> directory security mask = 0777
> force directory security mode = 00
> force unknown acl user = No
> inherit permissions = No
> inherit acls = No
> inherit owner = No
> guest only = No
> administrative share = No
> guest ok = No
> only user = No
> hosts allow =
> hosts deny =
> allocation roundup size = 1048576
> aio read size = 0
> aio write size = 0
> aio write behind =
> ea support = No
> nt acl support = Yes
> profile acls = No
> map acl inherit = No
> afs share = No
> smb encrypt = auto
> block size = 1024
> change notify = Yes
> directory name cache size = 100
> kernel change notify = Yes
> max connections = 0
> min print space = 0
> strict allocate = No
> strict sync = No
> sync always = No
> use sendfile = No
> write cache size = 0
> max reported print jobs = 0
> max print jobs = 1000
> printable = No
> printing = cups
> cups options =
> print command =
> lpq command = %p
> lprm command =
> lppause command =
> lpresume command =
> queuepause command =
> queueresume command =
> printer name =
> use client driver = No
> default devmode = Yes
> force printername = No
> printjob username = %U
> default case = lower
> case sensitive = Auto
> preserve case = Yes
> short preserve case = Yes
> mangling char = ~
> hide dot files = Yes
> hide special files = No
> hide unreadable = No
> hide unwriteable files = No
> delete veto files = No
> veto files =
> hide files =
> veto oplock files =
> map archive = Yes
> map hidden = No
> map system = No
> map readonly = yes
> mangled names = Yes
> store dos attributes = No
> dmapi support = No
> browseable = Yes
> access based share enum = No
> browsable = Yes
> blocking locks = Yes
> csc policy = manual
> fake oplocks = No
> locking = Yes
> oplocks = Yes
> level2 oplocks = Yes
> oplock contention limit = 2
> posix locking = Yes
> strict locking = Auto
> share modes = Yes
> dfree cache time = 0
> dfree command =
> copy =
> preexec =
> preexec close = No
> postexec =
> root preexec =
> root preexec close = No
> root postexec =
> available = Yes
> volume =
> fstype = NTFS
> set directory = No
> wide links = No
> follow symlinks = Yes
> dont descend =
> magic script =
> magic output =
> delete readonly = No
> dos filemode = No
> dos filetimes = Yes
> dos filetime resolution = No
> fake directory create times = No
> vfs objects =
> msdfs root = No
> msdfs proxy =
>
> [bestbilt]
> path = /atrium/bestbilt
> valid users = @users
> admin users = @admin
> force group = users
> read only = No
> create mask = 0664
> force create mode = 0664
> directory mask = 0775
> force directory mode = 0775
> strict locking = No
> fstype = FAT
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