Hallo all,
Last week I am trying to solve strange problem. Suddenly without no system config change the samba stops work properly.
Symptoms:
- it hangs after few days or hours (a worse case), there are many processes (from hundreds to thousands of smbd processes)
- no new connection can be established
- it happend regardless of samba package version, I've tried all available versions from 3.0.6-2.3E to 3.0.14a-1
System info:
- RHEL 3 Update 4 + available updates
- computer is a domain member controlled by another samba (2.2.8a) with ldap backend)
- problematic computer is a file server under medium/high load (about 50 clients read and write to it gigabytes of data)
/etc/samba/smb.conf
# Global parameters
[global]
workgroup = SYSTINET
server string = Buildsrv
security = DOMAIN
password server = 10.0.0.3
encrypted passwords = yes log level = 10
log file = /var/log/samba/%m.log
max log size = 5000 wins server = 10.0.0.3
smb ports = 139 445
name resolve order = hosts wins bcastmax smbd processes = 5000
socket options = IPTOS_LOWDELAY TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192 SO_KEEPALIVE
load printers = No
dns proxy = No
ldap ssl = no read raw = no
level2 oplocks = true domain master = no
domain logons = no
local master = nodont descend = /proc,/dev,/lost+found,/BUILD/lost+found
[buildsrv]
comment = Share to store data etc.
path = /BUILD
force user = builder
force group = users
read only = No
create mask = 0644
directory mask = 0775
force directory mode = 0775
guest ok = Yes
use sendfile = Yes
write cache size = 65536I noticed weird messages in nmbd.log:
[2005/05/15 02:50:27, 4] nmbd/nmbd_workgroupdb.c:find_workgroup_on_subnet(162)
find_workgroup_on_subnet: workgroup search for SYSTINET on subnet UNICAST_SUBNET: found.
[2005/05/15 02:50:27, 4] nmbd/nmbd_workgroupdb.c:find_workgroup_on_subnet(162)
find_workgroup_on_subnet: workgroup search for SYSTINET on subnet UNICAST_SUBNET: found.
[2005/05/15 02:50:27, 10] lib/util_sock.c:read_udp_socket(230)
read_udp_socket: lastip 10.0.0.209 lastport 138 read: 215
[2005/05/15 02:50:27, 5] libsmb/nmblib.c:read_packet(757)
Received a packet of len 215 from (10.0.0.209) port 138
[2005/05/15 02:50:27, 10] nmbd/nmbd_subnetdb.c:namelist_entry_compare(69)
nmbd_subnetdb:namelist_entry_compare()
-1 == memcmp( "SYSTINET<1d>", "SYSTINET<1e>", 84 )
[2005/05/15 02:50:27, 10] nmbd/nmbd_subnetdb.c:namelist_entry_compare(69)
nmbd_subnetdb:namelist_entry_compare()
1 == memcmp( "SYSTINET<1d>", "SYSTINET<00>", 84 )
[2005/05/15 02:50:27, 9] nmbd/nmbd_namelistdb.c:find_name_on_subnet(129)
find_name_on_subnet: on subnet 10.0.0.56 - name SYSTINET<1d> NOT FOUND
[2005/05/15 02:50:27, 5] nmbd/nmbd_packets.c:process_dgram(1194)
process_dgram: ignoring dgram packet sent to name SYSTINET<1d> from 10.0.0.209
[2005/05/15 09:04:26, 4] nmbd/nmbd_workgroupdb.c:dump_workgroups(271)
dump_workgroups()
dump workgroup on subnet 10.0.0.56: netmask= 255.255.254.0:
SYSTINET(1) current master browser = AUTHCZ
BUILDSRV 40009b03 (Buildsrv)
AUTHCZ 400c9b2b (AuthCZ PDC)
[2005/05/15 09:04:26, 4] nmbd/nmbd_workgroupdb.c:dump_workgroups(271)
dump_workgroups()
dump workgroup on subnet UNICAST_SUBNET: netmask= 0.0.0.0:
SYSTINET(1) current master browser = UNKNOWN
BUILDSRV 40009b03 (Buildsrv)
[2005/05/15 09:04:26, 4] nmbd/nmbd_workgroupdb.c:find_workgroup_on_subnet(162)
find_workgroup_on_subnet: workgroup search for SYSTINET on subnet UNICAST_SUBNET: found.
[2005/05/15 09:04:26, 4] nmbd/nmbd_workgroupdb.c:find_workgroup_on_subnet(162)
find_workgroup_on_subnet: workgroup search for SYSTINET on subnet UNICAST_SUBNET: found.
[2005/05/15 09:04:36, 4] nmbd/nmbd_workgroupdb.c:find_workgroup_on_subnet(162)
find_workgroup_on_subnet: workgroup search for SYSTINET on subnet 10.0.0.56: found.
[2005/05/15 09:04:36, 10] nmbd/nmbd_sendannounce.c:announce_myself_to_domain_master_browser(382)
announce_myself_to_domain_master_browser: t (1116140666) - last(1116139866) < 900
[2005/05/15 09:04:36, 4] nmbd/nmbd_workgroupdb.c:dump_workgroups(271)
dump_workgroups()
dump workgroup on subnet 10.0.0.56: netmask= 255.255.254.0:
SYSTINET(1) current master browser = AUTHCZ
BUILDSRV 40009b03 (Buildsrv)
AUTHCZ 400c9b2b (AuthCZ PDC)
[2005/05/15 09:04:36, 4] nmbd/nmbd_workgroupdb.c:dump_workgroups(271)
dump_workgroups()
dump workgroup on subnet UNICAST_SUBNET: netmask= 0.0.0.0:
SYSTINET(1) current master browser = UNKNOWN
BUILDSRV 40009b03 (Buildsrv)
Does anybody know what's going on there? I have no clue. Thank you in advance, z.p.
-- Zdenek Pizl Systinet Corporation Vinohradska 190 13000 Praha 3
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