Really having a fun time evaluating Couchbase. The querying capabilities are impressive.
At this particular link, it lists that port 9999 is, “Internal GSI port used by the internal administrators.” and does not list a “Yes” in the table for Node-to-Node. I set up a three node cluster and saw messages in the web admin mentioning that the indexing service was not available. I also noticed these log writes in the indexer.log…
2015-12-10T00:24:37.478Z+00:00 [Error] KVSender::closeMutationStream INIT_STREAM Error Received projector.topicMissing from 10.1010.97:9999
2015-12-10T00:24:37.479Z+00:00 [Error] KVSender::closeMutationStream INIT_STREAM Error Received projector.topicMissing from 10.10.10.11:9999
2015-12-10T00:24:37.48Z+00:00 [Error] KVSender::closeMutationStream INIT_STREAM Error Received projector.topicMissing from 10.10.10.102:9999
Upon opening port 9999 those log writes along with the web admin warnings subsided. Just wanted to mention that because the details about port 9999 (http://developer.couchbase.com/documentation/server/4.0/install/install-ports.html) don’t make it appear to be a node-to-node requirement.
It was nice to run into a real problem to able to assess ease of troubleshooting of the server. But I thought I’d mention this in the event the docs needed an update.