Hello,

I am having two problems one i think an issue with mirrormode replication, and two i think the docs might be are wrong for mirrormode.

The openldap admin quide states :

MirrorMode node 1:

# Global section serverID 1 # database section

# syncrepl directive syncrepl rid=001 provider=ldap://ldap-sid2.example.com bindmethod=simple binddn="cn=mirrormode,dc=example,dc=com" credentials=mirrormode searchbase="dc=example,dc=com" schemachecking=on type=refreshAndPersist retry="60 +"

mirrormode on

MirrorMode node 2:

# Global section serverID 2 # database section

# syncrepl directive syncrepl rid=001 provider=ldap://ldap-sid1.example.com bindmethod=simple binddn="cn=mirrormode,dc=example,dc=com" credentials=mirrormode searchbase="dc=example,dc=com" schemachecking=on type=refreshAndPersist retry="60 +"

mirrormode on

I have configured something like this, and it does an initial syncronise, but subsquent writes to "node 1" are not replicated to node 2.

Eg. changes to data use "ldap.example.com" LDAP are always made to node 1 (ldap://ldap-sid1.example.com), and only to node 2 (ldap://ldap-sid2.example.com) if node 1 is unavailable (via a content switch).

When a change happens via node 1, i get :

Node 1 (seems to be correct):

Jun 18 10:42:46 qgmlr01 slapd[492]: [ID 939789 local4.debug] syncprov_sendresp: to=002, cookie=rid=001,sid=001,csn=20090618004246.225914Z#000000#001#000000 Jun 18 10:42:46 qgmlr01 slapd[492]: [ID 905511 local4.debug] do_syncrep2: cookie=rid=001,sid=002,csn=20090618004246.225914Z#000000#001#000000 Jun 18 10:42:46 qgmlr01 slapd[492]: [ID 977386 local4.debug] syncrepl_entry: rid=001 LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_ADD) Jun 18 10:42:46 qgmlr01 slapd[492]: [ID 565591 local4.debug] syncrepl_entry: rid=001 be_search (0) Jun 18 10:42:46 qgmlr01 slapd[492]: [ID 709484 local4.debug] syncrepl_entry: rid=001 mail=user@popmail.example.com,jvd=popmail.example.com,o=hosting,dc=example,dc=com Jun 18 10:42:46 qgmlr01 slapd[492]: [ID 819441 local4.debug] syncrepl_entry: rid=001 entry unchanged, ignored (mail=user@popmail.example.com,jvd=popmail.example.com,o=hosting,dc=example,dc=com) Jun 18 10:42:46 qgmlr01 slapd[492]: [ID 784563 local4.debug] syncprov_matchops: skipping relayed sid 002

Node 2 (indicates a problem maybe):

Jun 18 10:42:46 qgmlr02 slapd[12018]: [ID 905511 local4.debug] do_syncrep2: cookie=rid=001,sid=001,csn=20090618004246.225914Z#000000#001#000000 Jun 18 10:42:46 qgmlr02 slapd[12018]: [ID 977386 local4.debug] syncrepl_entry: rid=001 LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_MODIFY) Jun 18 10:42:46 qgmlr02 slapd[12018]: [ID 565591 local4.debug] syncrepl_entry: rid=001 be_search (0) Jun 18 10:42:46 qgmlr02 slapd[12018]: [ID 709484 local4.debug] syncrepl_entry: rid=001 mail=user@popmail.example.com,jvd=popmail.example.com,o=hosting,dc=example,dc=com Jun 18 10:42:46 qgmlr02 slapd[12018]: [ID 824931 local4.debug] syncprov_matchops: skipping original sid 001 Jun 18 10:42:46 qgmlr02 slapd[12018]: [ID 939789 local4.debug] syncprov_sendresp: to=001, cookie=rid=001,sid=002,csn=20090618004246.225914Z#000000#001#000000 Jun 18 10:42:46 qgmlr02 slapd[12018]: [ID 933660 local4.debug] syncrepl_entry: rid=001 be_modify mail=sitescop@popmail.example.com,jvd=popmail.example.com,o=hosting,dc=example,dc=com (0) Jun 18 10:42:46 qgmlr02 slapd[12018]: [ID 824931 local4.debug] syncprov_matchops: skipping original sid 001

I'm presuming it is wrong (correct me if i am wrong) as the second change change from node 2 is coming in, using the same sid as node 1, hence "skipping original sid 001"

In previous example configs, each mirrormode node has had two rid's, 001 for "node 1" and 002 for "node 2" so the protocol can tell which node made the change, one node should accept the change as it came from the other node, the other should reject it as it came from itself.

FYI, The previous example was something like below (eg. node 1, same for node 2 but with "serverID 2") :

# Global section serverID 1 # database section

# syncrepl directive syncrepl rid=001 provider=ldap://ldap-sid1.example.com bindmethod=simple binddn="cn=mirrormode,dc=example,dc=com" credentials=mirrormode searchbase="dc=example,dc=com" schemachecking=on type=refreshAndPersist retry="60 +"

syncrepl rid=002 provider=ldap://ldap-sid2.example.com bindmethod=simple binddn="cn=mirrormode,dc=example,dc=com" credentials=mirrormode searchbase="dc=example,dc=com" schemachecking=on type=refreshAndPersist retry="60 +"

mirrormode on

Is this still required ? I thought mirrormode meant any node may be updated, but typically always the same one (unless one fails).

Cheers Brett