Rhche on production spammed by Web socket session error

[Katka92]

Issue problem:
There is a huge amount of messages saying that Web socket session error is present and then Closing unidentified session which is related with that (at least this is my opinion).

Example from rhche log:

{"@timestamp":"2019-03-13T16:17:22.525+00:00","@version":1,"message":"Closing unidentified session","logger_name":"org.eclipse.che.api.core.websocket.impl.BasicWebSocketEndpoint","thread_name":"http-nio-8080-exec-3","level":"WARN","level_value":30000}
{"@timestamp":"2019-03-13T16:17:22.534+00:00","@version":1,"message":"Web socket session error","logger_name":"org.eclipse.che.api.core.websocket.impl.BasicWebSocketEndpoint","thread_name":"http-nio-8080-exec-13","level":"WARN","level_value":30000}

There is one more message which is probably related but occurs less often:

{"@timestamp":"2019-03-13T16:17:19.564+00:00","@version":1,"message":"Processing messing within unidentified session","logger_name":"org.eclipse.che.api.core.websocket.impl.BasicWebSocketEndpoint","thread_name":"http-nio-8080-exec-10","level":"WARN","level_value":30000}

Runtime:

runtime used:

• minishift (include output of minishift version)
• OpenShift.io
• Openshift Container Platform (include output of oc version)

[amisevsk]

I agree that these logs are not useful.

FWIW I can reproduce Closing unidentified session semi-reliably locally on minishift by

1. Open dashboard to running instance of Che
2. Start new deployment of Che while leaving the dashboard open.
3. After Che starts, a lot of the time Closing unidentified session is logged ~30 times

[Katka92]

When I reported it, it was really logged in very high speed. Today it seems not be logged that much, anyway it still appears.

[amisevsk]

I believe a lot of the Closing unidentified session occur around when the server is restarted.

[garagatyi]

Upstream issue eclipse-che/che#11571 is quite old. Nobody has prioritized it yet

[ibuziuk]

Still happens on Che 7, Closing in favour of upstream - eclipse-che/che#11571