similar to: gencache.tdb size and cache flush

On Wed, 2018-08-29 at 15:36 +0200, Peter Eriksson via samba wrote: > For what it’s worth you are not alone in seeing similar problems with Samba and gencache. > > Our site has some 110K users (university with staff & students (including former ones), and currently around 2000 active (SMB) clients connecting to 5 different Samba servers (around 400-500 clients per server). When we

Il 04/09/18 06:00, Volker Lendecke ha scritto: > Hi! > > Technical description below, but the exec summary is: Yes, we have a > performance problem with gencache. > > On Wed, Aug 29, 2018 at 10:28:05AM +0200, Francesco Malvezzi via samba wrote: >> Hi all, >> >> I have a midsize AD domain with some 50k users but only 100 workstations >> joined. >>

On Wed, Aug 29, 2018 at 03:36:23PM +0200, Peter Eriksson via samba wrote: > For what it’s worth you are not alone in seeing similar problems with Samba and gencache. > > Our site has some 110K users (university with staff & students (including former ones), and currently around 2000 active (SMB) clients connecting to 5 different Samba servers (around 400-500 clients per server).

> Hai, > > > It might be handing to tell your OS and samba version. > A copy of smb.conf is also very handy.. oops, sorry. samba-4.8.5 compiled from source on Debian GNU/Linux 9 (stretch). smb.conf is: [global] netbios name = ADDC realm = EXAMPLE.ORG workgroup = EXAMPLEAD dns forwarder = [redacted] server role = active directory domain controller log level = 1

For what it’s worth you are not alone in seeing similar problems with Samba and gencache. Our site has some 110K users (university with staff & students (including former ones), and currently around 2000 active (SMB) clients connecting to 5 different Samba servers (around 400-500 clients per server). When we previously just let things “run” gencache.tdb would grow forever and authentication

Hi! Technical description below, but the exec summary is: Yes, we have a performance problem with gencache. On Wed, Aug 29, 2018 at 10:28:05AM +0200, Francesco Malvezzi via samba wrote: > Hi all, > > I have a midsize AD domain with some 50k users but only 100 workstations > joined. > > Sometimes I find server CPU throttling at 100%. In order to let it drop Can you find out

I’m going to try to upgrade from 4.7.6 to 4.7.7 on one of our servers soon and see if things break or not. With 4.7.6 things are stable at least. Our file servers are in a Microsoft Windows domain (consisting of 6 Microsoft Windows 2016 AD servers). The graphs (logarithmic time scale) below are login times from a probe station that times a connect using “smbclient” with a Kerberos ticket and

> For what it’s worth you are not alone in seeing similar problems with Samba and gencache. > > Our site has some 110K users (university with staff & students (including former ones), and currently around 2000 active (SMB) clients connecting to 5 different Samba servers (around 400-500 clients per server). When we previously just let things “run” gencache.tdb would grow forever and

The config looks ok, thats great. :-) Its not needed to stop samba running : net cache flush If you run: net cache list and have a look, then flush it and look again. You see its empty. If you need to copy the idmap than it is needed to stop samba. Can you show me an output of. dpkg -l | egrep "tevent|tdb|ldb|talloc|cmocka" Im running latest versions of these. Own compile or

On Tue, Sep 04, 2018 at 11:59:04AM +0200, Francesco Malvezzi wrote: > Il 04/09/18 06:00, Volker Lendecke ha scritto: > > Hi! > > > > Technical description below, but the exec summary is: Yes, we have a > > performance problem with gencache. > > > > On Wed, Aug 29, 2018 at 10:28:05AM +0200, Francesco Malvezzi via samba wrote: > >> Hi all, >

Unfortunately I didn’t seem to have saved one of those big gencache.tdb files (we don’t currently see them). Or at least I can’t seem to find them now… A while ago when we first discovered this I posted a message: https://lists.samba.org/archive/samba/2017-December/212577.html <https://lists.samba.org/archive/samba/2017-December/212577.html> I now notice that I never replied to a

On Tue, 4 Sep 2018 15:13:10 +0200 Peter Eriksson via samba <samba at lists.samba.org> wrote: > I’m going to try to upgrade from 4.7.6 to 4.7.7 on one of our servers > soon and see if things break or not. With 4.7.6 things are stable at > least. > > Our file servers are in a Microsoft Windows domain (consisting of 6 > Microsoft Windows 2016 AD servers). > > >

Is it normal that the gencache.tdb should grow and grow “forever” and fill up with “RA/<hex>” posts? I’ve been investigating why our Samba 4.7.3 servers (happened with older version 4 servers too) would use such insane amounts of memory on our FreeBSD 11.1 servers (we see smbd processes using hundreds of megabytes of RAM and up to 5GB virtual memory). Anyway, one part that seems to use

Hi Jeremy,   I got some info on that topic from the illumos devs:   > It's a sporadic issue, you're lucky enough to not encounter it on 4.9.5. > > I confirmed in 4.10.2, it happens: > > winbindd.log:  tdb(/tmw-nas-3p/samba/var/lock/gencache.tdb): tdb_open_ex: tdb_mutex_init failed for /tmw-nas-3p/samba/var/lock/gencache.tdb: Device busy > > So either apply OS fix, or

On a fresh installed Illumos/Solaris in a VirtualBox Guest I get the following error after starting up samba 4.10: [2019/04/01 09:51:41.112485, 0] ../../lib/tdb_wrap/tdb_wrap.c:64(tdb_wrap_log) tdb(/var/samba/lock/gencache.tdb): tdb_open_ex: tdb_mutex_init failed for /var/samba/lock/gencache.tdb: Device busy [2019/04/01 09:51:41.141396, 0] ../../lib/util/become_daemon.c:136(daemon_ready)

i've been integrating a Samba server into a mixed windows 2000/2003 authentication environment for use as a NAS device. i finally have things working for the most part, but in the process of debugging authentication i noticed an error when performing the following command: hmason@mpinas1:~$ smbclient -L localhost the error shows up when loglevel = 5 in smb.conf: Netbios name list:-

I run smbd 4.18.8 inside a docker container via "smbd --foreground" (see the attached config). Recently my server was abruptly restarted due to a power outage. Upon the restart it was able to successfully start the container, but the shares became inaccessible due to smbd rejecting all authentication attempts. In the logs I found: [2024/03/18 08:22:50.790021, 5]

Hi everyone, I'm having an odd issue with a Samba install - it starts SIGABORTing complaining that gencache.tdb has gone missing.. ie [2007/08/09 12:52:50, 0] lib/util_tdb.c:tdb_log(662) tdb(/var/db/samba/gencache.tdb): tdb_reopen: open failed (No such file or directory) [2007/08/09 12:52:50, 0] smbd/server.c:open_sockets_smbd(572) tdb_reopen_all failed. If I recreate it and restart

List, I have a client PC that is able to connect to my network via a VPN tunnel. When the client PC comes back to the mother ship, it acquires an ordinary network address via DHCP. In this situation, the PC is currently having problems viewing Samba printers... the printer folder takes several minutes to open all the printers, and requesting a print from an application takes a couple of minutes

I added LOG statements to mutex.c printing the strerror from the return values.   From   ret = pthread_mutexattr_init(&ma); in line 570   I got errorno 16 --> device busy.   But due the manual of pthread_mutex_attr_init() there should only be ENOMEM and EINVAL...   Doing gdb smbd -> run Doe not reveal anything, but I never used gdb for debugging anything. I just gave it a shot...