Terminal Stops Responding After Extended Period of Inactivity

[JamesDrummond]

When I have a terminal open in a workspace for an extend period of inactivity it will stop responding to input. I can create a new terminal that will work. I am using the hackathon version. I extended my workspace timeout so I am not sure if there is the same problem for codenvy.io as the workspace will time before I can test.

Codenvy version: Hackathon. I am not sure if it effects any other onprem versions with extended workspace time configured.
OS and version: Debian - Linode server 4 core 16 gb ram.

Additional information:

Problem only started happening recently, didn't happen in an older version of Codenvy: Not sure.
Problem can be reliably reproduced: Yes. Wait for about an hour with no activity.

[garagatyi]

Can you describe environment where you run this instance? Is it on some remote instance? Is there a proxy between you and terminal?

[JamesDrummond]

@garagatyi No proxy. I am running a the hackathon version with all server resources and no external nodes on Debian Linode server. I just had it happen again. This time I tried getting out of then into the workspace and I get a workspace not found error message. However the workspace is still accessible. Might be a new issue entirely. The screen capture below doesn't show the terminal responding(forgot to record) but does show the new error message and IDE not functioning correctly.

[garagatyi]

I believe it is completely separated issue. Please create an issue for that bug.

From your IP I suppose that it is remote to your browser, e.g. it is not on your local PC/laptop. So you can't know if there is a proxy (even hidden from you, without any configuration on your side) between you and container.

I believe we should explore lack of response from terminal from websocket connection side - our current implementation doesn't send ping packets into websocket connection.

[JamesDrummond]

Opened a new issue to track this as the terminal not working is a smaller symptom of a larger problem. #1082

@garagatyi How can I trace the client/server connection to see if there is a proxy between?

[garagatyi]

I do believe that these 2 problems are unrelated to each other.

How can I trace the client/server connection to see if there is a proxy between?
I don't think you can do that. Probably we should just test it in controlled environment. Maybe we will get more information if someone else submit the same issue.