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Re: (ITS#6174) Permanent high CPU Load with Multimaster

Frank.Offermanns@caseris.de wrote:
> Full_Name: Frank Offermanns
> Version: 2.4.16
> OS: Windows XP/Ubuntu 9.04
> URL: ftp://ftp.openldap.org/incoming/
> Submission from: (NULL) (217.6.189.242)
>
>
> Hello everyone,
>
> I compiled the LDAP Version 2.4.16 from CVS at 16 June with MINGW/MSYS on
> Windows. I used the latest version because every previous 2.4.16 version had
> similar problems.

There is no "latest 2.4.16" version. There is only one release with version 
number 2.4.16, whether you got it from CVS or from the web site.

> I have two systems working together as multimasters. After a random time (less
> than a day) it can happen, that a core of a CPU uses 100 % CPU Load. Both System
> seems to be working correctly, but the High CPU Load slows down everything.
> No matter how long i wait, this core stays at 100 % CPU load.
> On another test a test write operation never returned and I also had the high
> CPU load. After i killed my test write process, the slapd.exe crashed. (The
> write procees was on a another PC)

Use gdb to get traces of the active threads when the 100% CPU situation 
occurs. Likewise, use gdb to get traces when slapd crashes.

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