Re: [389-users] Error setting up MMR

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Steffen Blume wrote:
> Rich Megginson wrote:
>   
>> Steffen Blume wrote:
>>   
>>     
>>> Hi,
>>>
>>> I have tried to setup up multi master replication without success. The
>>> two ldap servers are running fine. Then I execute the mmr.pl script (on b):
>>> ./mmr.pl --host1 a.domain.local --host2 b.domain.local --bindpw secret
>>> --host1_id 1 --host2_id 2 --repmanpw secret --base "dc=domain, dc=local"
>>> --create
>>>
>>> --- error log on a ---
>>> [01/Sep/2010:14:11:39 +0200] NSMMReplicationPlugin -
>>> agmt="cn="Replication to b.domain.local"" (b:389): Replica has a
>>> different generation ID than the local data.
>>> [01/Sep/2010:14:11:42 +0200] NSMMReplicationPlugin - Beginning total
>>> update of replica "agmt="cn="Replication to b.domain.local"" (b:389)".
>>> [01/Sep/2010:14:11:47 +0200] NSMMReplicationPlugin - Finished total
>>> update of replica "agmt="cn="Replication to b.domain.local"" (b:389)".
>>> Sent 1375 entries.
>>> --------------------
>>>
>>> --- error log on b ---
>>> [01/Sep/2010:14:11:39 +0200] NSMMReplicationPlugin -
>>> agmt="cn="Replication to a.domain.local"" (a:389): Replica has a
>>> different generation ID than the local data.
>>> [01/Sep/2010:14:11:40 +0200] NSMMReplicationPlugin -
>>> repl_set_mtn_referrals: could not set referrals for replica
>>> dc=domain,dc=local: 32
>>> [01/Sep/2010:14:11:40 +0200] NSMMReplicationPlugin -
>>> multimaster_be_state_change: replica dc=domain,dc=local is going
>>> offline; disabling replication
>>> [01/Sep/2010:14:11:41 +0200] - somehow, there are still 200 entries in
>>> the entry cache. :/
>>> [01/Sep/2010:14:11:42 +0200] - WARNING: Import is running with
>>> nsslapd-db-private-import-mem on; No other process is allowed to access
>>> the database
>>> [01/Sep/2010:14:11:46 +0200] - import userRoot: Workers finished;
>>> cleaning up...
>>> [01/Sep/2010:14:11:46 +0200] - import userRoot: Workers cleaned up.
>>> [01/Sep/2010:14:11:46 +0200] - import userRoot: Indexing complete.
>>> Post-processing...
>>> [01/Sep/2010:14:11:46 +0200] - import userRoot: Flushing caches...
>>> [01/Sep/2010:14:11:46 +0200] - import userRoot: Closing files...
>>> [01/Sep/2010:14:11:46 +0200] - somehow, there are still 200 entries in
>>> the entry cache. :/
>>> [01/Sep/2010:14:11:47 +0200] - import userRoot: Import complete.
>>> Processed 1375 entries in 5 seconds. (275.00 entries/sec)
>>> [01/Sep/2010:14:11:47 +0200] NSMMReplicationPlugin -
>>> multimaster_be_state_change: replica dc=domain,dc=local is coming
>>> online; enabling replication
>>> [01/Sep/2010:14:11:47 +0200] NSMMReplicationPlugin -
>>> _replica_configure_ruv: failed to create replica ruv tombstone entry
>>> (dc=domain, dc=local); LDAP error - 68
>>>   
>>>     
>>>       
>> This means the RUV entry or some other MMR state information was left 
>> over from a previous configuration attempt.  Err=68 is Already Exists - 
>> the entry already exists.
>>
>> Since this fails, nothing else is going to work.
