[389-users] Index corruption message in multimaster replication

I have two 389 servers configured for multimaster replication. I noticed these possibly related messages in the errors logs: server1: [12/Jul/2017:07:50:44 -0700] - database index is corrupt; key *zon has a data item with the wrong size (5) server2: [12/Jul/2017:07:55:48 -0700] - idl_new.c BAD 59, err=-30999 DB_BUFFER_SMALL: User memory too small for return value [12/Jul/2017:07:55:48 -0700] - database index operation failed BAD 1050, err=-30999 DB_BUFFER_SMALL: User memory too small for How can I determine what index this is referring to and how do I repair it? Version info: 389-Directory/1.2.11.15 B2015.345.187 (389-ds-base-1.2.11.15-69.el6_7.x86_64 is the RPM) on RHEL 6.9