[Samba] Samba 4.3 ldapsearch response time > 5 secs.

[Garming Sam]

Hi,


25,000 is definitely higher than what I would reasonably expect Samba
4.3 to handle. It should be significantly better in more recent versions
(preferably to 4.7.5 by joining a new DC). When you have slow responses,
is that with a number of concurrent users (or is it possible that there
are specific users that are consistently slow)?


Cheers.


On 07/03/18 01:49, Kitsda Yonpladyod wrote:
>
> Dear Garming,
>
>
> Thank you for your answer and sorry for asking in the wrong lists.
>
>
> My samba have more than 25,000.- users.
>
> When I try to reverse the search expression. It look better
>
> but I notice that there are still slow response sometimes.
>
>
> Regards,
>
>
> Kritsada Yonpaladyod
>
>
>
> ------------------------------------------------------------------------
> *From:* Garming Sam <garming at catalyst.net.nz>
> *Sent:* 05 March 2018 21:36
> *To:* Kitsda Yonpladyod
> *Cc:* Samba List
> *Subject:* Re: Samba 4.3 ldapsearch response time > 5 secs.
>  
> Hi,
>
> User issues should generally go to samba at lists.samba.org which I've cc'd.
>
> How large is your database/how many users do you have? Is it still slow
> if you reverse the search expression
> (&(sAMAccountName=XXXX)(objectClass=person))? There have been a large
> number of performance improvements made since 4.3, so upgrading to the
> latest versions might be a good idea before any additional investigation.
>
> Cheers,
>
> Garming
>
> On 05/03/18 20:27, Kitsda Yonpladyod via samba-technical wrote:
> > Dear Friends,
> >
> >
> > I have problem with samba 4.3 AD DC, response times
> >
> > below are my ldapsearch time responses
> >
> >
> > Kritsada-MacBook-Pro:~ kitsda$ ldapExecTime=`/usr/bin/time -lp
> ldapsearch -h true.care -p 389 -b "DC=true,DC=care" -D
> "CN=U-SVC-CMDB,OU=Users,OU=Standard,OU=Controls,OU=02-Resources,DC=true,DC=care"
> -w Password -l 300 -z 1000
> "(&(objectClass=person)(sAMAccountName=Sutanya))" cn sAMAccountName`
> >
> > real        10.82
> >
> > user         0.01
> >
> > sys          0.00
> >
> >    5406720  maximum resident set size
> >
> >          0  average shared memory size
> >
> >          0  average unshared data size
> >
> >          0  average unshared stack size
> >
> >       1390  page reclaims
> >
> >          0  page faults
> >
> >          0  swaps
> >
> >          0  block input operations
> >
> >          0  block output operations
> >
> >         15  messages sent
> >
> >         30  messages received
> >
> >          0  signals received
> >
> >          6  voluntary context switches
> >
> >         29  involuntary context switches
> >
> >
>