>>   
>>     
>>> [01/Sep/2010:14:11:47 +0200] NSMMReplicationPlugin -
>>> replica_enable_replication: reloading ruv failed
>>> [01/Sep/2010:14:11:49 +0200] NSMMReplicationPlugin -
>>> _replica_configure_ruv: failed to create replica ruv tombstone entry
>>> (dc=domain, dc=local); LDAP error - 68
>>> [01/Sep/2010:14:12:19 +0200] NSMMReplicationPlugin -
>>> _replica_configure_ruv: failed to create replica ruv tombstone entry
>>> (dc=domain, dc=local); LDAP error - 68
>>> [01/Sep/2010:14:12:49 +0200] NSMMReplicationPlugin -
>>> _replica_configure_ruv: failed to create replica ruv tombstone entry
>>> (dc=domain, dc=local); LDAP error - 68
>>> [01/Sep/2010:14:13:19 +0200] NSMMReplicationPlugin -
>>> _replica_configure_ruv: failed to create replica ruv tombstone entry
>>> (dc=domain, dc=local); LDAP error - 68
>>> [01/Sep/2010:14:13:49 +0200] NSMMReplicationPlugin -
>>> _replica_configure_ruv: failed to create replica ruv tombstone entry
>>> (dc=domain, dc=local); LDAP error - 68
>>> --------------------
>>>
>>> So what do the errors "repl_set_mtn_referrals: could not set referrals"
>>> and "_replica_configure_ruv: failed to create replica ruv tombstone
>>> entry" mean?
>>>
>>> The messages on b stop, when I restart the ldap server. But the
>>> replication is not working.
>>>     
>>>       
>> Since MMR setup failed, no MMR is going to work.
>>   
>>     
>>> On the first replication setup not all the
>>> data was copied. I removed the replication configuration with mmr.pl
>>>     
>>>       
>> I think this is the problem.  Either mmr.pl does not cleanly remove the 
>> replication configuration, or there is a bug in the server.  For 
>> example, see https://bugzilla.redhat.com/show_bug.cgi?id=624442
>>   
>>     
>>> and
>>> set it up again with same error messages.
>>> When I change something (in uid=sbl,ou=people,...) on a the error log of
>>> a shows
>>> --- error log on a ---
>>> [01/Sep/2010:14:35:20 +0200] NSMMReplicationPlugin -
>>> agmt="cn="Replication to b.domain.local"" (b:389): Replica has a
>>> different generation ID than the local data.
>>> [01/Sep/2010:14:35:24 +0200] NSMMReplicationPlugin -
>>> agmt="cn="Replication to b.domain.local"" (b:389): Replica has a
>>> different generation ID than the local data.
>>> [01/Sep/2010:14:35:28 +0200] NSMMReplicationPlugin -
>>> agmt="cn="Replication to b.domain.local"" (b:389): Replica has a
>>> different generation ID than the local data.
>>> ...
>>> --------------------
>>>   
>>>     
>>>       
>> This means the consumer was not initialized properly.
