In our rails app, requests to our elasticsearch cluster have historically accounted for a high percentage of our outgoing HTTP traffic. Until recently, requests to it would appear near the top of the list at “External Services.”
Now, it’s not found there at all. I can kind of find my way to that “external service” item by going to “Transactions”, selecting a slow transaction, seeing the request to Elasticsearch at the top of that (it usually accounts for a high percentage of those transactions), and clicking that link. At that point I’m sent to “External Services”, and I’m looking at graphs of response time and throughput for requests to the Elasticsearch cluster. I can see at the top of those charts the throughput (CPM), which should place it easily at #1 on the list—but it doesn’t appear in the list at all.