[Fedora-directory-users] Re: A multi-master disaster

Edward Capriolo edlinuxguru at gmail.com
Mon Jul 7 19:12:12 UTC 2008


Interesting point. I did create the database (suffix and top objects)
from LDIF files. I noticed how o=netscaperoot was setup...

dn: cn="o=netscaperoot", cn=mapping tree, cn=config

cn: "o=netscaperoot"
cn: o=netscaperoot


dn: cn="dc=edops,dc=com",cn=mapping tree, cn=config

cn: dc=edops,dc=com

I noticed that the quoted entry was missing. I added this entry and
the replication works. In the past I had always used the console tool
to create the database backends.

Missing the quoted entry caused some features to work and some
features not to work.

Thank you for 'laser guiding' me to a better target. This was a big help!


I still get this error on updates...but this seems like a warning
[07/Jul/2008:15:05:09 -0400] NSMMReplicationPlugin -
repl_set_mtn_referrals: could not set referrals for replica
dc=aboutops,dc=com: 1

On Mon, Jul 7, 2008 at 1:36 PM, Ulf Weltman <ulf.weltman at hp.com> wrote:
> Quotes are expected to be escaped in the access log.  I wonder if you have a
> space in the cn value of the mapping node, that is, something like
> cn="dc=edops, dc=com".  That would allow the import to succeed but the node
> would not be found without the space to set the referral.  Compare the
> mapping tree entries in the dse.ldif files on your two replicas.
>
> Edward Capriolo wrote:
>
> [07/Jul/2008:12:56:49 -0400] conn=2 op=167 SRCH base="cn=repl,
> cn=replica, cn=\22dc=edops,dc=com\22, cn=mapping tree, cn=config"
> scope=0 filter="(|(objectClass=*)(objectClass=ldapsubentry))"
> attrs="nsds5replicaLastUpdateStart nsds5replicaLastUpdateEnd
> nsds5replicaChangesSentSinceStartup nsds5replicaLastUpdateStatus
> nsds5replicaUpdateInProgress nsds5replicaLastInitStart
> nsds5replicaLastInitEnd nsds5replicaLastInitStatus
> nsds5BeginReplicaRefresh"
>
> To follow up. Are these entries being escaped for the log or is it
> that the console tool is generating these incorrectly? I had similar
> \22 trying to configure ACI from the gui.
>
>
> On Mon, Jul 7, 2008 at 11:17 AM, Edward Capriolo <edlinuxguru at gmail.com>
> wrote:
>
>
> Sorry for the funny title. I THINK* this may be a bug of multi-master
> replication agreement created from the Windows Version of the Console
> Tool but I was hoping someone could shed some light on this. I have
> set up multi master replication before and did not run into this
> issue.
>
>
> I go about the normal process described in the documentation to setup
> a multi-master replication agreement for only one suffix of my
> directory server. dc_edops_dc_com.
> Enable changelog
> Select multi-master replication
> Give each server a unique id
>
> I initialize the side of the connection with data. (I also have tried
> using ldif to get both sides in sync before the transfer. )
>
> On the side I initialize from I get these messages in the error log.
>
> [02/Jul/2008:18:25:19 -0400] - import dc_edops_dc_com: Workers
> finished; cleaning up...
> [02/Jul/2008:18:25:19 -0400] - import dc_edops_dc_com: Workers cleaned up.
> [02/Jul/2008:18:25:19 -0400] - import dc_edops_dc_com: Cleaning up
> producer thread...
> [02/Jul/2008:18:25:19 -0400] - import dc_edops_dc_com: Indexing
> complete.  Post-processing...
> [02/Jul/2008:18:25:19 -0400] - import dc_edops_dc_com: Flushing caches...
> [02/Jul/2008:18:25:19 -0400] - import dc_edops_dc_com: Closing files...
> [02/Jul/2008:18:25:19 -0400] - import dc_edops_dc_com: Import
> complete.  Processed 42 entries in 2 seconds. (21.00 entries/sec)
> [02/Jul/2008:18:25:19 -0400] NSMMReplicationPlugin -
> multimaster_be_state_change: replica dc=edops,dc=com is coming online;
> enabling replication
> [02/Jul/2008:18:25:20 -0400] NSMMReplicationPlugin -
> repl_set_mtn_referrals: could not set referrals for replica
> dc=edops,dc=com : 32
>
> At this point actually multi-master replication is enabled, but the B
> side of the connection has some strange referral to the A side. When I
> connect to side B of the replication it seems like there is one more
> level there.
>
> Does anyone understand why this simple setup would not be working?
>
>
>
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