>>   
>>     
>>> Nothing in error log on b. But in access log:
>>>
>>> --- acces log on b ---
>>> [01/Sep/2010:14:35:20 +0200] conn=0 op=3 SRCH base="ou=People,
>>> dc=domain, dc=local" scope=1 filter="(objectClass=*)" attrs="objectClass"
>>> [01/Sep/2010:14:35:20 +0200] conn=0 op=7 EXT
>>> oid="2.16.840.1.113730.3.5.3" name="Netscape Replication Start Session"
>>> [01/Sep/2010:14:35:20 +0200] conn=0 op=7 RESULT err=0 tag=120 nentries=0
>>> etime=0
>>> [01/Sep/2010:14:35:20 +0200] conn=0 op=8 EXT
>>> oid="2.16.840.1.113730.3.5.5" name="Netscape Replication End Session"
>>> [01/Sep/2010:14:35:20 +0200] conn=0 op=8 RESULT err=0 tag=120 nentries=0
>>> etime=0
>>> [01/Sep/2010:14:35:20 +0200] conn=0 op=3 RESULT err=0 tag=101
>>> nentries=100 etime=0 notes=U
>>> [01/Sep/2010:14:35:20 +0200] conn=0 op=4 SRCH base="ou=People,
>>> dc=domain, dc=local" scope=1 filter="(objectClass=*)" attrs="objectClass"
>>> [01/Sep/2010:14:35:20 +0200] conn=0 op=4 RESULT err=0 tag=101
>>> nentries=82 etime=0
>>> [01/Sep/2010:14:35:24 +0200] conn=0 op=10 EXT
>>> oid="2.16.840.1.113730.3.5.3" name="Netscape Replication Start Session"
>>> [01/Sep/2010:14:35:24 +0200] conn=0 op=10 RESULT err=0 tag=120
>>> nentries=0 etime=0
>>> [01/Sep/2010:14:35:24 +0200] conn=0 op=11 EXT
>>> oid="2.16.840.1.113730.3.5.5" name="Netscape Replication End Session"
>>> [01/Sep/2010:14:35:24 +0200] conn=0 op=11 RESULT err=0 tag=120
>>> nentries=0 etime=0
>>> [01/Sep/2010:14:35:25 +0200] conn=0 op=5 SRCH
>>> base="uid=sbl,ou=People,dc=domain,dc=local" scope=0
>>> filter="(objectClass=*)" attrs=ALL
>>> [01/Sep/2010:14:35:25 +0200] conn=0 op=5 RESULT err=0 tag=101 nentries=1
>>> etime=0
>>> [01/Sep/2010:14:35:27 +0200] conn=0 op=12 EXT
>>> oid="2.16.840.1.113730.3.5.3" name="Netscape Replication Start Session"
>>> [01/Sep/2010:14:35:27 +0200] conn=0 op=12 RESULT err=0 tag=120
>>> nentries=0 etime=0
>>> [01/Sep/2010:14:35:27 +0200] conn=0 op=13 EXT
>>> oid="2.16.840.1.113730.3.5.5" name="Netscape Replication End Session"
>>> [01/Sep/2010:14:35:27 +0200] conn=0 op=13 RESULT err=0 tag=120
>>> nentries=0 etime=0
>>> ...
>>> --------------------
>>>
>>> Both 389 DS versions are 1.2.4. I compiled it myself for OpenSolaris
>>> (SunOS 5.11 snv_111b)
>>>   
>>>     
>>>       
>> Try 1.2.6.  There have been many, many bug fixes between 1.2.4 and 1.2.6.
>>   
>>     
> I compiled 1.2.6 today and installed it on A and B. I converted my 
> database on A to the new format. Then I set up a new clean instance on B 
> and tried to set up replication. The error log on B gave me some errors 
> about entries without parents. So I decided to export my whole data 
> (userRoot) on A into an ldif, set up a new clean instance on A and B, 
> import the data on A and set up replication using the mmr script again.
> And again I got the error message: "failed to create replica ruv 
> tombstone entry (dc=domain,dc=local); LDAP error - 68" And the initial 
> copy is not complete!
>   
Would it be possible for you to reproduce on Fedora?
> Replication info is stored below netscapeRoot that I did not ex- or 
> import, so this cannot be the problem this time, right?
>
> I don't think, the error logs are helpful but here they are for 
> completeness:
>
> --- errors on A ---
>         389-Directory/1.2.6 B2010.253.730
>         a.domain.local:636 (/usr/ldap/etc/dirsrv/slapd-a)
>
> [10/Sep/2010:17:59:34 +0200] - 389-Directory/1.2.6 B2010.253.730 starting up
> [10/Sep/2010:17:59:35 +0200] - slapd started.  Listening on All 
> Interfaces port 389 for LDAP requests
> [10/Sep/2010:17:59:35 +0200] - Listening on All Interfaces port 636 for 
> LDAPS requests
> [10/Sep/2010:18:01:28 +0200] NSMMReplicationPlugin - 
> agmt="cn=Replication to b.domain.local" (b:389): Replica has a different 
> generation ID than the local data.
