PingDirectory

Viewing the LDAP change sequence numbers

About this task

The changelog displays the server state information, which is important for failover between servers during synchronization operations. The server state information is exchanged between the servers in the network (LDAP servers and replication servers) as part of the protocol start message. It also helps the client application determine which server is most up-to-date.

Steps

  • Make sure the uid=admin account has the necessary access rights to the cn=changelog backend.

    Example:

    $ bin/ldapsearch --hostname ds.example.com --port 636 --useSSL
--bindDN "uid=admin,dc=example,dc=com" --bindPasswordFile admin-password.txt
--baseDN cn=changelog --dontWrap "(objectclass=*)" "+"

    Result:

    dn: cn=changelog

dn: changeNumber=1,cn=changelog
entry-size-bytes: 182
targetUniqueId: 68147342-1f61-3465-8489-3de58c532130
changeTime: 20111023002624Z
lastReplicaCSN: 0000011D27184D9E303000000001
replicationCSN: 0000011D27184D9E303000000001
replicaIdentifier: 12336

dn: changeNumber=2,cn=changelog
entry-size-bytes: 263
targetUniqueId: 4e9b7847-edcb-3791-b11b-7505f4a55af4
changeTime: 20111023002624Z
lastReplicaCSN: 0000011D27184F2E303000000002
replicationCSN: 0000011D27184F2E303000000002
replicaIdentifier: 12336