[389-users] replication issues with promoting hub to master

Tue Nov 8 16:41:12 UTC 2011

All,

I am having issues with replication breaking once I promote a hub to a multi-master.  My test set-up has a master/hub/slave environment using basic replication.  This works as intended.  However, once I select multi-master and set the replica id for the hub/new master, replication no longer works to the new master to the slave.

The only thing that I have been able to do is disable replication on the new master, re-enable replication, create a new replication id and setup a new replication agreement and re-initializing the slave.  Is there a way to get replication working on a promoted hub without completely tearing down the existing replication setup and re-initializing the slave?

Thanks

Cary Anderson, System Software Specialist
UNIX/Linux Services
Data Center Section
Information Technology Services Branch
Technology Services & Support Division
Phone: (916) 795-2588
Fax: (916) 795-2424
Email: Cary Anderson at calpers.ca.gov<mailto:Cary at calpers.ca.gov>
From: 389-users-bounces at lists.fedoraproject.org [mailto:389-users-bounces at lists.fedoraproject.org] On Behalf Of Rich Megginson
Sent: Tuesday, November 08, 2011 7:29 AM
To: SHAW-MILLER, JOHN (Synetrix)
Cc: General discussion list for the 389 Directory server project.
Subject: Re: [389-users] 389 Suddenly Stops......

On 11/08/2011 08:27 AM, SHAW-MILLER, JOHN (Synetrix) wrote:
Its CentosDS - but the other server doesn't have the issue?
It may be an issue of operation origin - it may be that it is a problem with the processing of the original operation, or with the processing on the server that gets the operation as a replicated operation.

I suggest upgrading.  If you'd rather not, then I suggest following the steps http://directory.fedoraproject.org/wiki/FAQ#Debugging_Crashes

regards,

John Shaw-Miller
Senior Unix Consultant
ISP Services
ITNS Professional Services

M: 07920 824938 F:01252 405605
E: john.shaw-miller at synetrix.co.uk<mailto:john.shaw-miller at synetrix.co.uk>
E: john.shaw-miller at capita.co.uk<mailto:john.shaw-miller at capita.co.uk>

Synetrix House, 49-51 Victoria Road
Farnborough, Hampshire, GU14 7PA
http://www.synetrix.co.uk.uk<http://www.synetrix.co.uk.uk/>
Part of The Capita Group plc www.capita.co.uk<http://www.capita.co.uk>

From: Rich Megginson [mailto:rmeggins at redhat.com]
Sent: 08 November 2011 15:24
To: General discussion list for the 389 Directory server project.
Cc: SHAW-MILLER, JOHN (Synetrix)
Subject: Re: [389-users] 389 Suddenly Stops......

On 11/08/2011 05:55 AM, SHAW-MILLER, JOHN (Synetrix) wrote:
Hi Rich,

To answer your questions

Centos 5.6 X64
389-DS - 8.1.0 - Build 2009.134.1334
rpm -qi 389-ds-base
or are you running redhat-ds-base or centos-ds-base?
If this really is redhat-ds-base or centos-ds-base 8.1, I strongly encourage you to upgrade.

Yes I have full administrative rights across all directory servers with an ACL
The process doesn't run, it just drops right out - no core dumps, nothing, and the log files really aren't helpful but I intend to try and "crash" it again and see if I can find out whats happening.

The ONLY log entry in /var/log/messages is to a segfault

Nov  7 14:08:35 cc-teh-pds-01 kernel: ns-slapd[8677]: segfault at 00000036c682e824 rip 00002b4232552842 rsp 000000004f0c2cd0 error 7
Is this segfault from around the time the server stops responding?  If so, then this is likely the cause.

See http://directory.fedoraproject.org/wiki/FAQ#Debugging_Crashes for information about how to get more information from server crashes.

regards,

John Shaw-Miller
Senior Unix Consultant
ISP Services
ITNS Professional Services

M: 07920 824938 F:01252 405605
E: john.shaw-miller at synetrix.co.uk<mailto:john.shaw-miller at synetrix.co.uk>
E: john.shaw-miller at capita.co.uk<mailto:john.shaw-miller at capita.co.uk>

Synetrix House, 49-51 Victoria Road
Farnborough, Hampshire, GU14 7PA
http://www.synetrix.co.uk.uk<http://www.synetrix.co.uk.uk/>
Part of The Capita Group plc www.capita.co.uk<http://www.capita.co.uk>

From: 389-users-bounces at lists.fedoraproject.org<mailto:389-users-bounces at lists.fedoraproject.org> [mailto:389-users-bounces at lists.fedoraproject.org] On Behalf Of Rich Megginson
Sent: 07 November 2011 15:08
To: General discussion list for the 389 Directory server project.
Cc: SHAW-MILLER, JOHN (Synetrix)
Subject: Re: [389-users] 389 Suddenly Stops......

On 11/07/2011 07:17 AM, SHAW-MILLER, JOHN (Synetrix) wrote:
All,

I am wondering if any of you can help with this ......

Scenario:
                I log into 389 using my own credentials (not the directory manager), I have full permissions on all directory servers
What platform?  What version of 389-ds-base?
What do you mean by "I have full permissions on all directory servers" - do you mean you have set up an ACI for your user to grant administrative access to your directory server data?

Result:
                389 Directory Server stops on the logged on server, nothing in the logs, and PID is still there
Can you be more specific about what you mean by "stops"?  Is the process still running?  If so, is it not accepting any new connections?  Is it running at 100% cpu?  Is there anything in the errors log from around the time it "stops"?  Are there any core files in /var/log/dirsrv/slapd-INSTANCE?

Recovery:
                Restart the service....
When you restart the service, do you see any "disorderly shutdown detected" messages in the errors log?  Any slapd messages in /var/log/messages?

Has anyone seen this before?  It DOESN'T occur if I log in as the Directory Manager, and replication is unaffected - it just starts up again when the service is restarted

regards,

John Shaw-Miller
Senior Unix Consultant
ISP Services
ITNS Professional Services

M: 07920 824938 F:01252 405605
E: john.shaw-miller at synetrix.co.uk<mailto:john.shaw-miller at synetrix.co.uk>
E: john.shaw-miller at capita.co.uk<mailto:john.shaw-miller at capita.co.uk>

Synetrix House, 49-51 Victoria Road
Farnborough, Hampshire, GU14 7PA
http://www.synetrix.co.uk.uk<http://www.synetrix.co.uk.uk/>
Part of The Capita Group plc www.capita.co.uk<http://www.capita.co.uk>

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