[Samba] samba-ad-dc.service: Got notification message from PID 27448, but reception only permitted for main PID 27410

Rowland Penny rpenny at samba.org
Tue Aug 31 20:50:02 UTC 2021


On Tue, 2021-08-31 at 21:18 +0100, Roy Eastwood via samba wrote:
> I agree, now works.   Which leaves the WiKi incorrect as it still
> recommends Type=forking etc.    I assume this should be updated to
> (adapted for self-compiled version)?:
> 

I am going to throw a hand grenade in here, after reading 'man
systemd.service , I now think that 'Type' shouldn't be set at all!

With this samba-ad-dc.service file:

[Unit]
Description=Samba AD Daemon
Documentation=man:samba(8) man:samba(7) man:smb.conf(5)
Wants=network-online.target
After=network.target network-online.target

[Service]
PIDFile=/run/samba/samba.pid
LimitNOFILE=16384
EnvironmentFile=-/etc/default/samba
ExecStart=/usr/sbin/samba --foreground --no-process-group $SAMBAOPTIONS
ExecReload=/bin/kill -HUP $MAINPID


[Install]
WantedBy=multi-user.target

Results in this:

● samba-ad-dc.service - Samba AD Daemon
   Loaded: loaded (/lib/systemd/system/samba-ad-dc.service; enabled;
vendor preset: enabled)
   Active: active (running) since Tue 2021-08-31 21:38:06 BST; 8s ago
     Docs: man:samba(8)
           man:samba(7)
           man:smb.conf(5)
 Main PID: 15307 (samba)
    Tasks: 57 (limit: 4915)
   CGroup: /system.slice/samba-ad-dc.service
           ├─15307 samba: root process
           ├─15309 samba: tfork waiter process(15310)
           ├─15310 samba: task[s3fs] pre-fork master
           ├─15311 samba: tfork waiter process(15313)
           ├─15312 samba: tfork waiter process(15314)
           ├─15313 samba: task[rpc] pre-fork master
           ├─15314 /usr/sbin/smbd -D --option=server role
check:inhibit=yes --foreground
           ├─15315 samba: tfork waiter process(15316)
           ├─15316 samba: task[nbt] pre-fork master
           ├─15317 samba: tfork waiter process(15319)
           ├─15318 samba: tfork waiter process(15320)
           ├─15319 samba: task[rpc] pre-forked worker(0)
           ├─15320 samba: task[wrepl] pre-fork master
           ├─15321 samba: tfork waiter process(15325)
           ├─15322 samba: tfork waiter process(15323)
           ├─15323 samba: task[ldap] pre-fork master
           ├─15324 samba: tfork waiter process(15326)
           ├─15325 samba: task[rpc] pre-forked worker(1)
           ├─15326 samba: task[cldap] pre-fork master
           ├─15327 samba: tfork waiter process(15330)
           ├─15328 samba: tfork waiter process(15329)
           ├─15329 samba: task[rpc] pre-forked worker(2)
           ├─15330 samba: task[kdc] pre-fork master
           ├─15331 samba: tfork waiter process(15334)
           ├─15332 samba: tfork waiter process(15333)
           ├─15333 samba: task[drepl] pre-fork master
           ├─15334 samba: task[rpc] pre-forked worker(3)
           ├─15335 samba: tfork waiter process(15338)
           ├─15336 samba: tfork waiter process(15337)
           ├─15337 samba: task[kdc] pre-forked worker(0)
           ├─15338 samba: task[winbindd] pre-fork master
           ├─15339 samba: tfork waiter process(15342)
           ├─15340 samba: tfork waiter process(15343)
           ├─15341 samba: tfork waiter process(15348)
           ├─15342 samba: task[kdc] pre-forked worker(1)
           ├─15343 samba: task[ntp_signd] pre-fork master
           ├─15344 samba: tfork waiter process(15346)
           ├─15345 samba: tfork waiter process(15349)
           ├─15346 samba: task[kcc] pre-fork master
           ├─15347 samba: tfork waiter process(15350)
           ├─15348 /usr/sbin/winbindd -D --option=server role
check:inhibit=yes --foreground
           ├─15349 samba: task[kdc] pre-forked worker(2)
           ├─15350 samba: task[dnsupdate] pre-fork master
           ├─15351 samba: tfork waiter process(15352)
           ├─15352 samba: task[kdc] pre-forked worker(3)
           ├─15359 /usr/sbin/smbd -D --option=server role
check:inhibit=yes --foreground
           ├─15360 /usr/sbin/smbd -D --option=server role
check:inhibit=yes --foreground
           ├─15361 /usr/sbin/smbd -D --option=server role
check:inhibit=yes --foreground
           ├─15363 winbindd: domain child [SAMDOM]
           ├─15364 samba: tfork waiter process(15365)
           ├─15365 samba: task[ldap] pre-forked worker(0)
           ├─15366 samba: tfork waiter process(15367)
           ├─15367 samba: task[ldap] pre-forked worker(1)
           ├─15368 samba: tfork waiter process(15369)
           ├─15369 samba: task[ldap] pre-forked worker(2)
           ├─15370 samba: tfork waiter process(15371)
           └─15371 samba: task[ldap] pre-forked worker(3)

