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Re: provider crash on high replication load
Marc Patermann wrote:
I have the following problem:
On a sycrepl provider I have lots (100+) consumers in refresh and
After upgrading the provider from 2.3.x to 2.4.25 I can crash the server
by a single mod on the root object of one database.
Aug 15 14:18:37 trzs721boot kernel: [544888.798212] slapd:
segfault at 0 ip 00007fbf89494522 sp 00007fbe8cfa7ca0 error 4 in
I reproduced this on a test system, even with 2.4.26. The consumer are
ldapsearch clients like this "-E!sync=rp/rid=xxx,csn= * +" on a single
2.4.25 machine. All SLES 11 SP1 64bit.
Here is the gbd output.
I tried to create a core dump, but I could not get it work.
I used this howto. The "top" example works, I get a core file for user
ldap. With slapd it is not.
Why does slapd crash here?
This looks like the same trace as ITS#6892, but that was already patched/fixed
in 2.4.26. Need a bit more info from the crash. E.g.
-- Howard Chu
CTO, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc/
Chief Architect, OpenLDAP http://www.openldap.org/project/