Replication issues after backup and restore of IPA Master.

Solution Unverified - Updated -

Issue

Following issues were experienced after backup and restore of IPA Master.

Issue :1

[root@ipa-mastera01 ~]$ sudo tail /var/log/dirsrv/slapd-EXAMPLE-COM/errors
[26/Jan/2018:10:41:01.287624506 +1300] - WARN - NSMMReplicationPlugin - repl5_inc_run - agmt="cn=ipa-master01.example.com-to-ipa-replica05.example.com" (ipa-replica05:389): The remote replica has a different database generation ID than the local database.  You may have to reinitialize the remote replica, or the local replica.

[26/Jan/2018:10:41:01.301151463 +1300] - WARN - NSMMReplicationPlugin - repl5_inc_run - agmt="cn=ipa-master01.example.com-to-ipa-replica04.example.com" (ipa-replica04:389): The remote replica has a different database generation ID than the local database.  You may have to reinitialize the remote replica, or the local replica.

Issue :2

After cleaning RUVs, one of the replica was showing this message.

Feb  8 14:16:25 ipa-replica06 ns-slapd: [08/Feb/2018:14:16:25.488241684 +1300] - ERR - agmt="cn=ipa-replica06.example.com-to-ipa-master01.example.com" (ipa-master01:389) - clcache_load_buffer - Can't locate CSN 5a6934c5000000090000 in the changelog (DB rc=-30988). If replication stops, the consumer may need to be reinitialized.

Environment

  • Red Hat Enterprise Linux 7.x
  • IPA

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