Re: ldapsearch performance debugging

[Howard Chu <hyc@symas.com>]

Chris Hane wrote:
> Howard,
>
> Thanks!  The strace did it.  It showed me that it was delaying on a 
> poll() event to our dns servers.  Once I fixed that, all is working like 
> I expect.

Glad to hear it. Please keep all replies on the mailing list, so that 
others can also see the resolution of the question.
> Thanks again,
> Chris....
>
> Howard Chu wrote:
> > Chris Hane wrote:
> > > When I execute the following command:
> > >
> > > ldapsearch -v -x -b "dc=abmas,dc=biz" -d 5 -h 127.0.0.1
> > >
> > > there is a significant lag between hitting return and when I see the 
> > > debug output - 6-8 seconds.
> > >
> > > I'm pretty sure this is a configuration problem or network problem on 
> > > my end as this same command in a different environment executes 
> > > immediately.
> > >
> > > To help me isolate where the problem is, is there another method to 
> > > debug what ldapsearch is doing before I see the first lines listed in 
> > > the debug output with -d 5?  Or is there another utility I could use 
> > > than ldapsearch?
> >
> > Try using strace and see what system calls get executed and where the 
> > delay is. Alternatively you could try running ldapsearch under gdb and 
> > interrupting it to get a stack trace from where the delay occurs.


--
  -- Howard Chu
  Chief Architect, Symas Corp.  http://www.symas.com
  Director, Highland Sun        http://highlandsun.com/hyc
  OpenLDAP Core Team            http://www.openldap.org/project/