Re: Shared memory error after reboot

[Howard Chu <hyc@symas.com>]

Quanah Gibson-Mount wrote:
> --On Wednesday, January 16, 2019 3:03 PM +0100 Marc Roos <M.Roos@f1-outsourcing.eu> wrote:
> 
>>
>>
>> I am getting this error after (re)booting, if I restart slapd it is
>> gone. I guess I can ignore this message because slapd will recover from
>> this eventually? Or do I need to give it a restart every time?
>>
>>
>> After reboot:
>>
>> jan 16 14:57:19 mail04 slapd[3283]: @(#) $OpenLDAP: slapd 2.4.44 (Oct 30
>> 2018 23:14:27)
>> $#012#011mockbuild@x86-01.bsys.centos.org:/builddir/build/BUILD/openldap
>> -2.4.44/openldap-2.4.44/servers/slapd
>> Jan 16 14:57:19 mail04 slapd[3283]: syncrepl rid=504
>> searchbase="dc=backoffice,dc=local": no retry defined, using default
>> Jan 16 14:57:19 mail04 slapd[3285]: bdb(dc=backoffice,dc=local): BDB0118
>> shmat: id 884736: unable to attach to shared system memory region:
>> Invalid argument
> 
> It means:
> 
> a) You're using shared memory regions with a BDB backend
> b) That slapd is not cleanly shut down on a reboot.  It sounds like perhaps you have a broken init system.

Must point out - this is not a fatal error, otherwise slapd would not have continued startup.
The backend inits a new shared memory region and just starts up as normal, there's no reason
to take any special action here.

> I would note that BDB based backends are deprecated.  It's advised to use back-mdb instead.

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