Hello,
We are currently using Couchbase Server 4.0 Community addition and Elastic Search version 1.5.2 with ES connector plugin version 2.1.1.
But some how it is not working properly and we also checked in this URL (http://developer.couchbase.com/documentation/server/4.0/connectors/elasticsearch-2.1/release-notes.html#story-h2-3) and it says that ES plugin 2.1.1 is not supported in Couchbase Server 4.0.
Is this So ?