Re: (ITS#6920) OpenLDAP 2.4.25 / Berkeley DB 4.8.30 Solaris 10 x86 slapd hangs

[hyc@symas.com]

mslby@deshaw.com wrote:
> Full_Name: Mark Selby
> Version: 2.4.25
> OS: Solaris 10 x86
> URL: ftp://ftp.openldap.org/incoming/
> Submission from: (NULL) (149.77.104.214)
>
>
> My company uses OpenLDAP 2.4.25 with Berkeley DB 4.8.30 compiled on Solaris
> 10 x86 using Sun Studio. OpenLDAP is used as the backend for generic naming
> services (passwd, group, netgroup etc?) as well as holding mail routing and
> some custom data. We have master and slave servers and are using syncrepl
> refresh and persist.
>
> Lately we have been experiencing hangs with slapd and I cannot figure out
> what the cause is. Things will be humming along and then slapd will simply
> stop accepting connections and answering any requests for reads/writes. We
> have set the loglevel to 256 and there is nothing in the logs that
> indicates what the issue it. At the time that the process goes catatonic all
> syslogs from slapd stop
>
> I have not found a way to reproduce this on demand.
>
> Today we have had three hangs and the truss ouput is exactly the same on
> all process. Once the slapd process gets in this state a simple kill does
> not work. The syslog always says that slapd is waiting for tasks to
> complete but this never happens. I need to kill -9 the pid.
>
> I am going to include all of the debug info that I have collected and
> hopefully someone will have some idea what is going on. I also have a gcore
> of the process if anyone wants and info from that
>
> All and any help is greatly appreciated

This appears to be a dup of ITS#6833. Your OS is broken. Closing this ITS.

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