We are running a self-hosted mongodb deployment as a three member replica set (PSA), recently upgraded from mongodb 6.0.3. We are running in a containerized environment. Every so often, I see logs like the following:
{"t":{"$date":"2025-02-10T17:08:53.642+00:00"},"s":"I", "c":"ACCESS", "id":5286307, "ctx":"conn440","msg":"Failed to authenticate","attr":{"client":"172.22.0.1:39686","isSpeculative":false,"isClusterMember":false,"mechanism":"","user":"","db":"","error":"AuthenticationAbandoned: Authentication session abandoned, client has likely disconnected","result":337,"metrics":{"conversation_duration":{"micros":358000215,"summary":{}}},"extraInfo":{}}}
I see no evidence of failure to replicate or other problems. The message may be logged by any of the 3 members of the replica set. The log message does not show up if we deploy our application without a replica set. What does this log mean? Is there a way to address a problem it relates to, or is it “expected”?