Aug 31 21:38:07 rpidc2 samba[15307]: [2021/08/31 21:38:07.380345,  0]
../../source4/samba/server.c:920(binary_smbd_main)
Aug 31 21:38:07 rpidc2 samba[15307]:   binary_smbd_main: samba: using
'prefork' process model
Aug 31 21:38:07 rpidc2 samba[15307]: [2021/08/31 21:38:07.609089,  0]
../../lib/util/become_daemon.c:136(daemon_ready)
Aug 31 21:38:07 rpidc2 samba[15307]:   daemon_ready: daemon 'samba'
finished starting up and ready to serve connections
Aug 31 21:38:08 rpidc2 smbd[15314]: [2021/08/31 21:38:08.245451,  0]
../../lib/util/become_daemon.c:136(daemon_ready)
Aug 31 21:38:08 rpidc2 smbd[15314]:   daemon_ready: daemon 'smbd'
finished starting up and ready to serve connections
Aug 31 21:38:08 rpidc2 winbindd[15348]: [2021/08/31
21:38:08.338432,  0]
../../source3/winbindd/winbindd_cache.c:3206(initialize_winbindd_cache)
Aug 31 21:38:08 rpidc2 winbindd[15348]:   initialize_winbindd_cache:
clearing cache and re-creating with version number 2
Aug 31 21:38:08 rpidc2 winbindd[15348]: [2021/08/31
21:38:08.343985,  0] ../../lib/util/become_daemon.c:136(daemon_ready)
Aug 31 21:38:08 rpidc2 winbindd[15348]:   daemon_ready: daemon
'winbindd' finished starting up and ready to serve connections

And 'pstree' shows this:

systemd─┬─agetty
        ├─samba─┬─tfork(15310)───s3fs[master]───tfork(15314)───smbd─┬─c
leanupd
        │       │                                                   ├─l
pqd
        │       │                                                   └─s
mbd-notifyd
        │       ├─tfork(15313)───rpc[master]─┬─tfork(15319)───rpc(0)
        │       │                            ├─tfork(15325)───rpc(1)
        │       │                            ├─tfork(15329)───rpc(2)
        │       │                            └─tfork(15334)───rpc(3)
        │       ├─tfork(15316)───nbt[master]
        │       ├─tfork(15320)───wrepl[master]
        │       ├─tfork(15323)───ldap[master]─┬─tfork(15365)───ldap(0)
        │       │                             ├─tfork(15367)───ldap(1)
        │       │                             ├─tfork(15369)───ldap(2)
        │       │                             └─tfork(15371)───ldap(3)
        │       ├─tfork(15326)───cldap[master]
        │       ├─tfork(15330)───kdc[master]─┬─tfork(15337)───kdc(0)
        │       │                            ├─tfork(15342)───kdc(1)
        │       │                            ├─tfork(15349)───kdc(2)
        │       │                            └─tfork(15352)───kdc(3)
        │       ├─tfork(15333)───drepl[master]
        │       ├─tfork(15338)───winbindd[master───tfork(15348)───winbi
ndd───winbindd
        │       ├─tfork(15343)───ntp_signd[master]
        │       ├─tfork(15346)───kcc[master]
        │       └─tfork(15350)───dnsupdate[master]

It is all working for myself.

Rowland
 




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