On 01/12/2020 06:23, Michael Cronenworth via shifter-users wrote: > Hi, > > I have had an issue with Xpra dropping and reconnecting sessions while > using applications inside the web browser client. I have experienced > this for several months and logs do not show a reason. Currently I'm > using Xpra 4.0.5. Does this also occur if you connect a regular python client to the same session?
> I can leave a session open for hours without reconnect attempts if I > leave an application open and idle so I do not feel this is a network > connectivity issue. It's only randomly reconnecting after clicking > around applications, such as Firefox, inside a session. The randomness > frequency is anywhere from once per 5 minutes to a few times per minute. > It is not isolated to a single application. > > Server side logs show the client disconnected and then reconnected. No > warnings or other errors. Can you try to run your server with --debug=network and post the last few messages just before the client disconnection message? > Client side browser logs show: > websocket closed: undefined reason: null, reconnect: true, reconnect > attempt: 0 That's quite odd. The "websocket closed" event can only come from 3 places: * the server sending a "close" message (which would include a reason) * a protocol error in the HTML5 client (also includes a message) * the browser tears it down unceremoniously Only the last one would not include a "reason" message. Applying this patch will now include more details: http://xpra.org/trac/changeset/28048/xpra You can either apply it by hand or use the copy found here: http://xpra.org/html5/connect.html Other things worth trying: * use a tunnel to ensure that the websocket traffic isn't modified * use wireshark to inspect the last few packets before the connection drops (you should be able to see which end is closing first) > connection-list > ... tries to reconnect to server ... > (web browser shows session for a second) > connection-established > update encodings: (encodings listed...) > ping timeout - reconnecting > ... tries to reconnect to server ... > (this can cycle once, or a half-dozen times in a row, until finally....) > connection-established > update encodings: (encodings listed...) > server connection is OK > > The session is then "stable" until the next reconnection episode. > > Any ideas as to the cause? I'm afraid not. Please try the steps above, and if that does not help, file a ticket. Cheers, Antoine > > Thanks, > Michael _______________________________________________ shifter-users mailing list shifter-users@lists.devloop.org.uk https://lists.devloop.org.uk/mailman/listinfo/shifter-users
