https://bugs.openldap.org/show_bug.cgi?id=9641

Issue ID: 9641 Summary: accesslog when logging failed operations interferes with deltasync Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: replication Severity: normal Priority: --- Component: slapd Assignee: bugs@openldap.org Reporter: ondra@mistotebe.net Target Milestone: ---

Take delta-MPR setup and accesslog configured with logsuccess off. We encounter a conflicting write (one that fails to apply in the DB) and fall back to plain syncrepl. Since we are configured to log that write, syncprov sees it (it is a failure, so doesn't match filter, which should contain reqResult=0) and sends a LDAP_SYNC_NEW_COOKIE with that CSN to our delta-consumers. While we apply this write locally in the fallback session, the consumers will skip what they see as a duplicate and lose the change.

My understanding is that for failed operations, we should ignore the CSN we received with the operation and instead set up a new one (with our own sid).