> [10/Sep/2010:18:01:32 +0200] NSMMReplicationPlugin - Beginning total 
> update of replica "agmt="cn=Replication to b.domain.local" (b:389)".
> [10/Sep/2010:18:01:37 +0200] NSMMReplicationPlugin - Finished total 
> update of replica "agmt="cn=Replication to b.domain.local" (b:389)". 
> Sent 1375 entries.
> --------------------------
>
> --- errors on B ---
>        389-Directory/1.2.6 B2010.253.730
>         b.domain.local:636 (/usr/ldap/etc/dirsrv/slapd-b)
>
> [10/Sep/2010:17:58:28 +0200] - 389-Directory/1.2.6 B2010.253.730 starting up
> [10/Sep/2010:17:58:29 +0200] - slapd started.  Listening on All 
> Interfaces port 389 for LDAP requests
> [10/Sep/2010:17:58:29 +0200] - Listening on All Interfaces port 636 for 
> LDAPS requests
> [10/Sep/2010:18:01:29 +0200] NSMMReplicationPlugin - 
> agmt="cn=Replication to a.domain.local" (a:389): Replica has a different 
> generation ID than the local data.
> [10/Sep/2010:18:01:30 +0200] NSMMReplicationPlugin - 
> multimaster_be_state_change: replica dc=domain,dc=local is going 
> offline; disabling replication
> [10/Sep/2010:18:01:31 +0200] - entrycache_clear_int: there are still 6 
> entries in the entry cache. :/
> [10/Sep/2010:18:01:31 +0200] - dncache_clear_int: there are still 6 dn's 
> in the dn cache. :/
> [10/Sep/2010:18:01:31 +0200] - WARNING: Import is running with 
> nsslapd-db-private-import-mem on; No other process is allowed to access 
> the database
> [10/Sep/2010:18:01:35 +0200] - import userRoot: Workers finished; 
> cleaning up...
> [10/Sep/2010:18:01:36 +0200] - import userRoot: Workers cleaned up.
> [10/Sep/2010:18:01:36 +0200] - import userRoot: Indexing complete.  
> Post-processing...
> [10/Sep/2010:18:01:36 +0200] - import userRoot: Flushing caches...
> [10/Sep/2010:18:01:36 +0200] - import userRoot: Closing files...
> [10/Sep/2010:18:01:36 +0200] - entrycache_clear_int: there are still 17 
> entries in the entry cache. :/
> [10/Sep/2010:18:01:36 +0200] - dncache_clear_int: there are still 1375 
> dn's in the dn cache. :/
> [10/Sep/2010:18:01:36 +0200] - import userRoot: Import complete.  
> Processed 1375 entries in 5 seconds. (275.00 entries/sec)
> [10/Sep/2010:18:01:36 +0200] NSMMReplicationPlugin - 
> multimaster_be_state_change: replica dc=domain,dc=local is coming 
> online; enabling replication
> [10/Sep/2010:18:01:36 +0200] NSMMReplicationPlugin - 
> _replica_configure_ruv: failed to create replica ruv tombstone entry 
> (dc=domain,dc=local); LDAP error - 68
> [10/Sep/2010:18:01:36 +0200] NSMMReplicationPlugin - 
> replica_enable_replication: reloading ruv failed
> [10/Sep/2010:18:01:38 +0200] NSMMReplicationPlugin - 
> _replica_configure_ruv: failed to create replica ruv tombstone entry 
> (dc=domain,dc=local); LDAP error - 68
> [10/Sep/2010:18:02:08 +0200] NSMMReplicationPlugin - 
> _replica_configure_ruv: failed to create replica ruv tombstone entry 
> (dc=domain,dc=local); LDAP error - 68
> --------------------------
>
>   

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