client cannot reconnect after server crash

[ittech25]

client cannot reconnect after server crash

[xp4xbox]

in look into it.

[xp4xbox]

I think the real problem is the server crashing since even killing the process will still allow the client to reconnect. When does the server crash?

[ittech25]

Yes, Server crash when killing the process.
When server restart, client cannot reconnect

[xp4xbox]

try running both in a command window see what the output is.

I killed the server and restarted it and client still connected.

[ittech25]

1 . I killed server ==> restart server => client connected ok
2. I try killed server again ==> restart server => alway stuck in Listening on port

I test on windows 10 and ngrok

[xp4xbox]

I tried killing it multiple times, the client still connects. Maybe try changing line 442 in client.py to except: instead of except socket.error:.

[ittech25]

Thank you @xp4xbox
I change line 442 as you help
error as image below when i killed server and reopen
Server

Client

[ittech25]

Test 2nd :

[xp4xbox]

Right below line 79 do you want to add print(client_info) so I can see what data that list has when you get that error?

[ittech25]

error does not appear as picture above
But killed the server and restart, it's stuck
Connected

Restart Server , stuck on Listening on port 3000, client not reconnect

[ittech25]

Error appear

[xp4xbox]

Try changing line 154 in refresh_connections() from except socket.error: to just except:

[ittech25]

Error below

[ittech25]

maybe error appear when i use ngrok ?

[xp4xbox]

Whats ngrok

[ittech25]

Ngrok : expose local server to internet (https://ngrok.com/)
Because ISP in my country does not provide static ip

[xp4xbox]

Ah I think i know the problem do you want to add print(strUserInfo) to line 100 in client.py and show the output.

[tidely]

Error appear

I believe this error can be fixed with changing del arrAddresses[intCounter] to arrAddresses.remove(conn). This should prevent index out of range errors

[ittech25]

Waiting result,

[xp4xbox]

part of the problem is that since you are using ngroc hostname socket.gethostname() returns nothing. so il have to fix that.

did you try doing arrAddresses.remove(conn)?

[ittech25]

Yes, i tried

[tidely]

Ngrok port forwarding service, I don't think it interferes with socket.gethostname()

[ittech25]

[xp4xbox]

try this instead del arrAddresses[arrConnections.index(conn)] arrConnections.remove(conn) for thoses two lines.

[xp4xbox]

@Y4hL any reason why socket.gethostname returns blank then?

[tidely]

I think socket.gethostname() returns DESKTOP-XXXX

[xp4xbox]

oh wait yeah your right, platform.system() and platform.release() arent showing up

[tidely]

It think it would make it much easier if the list was sent in json format instead of splitting strings

[ittech25]

try this instead del arrAddresses[arrConnections.index(conn)] arrConnections.remove(conn) for thoses two lines.
Error does not appear
Restart Server , stuck on Listening on port 3000

[tidely]

@xp4xbox I can make the client send the client_info in json format, but it would require an extra import, is that fine?

[xp4xbox]

That's fine

…

On Fri, Jun 12, 2020, 10:08 PM Y4hL ***@***.***> wrote: @xp4xbox <https://github.com/xp4xbox> I can make the client send the client_info in json format, but it would require an extra import, is that fine? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#37 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AF6O6QSTWPHHQYIIE5VOIS3RWLNSJANCNFSM4NZ5QCCA> .

[tidely]

#38 @ittech25 try using ngrok with these changes

[ittech25]

Error accepting connections!

[ittech25]

error below :

[ittech25]

Hi @xp4xbox @Y4hL
I tried using serveo (same ngrok) - expose local server to internet
Working fine. No error appear.
Thank you for your support ^^