Re: (ITS#5354) slapd repeatedly hangs and stops reponding

[hyc@symas.com]

quanah@zimbra.com wrote:
> --On Thursday, February 07, 2008 6:56 PM -0500 Oren Laadan
> <orenl@cs.columbia.edu>  wrote:
>
>> More threads, less threads -- it still happens :(
>>
>> Attached is the last part of the log before it stopped responding
>> (you can see towards the end the time gap).
>>
>> Also attached is the backtrace of all threads (thanks to gdb).
>
> Your backtrace is fairly useless.  You need to do a make install STRIP=""
> so it doesn't strip the binaries on installation.  Or copy over the slapd
> from your build area, as that is pre-stripping.  Additionally, I'd add the
> patch from ITS#5341 to your build.
>
> Reading symbols from /usr/local/opt/ldap-2.4.7/libexec/slapd...(no
> debugging symbols found)...done.

It shows enough; back-meta is hanging waiting for responses from some other 
LDAP server. This is a pretty bad configuration; you should not use back-meta 
(or back-ldap) to redirect queries back into the same slapd. You should use 
back-relay instead.
-- 
   -- 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/