IdM/IPA LDAP and Red Hat Directory Server/RHDS replication halt, error Can't locate CSN number in the changelog (DB rc=-30988)
Issue
This is a report about a LDAP replication halt with error similar to this message:
[28/Sep/2016:11:27:03 +0300] agmt="cn=meTo<hostname>" (<hostname>:<PORT>) - Can't locate CSN <csn number> in the changelog (DB rc=-30988). If replication stops, the consumer may need to be reinitialized.
-
The CSN number is similar to example
57eb7dbc000000600000. -
During the problem there is no more LDAP replication from a master or supplier, this can happen with RHDS 10 or in the context of IdM / IPA.
-
IPA usually cannot replicate any changes and will report errors.
-
The error can happen either the main LDAP backend
userrootor with the PKI LDAP backend of IPAcn=masterAgreement1-hostname-fqdn-pki-tomcat. Or any replicated database in Red Hat Directory Server.
Environment
- Red Hat Directory Server (RHDS) 10
- Red Hat Enterprise Linux (RHEL) 7.2 and 7.3
- Red Hat Enterprise Linux (RHEL) 6
- Red Hat Identity Management (IPA) 4.2 , 4.3, 4.4
- 389-ds-base-1.3.4.0-33 until version 1.3.5.10-15.el7_3
- Red Hat Identity Management (IPA) 3
- 389-ds-base-1.2.11.15-75
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