Identity Management/IPA LDAP replication halt, in star topology scenario, error "Incremental update failed and requires administrator action"
Issue
Identity Management (IdM) / IPA is deployed in a scenario with a star topology, and the central node stopped receiving replication from all the leave replica, but those leave replica do receive changes from the central node.
The central node's LDAP server errors log file had been showing various network errors, and eventually this:
[20/Jan/2014:12:36:47 -0800] NSMMReplicationPlugin - agmt="cn=meToleaf6.example.com" (leaf6:389): Incremental update failed and requires administrator action
[21/Jan/2014:03:27:56 -0800] NSMMReplicationPlugin - agmt="cn=meToleaf12.example.com" (leaf12:389): Missing data encountered
[21/Jan/2014:03:27:56 -0800] NSMMReplicationPlugin - agmt="cn=meToleaf12.example.com" (leaf12:389): Incremental update failed and requires administrator action
Environment
RHEL 6 with IdM/IPA 3
redhat-release-server-6Server-6.4.0.4.el6.x86_64
389-ds-base-1.2.11.15-22.el6_4.x86_64
ipa-server-3.0.0-26.el6_4.4.x86_64
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