[Samba] Samba not closing connection

Tue Apr 21 00:52:36 GMT 2009

Hi

I am scratching my head wondering why my Samba has stopped closing
connections when they are finished/closed on the client side.

These samba processes seem to be consuming 100% CPU.  lsof show that no file
in the samba shares are open, in use.

/var/log/message

Apr 20 14:47:33 astro smbd[4364]: [2009/04/20 14:47:33, 0]
smbd/nttrans.c:call_nt_transact_ioctl(2463)

Apr 20 14:47:33 astro smbd[4364]:   call_nt_transact_ioctl(0x9009c):
Currently not implemented.

Apr 20 14:57:44 astro smbd[4361]: nss_ldap: reconnected to LDAP server
ldap://10.10.150.1 after 1 attempt

Apr 20 15:10:17 astro smbd[4393]: [2009/04/20 15:10:17, 0]
lib/util_sock.c:read_data(534)

Apr 20 15:10:17 astro smbd[4393]:   read_data: read failure for 4 bytes to
client 10.10.150.221. Error = No route to host

Apr 20 15:23:34 astro smbd[4361]: nss_ldap: reconnected to LDAP server
ldap://10.10.150.1 after 1 attempt

Apr 20 15:23:58 astro smbd[4364]: nss_ldap: reconnected to LDAP server
ldap://10.10.150.1 after 1 attempt

Apr 20 15:28:22 astro smbd[4357]: nss_ldap: reconnected to LDAP server
ldap://10.10.150.1 after 1 attempt

Apr 20 15:39:15 astro smbd[4539]: [2009/04/20 15:39:15, 0]
lib/util_sock.c:read_data(534)

Apr 20 15:39:15 astro smbd[4539]:   read_data: read failure for 4 bytes to
client 10.10.150.117. Error = Connection timed out

Apr 20 15:55:00 astro smbd[4358]: nss_ldap: reconnected to LDAP server
ldap://10.10.150.1 after 1 attempt

Apr 20 16:02:51 astro smbd[4357]: nss_ldap: reconnected to LDAP server
ldap://10.10.150.1 after 1 attempt

Apr 20 16:24:45 astro smbd[4364]: nss_ldap: reconnected to LDAP server
ldap://10.10.150.1 after 1 attempt

Apr 20 16:25:40 astro smbd[4361]: nss_ldap: reconnected to LDAP server
ldap://10.10.150.1 after 1 attempt

Apr 20 16:30:11 astro smbd[4357]: nss_ldap: reconnected to LDAP server
ldap://10.10.150.1 after 1 attempt

Apr 20 16:47:53 astro smbd[4358]: nss_ldap: reconnected to LDAP server
ldap://10.10.150.1 after 1 attempt

Apr 20 17:15:43 astro smbd[4558]: [2009/04/20 17:15:43, 0]
lib/util_sock.c:read_data(534)

Apr 20 17:15:43 astro smbd[4558]:   read_data: read failure for 4 bytes to
client 10.10.150.117. Error = No route to host

Apr 20 17:17:54 astro smbd[4556]: [2009/04/20 17:17:54, 0]
lib/util_sock.c:read_data(534)

Apr 20 17:17:54 astro smbd[4556]:   read_data: read failure for 4 bytes to
client 10.10.150.117. Error = No route to host

O/S                       =  Centos 5.2

Samba                  =  samba-3.0.33-3.7.el5

Ldap                      =  openldap-2.3.43-3.el5

Smb.conf

[global]

        workgroup = BIG

        realm = BIG.LOCAL

        server string = Samba Server

        security = ADS

        password server = it.bigr.local

        use kerberos keytab = yes

        log file = /var/log/samba/%m.log

        max log size = 50

        smb ports = 139

        socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192

        printcap name = /etc/printcap

        preferred master = No

        dns proxy = No

        cups options = raw

        admin users = Administrator

        inherit permissions = Yes

        add machine script = /usr/sbin/useradd -d /dev/null -g samba-clients
-s /bin/false -M %u

[database]

        comment = database

        path = /database

        read only = No

        force user = Administrator

        force group = biggroup

        create mask = 0770

        directory mask = 0770

[linuxdata]

        comment = linuxdata

        path = /linuxdata

        read only = No

        force user = Administrator

        force group = biggroup

        create mask = 0770

        directory mask = 0770 

/etc/ldap.conf

host 10.10.10.1

base dc=big,dc=local

uri ldap://it.big.local/

binddn cn=ldapbinder,cn=Users,dc=big,dc=local

bindpw password

scope sub

ssl no

nss_base_passwd dc=big,dc=local

nss_base_shadow dc= big,dc=local

nss_base_group dc= big,dc=local

nss_map_objectclass posixAccount user

nss_map_objectclass shadowAccount user

nss_map_objectclass posixGroup group

nss_map_attribute uid sAMAccountName

nss_map_attribute uidNumber msSFU30UidNumber

nss_map_attribute gidNumber msSFU30GidNumber

nss_map_attribute loginShell msSFU30LoginShell

nss_map_attribute gecos name

nss_map_attribute userPassword msSFU30Password

nss_map_attribute homeDirectory msSFU30HomeDirectory

nss_map_attribute uniqueMember msSFU30PosixMember

nss_map_attribute cn cn

nss_reconnect_tries 2

TOP Cpu(s): 99.9%us,  0.1%sy,  0.0%ni,  0.0%id,  0.0%wa,  0.0%hi,  0.0%si,
0.0%st

Mem:   3916620k total,  3625000k used,   291620k free,    29936k buffers

Swap:  4194296k total,      172k used,  4194124k free,  3240604k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND

 4345 root      25   0  150m 3376 1820 R   50  0.1 215:14.48 smbd

 4528 root      25   0  150m 3644 2048 R   50  0.1 191:09.17 smbd

 4531 root      25   0  150m 3680 2236 R   50  0.1 199:27.87 smbd

 4535 root      25   0  150m 3652 2056 R   50  0.1 192:43.74 smbd

 4550 root      25   0  150m 3680 2236 R   50  0.1 192:55.93 smbd

 4554 root      25   0  150m 3680 2236 R   50  0.1 194:07.02 smbd

 4543 root      25   0  150m 3688 2244 R   34  0.1 189:16.96 smbd

 4527 root      25   0  150m 3680 2236 R   33  0.1 212:02.97 smbd

 4534 root      25   0  150m 3680 2236 R   33  0.1 202:57.34 smbd

 3662 root      18   0 10180  644  552 S    0  0.0   0:08.22 hald-addon-stor

 5343 root      16   0 24212 2128 1448 S    0  0.1   0:03.44 top

    1 root      15   0 10316  680  568 S    0  0.0   0:01.56 init

Thanks 

Aaron