Massive amount of auth POST /_cbauth & [WARN] Finalizing a bucket with active connections

Couchbase Server
1

Hi there,

A bit of context first; I have a cluster of 3 nodes; 8x16G - running CB 5.1 community - running as Docker containers. 8 Buckets, a few N1QL indexes (~15) and a few views (prod only - no dev).

I’m seeing quite some activity despite barely any inbound traffic (~10 ops/sec - cluster wide).

But - in logs/query.log - thousands of line like the one below - up to 200 / sec …:

2019-08-30T05:07:11.604+00:00 [WARN] Finalizing a bucket with active connections. 
2019-08-30T05:07:11.604+00:00 [WARN] Finalizing a bucket with active connections. 
2019-08-30T05:07:11.604+00:00 [WARN] Finalizing a bucket with active connections. 
2019-08-30T05:07:11.604+00:00 [WARN] Finalizing a bucket with active connections. 
2019-08-30T05:07:11.604+00:00 [WARN] Finalizing a bucket with active connections.

Similarly - in http_access.log and http_internal_access.log - easily 10-25/sec:

127.0.0.1 - ui-token [30/Aug/2019:05:23:04 +0000] "POST /_cbauth HTTP/1.1" 200 41 - Go-http-client/1.1
127.0.0.1 - ui-token [30/Aug/2019:05:23:04 +0000] "POST /_cbauth HTTP/1.1" 200 41 - Go-http-client/1.1
127.0.0.1 - ui-token [30/Aug/2019:05:23:04 +0000] "POST /_cbauth HTTP/1.1" 200 41 - Go-http-client/1.1
127.0.0.1 - ui-token [30/Aug/2019:05:23:04 +0000] "POST /_cbauth HTTP/1.1" 200 41 - Go-http-client/1.1
127.0.0.1 - ui-token [30/Aug/2019:05:23:04 +0000] "POST /_cbauth HTTP/1.1" 200 41 - Go-http-client/1.1
127.0.0.1 - ui-token [30/Aug/2019:05:23:04 +0000] "POST /_cbauth HTTP/1.1" 200 41 - Go-http-client/1.1

I’m currently unable to figure out why such behaviour, and how to remedy to it…

Any idea?

Much appreciated.

Vincent

2

I think I have figured it out.

It was only affecting one of the 3 servers; the one I was connected on via the Admin Web UI… And I had 4 tabs opened simultaneously.

Closing the web pages just stopped the logs from flowing in… and the server is back into normal CPU usage.