search for: cpuflamegraphs

...e have problem with samba4 with centos cpu 100%. ? > > > > Attached my config. > > Where is it spinning? > > With all the required debug packages installed, then run it under > perf > and generate a flame graph per: > > http://www.brendangregg.com/FlameGraphs/cpuflamegraphs.html > > The resulting .svg file is often quite enlightening. > > Andrew Bartlett Also, how many users, groups and in particular group members in each group (and in total)? If you have large numbers of group members, then Samba 4.5 will help a lot. Thanks, --  Andrew Bartlett...

On 23/09/2019 20:41, Andrew Bartlett wrote: > On Mon, 2019-09-23 at 11:25 +0200, Francesco Malvezzi via samba wrote: >> hi all, >> >> I updated a small domain with 8k object to samba-4.11.0 and the >> database >> conversion from v1 to v2 didn't take a noticeable time. >> >> On the other hand, in a larger domain with 67k object, where the >>

...he high-cpu use, at the time it is in that state, run (matching the commands our mailing list user has run): Work out which PIDs are high CPU use: netstat -avp | grep <PID> gdb -p <PID> bt full strace -p <PID> as well as a FlameGraph: https://www.brendangregg.com/FlameGraphs/cpuflamegraphs.html#Instructions I would love to get to the bottom of this. Andrew Bartlett -- Andrew Bartlett (he/him) https://samba.org/~abartlet/ Samba Team Member (since 2001) https://samba.org Samba Team Lead, Catalyst IT https://catalyst.net.nz/services/samba Samba Development and Support, Cata...

...the commands our mailing list user has > run): > > Work out which PIDs are high CPU use: > > netstat -avp | grep <PID> > > gdb -p <PID> > bt full > > strace -p <PID> > > as well as a FlameGraph: > https://www.brendangregg.com/FlameGraphs/cpuflamegraphs.html#Instructions > > I would love to get to the bottom of this. > Andrew Bartlett > > > -- > Andrew Bartlett (he/him)?????? https://samba.org/~abartlet/ > Samba Team Member (since 2001) https://samba.org > Samba Team Lead, Catalyst IT?? https://catalyst.net.nz/service...

...%. ? > > > > > > Attached my config. > > > > Where is it spinning? > > > > With all the required debug packages installed, then run it under > > perf > > and generate a flame graph per: > > > > http://www.brendangregg.com/FlameGraphs/cpuflamegraphs.html > > > > The resulting .svg file is often quite enlightening. > > > > Andrew Bartlett > > Also, how many users, groups and in particular group members in each > group (and in total)? > > If you have large numbers of group members, then Samba 4.5 will help...

Hello, im authenticating my Owncloud aigainst one of my three domain controller and add a second one of it as failover. The authentication works pretty well. When im trying to share files or folders i have the problem, that it takes a lot of time until i get the username i want to share. Compared to my open ldap the samba4 ad needs about 10-15 seconds more to find a result, thats pretty

...r confirming that. I think you are probably hitting some pathological behaviours at the TDB layer when handling so many records, perhaps in the free list. The way to debug this, if you are keen to, is to do a debug build of Samba run get a flame graph per: http://www.brendangregg.com/FlameGraphs/cpuflamegraphs.html#Instructions That will get us a better idea of which routines are 'hot' during your in-place upgrade. I do wish you the very best with this and am keen to ensure this works really well for you. Andrew Bartlett -- Andrew Bartlett https://samba.org/~abartlet/ Au...

hello, I often have the problem of high load on the LDAP processes. 1-3 LDAP processes cause 100% cpu load for approx. 10 sec. This happens regularly in intervals of 2-3 minutes. How can I find out which client is causing this load and why? How can I configure the logging to see who/what is causing the LDAP process? We have about 5000 users, 4000 clients in our AD with 4 DCs with Samba 4.16.4.

Thanks Rowland for the Reply On 04/11/20 5:44 pm, Rowland penny via samba wrote: > On 04/11/2020 12:02, Biswajit Banerjee via samba wrote: >> My Apologies >> >> It is? Windows 2008 AD >> > In which case, it should work, so what OS are you using ? Centos 8 > > Are you using OS samba packages or have you compiled Samba yourself ? Complied > > All you really

...t certainly wasn't meant to be a 5-hour offline operation, even for massive databases. If anyone in this thread is able to put the upgrade under a perf and produce a flame graph, that would be an awesome start to understanding what has gone wrong here. http://www.brendangregg.com/FlameGraphs/cpuflamegraphs.html#Instructions I'm assuming this is on TDB and not LMDB? Thanks! Andrew Bartlett -- Andrew Bartlett http://samba.org/~abartlet/ Authentication Developer, Samba Team http://samba.org Samba Developer, Catalyst IT http://catalyst.net.nz/services/samba

Am 05.03.20 um 10:48 schrieb Stefan G. Weichinger via samba: > Am 05.03.20 um 10:40 schrieb Rowland penny via samba: >> On 05/03/2020 08:34, Stefan G. Weichinger via samba wrote: > >>> downgrade or fix ;-)? ? >>> >> This hit me yesterday, restart the DC, check with 'ps ax' and I think >> you will find that only 'Samba' has started. If so

Hi Group, i have 3 DC with samba4 with Centos 7, they are showing the CPU with 100% in all DC. The centos 7 is the basic installation and samba4 compile.I have 2.000 machine authenticated in this DC, is WinX, Win7, Win8 and Win10 . Someone have problem with samba4 with centos cpu 100%. ? Attached my config. Tks. -------------- next part -------------- Press enter to see a dump of your service