I have such error in logs: null_callback : error code 0x50 syncrepl_entry: rid=001 be_add logID=502,logID=402,logHost=mail.xxx.xxx.xx,logName=main,cn=test failed (80) do_syncrepl: rid=001 rc 80 retrying (2 retries left)

and then every 2-3 minutes: => mdb_idl_fetch_key: cursor failed: Invalid argument (22)

MDB is running on replication consumer. I shutted down the replication provider for reindexing. The consumer was not fully synced at that time. Than I changed olcDbMaxSize on the replication consumer. Than I started the provider again. Seems the error happened first time right after olcDbMaxSize was increased from 5G to 8G. I've never changed it before. Sep 30 16:07:01 lintest slapd[518]: conn=1089 op=1 MOD dn="olcDatabase={1}mdb,cn=config" Sep 30 16:07:01 lintest slapd[518]: conn=1089 op=1 MOD attr=olcDbMaxSize Sep 30 16:07:03 lintest slapd[518]: conn=1089 op=1 RESULT tag=103 err=0 text= Sep 30 16:07:03 lintest slapd[518]: conn=1089 op=2 UNBIND Sep 30 16:07:03 lintest slapd[518]: conn=1089 fd=12 closed Sep 30 16:07:03 lintest slapd[518]: => mdb_idl_fetch_key: cursor failed: Invalid argument (22)

slapd version git a1c2dc6 db size 3.7Gb

What this error is about? Is it serious? Should I recreate the DB on the consumer? Seems replication is stalled.