Re: This is a new thread

[Howard Chu <hyc@symas.com>]

Tony Earnshaw wrote:
> This has nothing to do with that thread, but has been worrying me:
>
> Our production RHAS4 site with 4 OpenLDAP 2.3 servers (1 delta syncrepl 
> provider, 3 consumers) has been running exemplararily (new word?) since 
> ~= 2.3.27.
>
> All servers were running 2.3.33 perfectly, then I built 2.3.34 and on 
> just one of the servers (the master), after around 4 hours of it doing 
> hard work, I see (top) the slapd process consuming 98-99% CPU. The CPU 
> consumption is never relinquished, even if I wait for hours (ouch). If I 
> reinstall 2.3.33 this goes away and all is back to normal.

For this, absolutely, make sure you have debug symbols, attach with gdb and 
get a stack trace for all active threads.

> On my (discrete=nothing to do with the others) test rig, 2.3.34 from the 
> same batch also functions perfectly.
>
> Where should I be looking?
>
> System and build details for all rigs:
>
> OS Red Hat RHAS4, completely up2date
> All, but all software built and installed as rpms
>
> My own-built db4-4.2.52 rpms with all patches (Red Hat's doesn't have 
> all patches)
>
> For the OpenLDAP 2.3 rpms I'm using Buchan Milne's 2.4.24 srpm spec 
> file, basically only modified each build for the version, so that all 
> the %prep, %configure and %build stages are the same for all builds - 
> irrespective of OL version.
>
> Ta in advance,

Quite far in advance, we're only on 2.4.4 here.

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