Hey,
If you’re running Couchbase 1.8.1 then I’d suggest upgrading to a more recent version of Couchbase Server. 3.0.3 is the latest Enterprise version and Community builds are available for 3.0.1.
I’m afraid we no longer support the 1.8.1 series but perhaps someone else has some experience that could help.
Do you mind me asking if there’s something preventing you from upgrading?
Thanks,
Matthew.