Jacek Nykis wrote:
> On Wednesday 29 September 2010 14:04:38 Gerrard Geldenhuis wrote:
>
>> Hi
>> I have setup chaining but it is not working at all and I am not sure how to
>> debug it further.
>>
>> I am using:
>> 389-admin-1.1.11-0.6.rc2.el5
>> 389-admin-console-1.1.5-1.el5
>> 389-admin-console-doc-1.1.5-1.el5
>> 389-adminutil-1.1.8-4.el5
>> 389-console-1.1.4-1.el5
>> 389-ds-1.2.1-1.el5
>> 389-ds-base-1.2.6-0.11.rc7.el5
>> 389-ds-console-1.2.3-1.el5
>> 389-ds-console-doc-1.2.3-1.el5
>> 389-dsgw-1.1.5-1.el5
>>
>> The setup is 4 servers, two multimasters and two consumers. Client can only
>> speak to the consumers and thus referrals won't work.
>>
>>
>> I have used the following ldif to setup chaining:
>>
>> dn: cn=chainingBackend,cn=chaining database,cn=plugins,cn=config
>> changetype: add
>> objectClass: top
>> objectClass: extensibleObject
>> objectClass: nsBackendInstance
>> cn: chainingBackend
>> nsslapd-suffix: dc=mycompany
>> nsmultiplexorbinddn: cn=replication manager,cn=config
>> nsusestarttls: on
>> nsfarmserverurl: ldaps://masterfqdn1:636 masterfqdn2:636/
>> nsmultiplexorcredentials: {SSHA}blah
>> nsbindconnectionslimit: 5
>> nsconcurrentoperationslimit: 5
>> nsconnectionlife: 130
>> nsbindtimeout: 3
>> nsbindretrylimit: 3
>> nsmaxresponsedelay: 3
>> nsmaxtestresponsedelay: 5
>>
>> dn: cn=dc\3dmycompany,cn=mapping tree,cn=config
>> changetype: modify
>> add: nsslapd-backend
>> nsslapd-backend: chainingBackend
>> -
>> replace: nsslapd-state
>> nsslapd-state: backend
>> -
>> replace: nsslapd-distribution-plugin
>> nsslapd-distribution-plugin:
>> /usr/lib64/dirsrv/plugins/libreplication-plugin.so -
>> replace: nsslapd-distribution-funct
>> nsslapd-distribution-funct: repl_chain_on_update
>>
>>
>> dn: cn=config,cn=chaining database,cn=plugins,cn=config
>> changetype: modify
>> add: nsTransmittedControls
>> nsTransmittedControls: 2.16.840.1.113730.3.4.12
>>
>> The ACI has been created to allow the Replication Manager user proxy
>> access.
>>
>> When I run the following on the client:
>>
>> dn: uid=john,ou=people,dc=mycompany
>> changetype: modify
>> add: mobile
>> mobile: 1234
>>
>> The entry gets added but only locally, it thus seems to be completely
>> ignoring the chaining I have setup. I see the following in the consumer
>> log after creation:
>>
>> [29/Sep/2010:13:00:11 +0000] start_tls - Received extended operation
>> request with OID 1.3.6.1.4.1.1466.20037 [29/Sep/2010:13:00:11 +0000]
>> start_tls - Start TLS extended operation request confirmed.
>> [29/Sep/2010:13:00:11 +0000] start_tls - Start TLS request accepted.Server
>> willing to negotiate SSL. [29/Sep/2010:13:00:11 +0000] start_tls -
>> Starting SSL Handshake.
>> [29/Sep/2010:13:00:11 +0000] NS7bitAttr - MODIFY begin
>> [29/Sep/2010:13:00:11 +0000] NSMMReplicationPlugin - Purged state
>> information from entry uid=rytis,ou=People,dc=betfair up to CSN
>> 4c99ec08000000010000 [29/Sep/2010:13:00:12 +0000] roles-plugin - -->
>> roles_post_op
>> [29/Sep/2010:13:00:12 +0000] roles-plugin - --> roles_cache_change_notify
>> [29/Sep/2010:13:00:12 +0000] roles-plugin - <-- roles_cache_change_notify:
>> not a role entry [29/Sep/2010:13:00:12 +0000] roles-plugin - <--
>> roles_post_op
>>
>>
>> There is some other replay failure errors which I am not sure is related.
>> Having done the the test twice I did not see the replay errors again in
>> the master log. I am going to simplify my test environment as I currently
>> have 4 servers which all are verbal about replication and I multimaster
>> netscapedb which adds to the complications.
>>
>> I have enabled Replication and Plug-ins for the error log, is there any
>> other recommended logs that I should enable that can assist me in
>> debugging chaining issues.
>>
>
> Hi,
> I am working with Gerrard on this issue. I took some packet captures and it
> would seem that chaining in fact picks up updates but it does not handle them
> properly.
>
> Our design is:
> Client ----> Slave ----> Master
>
> We chain all updates on slave to master and client only has access to slave.
> We also have replication from master to slave.
>
> When I try to make an update here is what happens between client and slave:
> bindRequest(1) "uid=xxxx,ou=People,dc=xxxx" simple
> bindResponse(1) success
> modifyRequest(2) "uid=xxx,ou=people,dc=xxx"
> modifyResponse(2) operationsError
> unbindRequest(3)
>
> At the same time between slave and master:
> searchRequest(1) "<ROOT>" baseObject
> searchResEntry(1) "<ROOT>" | searchResDone(1) success [1 result]
> unbindRequest(2)
>
> This does not look correct (no modification request at all goes to master).
>
Right, because it is rejected on the slave due to operationsError
> Does anybody know what the problem could be or where to look for it?
>
>
>> Best Regards
>>
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