[Twisted-Python] KeyError in SSHConnection.ssh_CHANNEL_OPEN_CONFIRMATION

[Stephen McRoberts]

Do I just post it to the list?
I need to write up a little as there needs to be configuration dicts for the logins to remotes.
I also need to put copyright data in the code. Some of it is mine and some came under apache license (really never intended any other eyes to see it).

> On Jul 5, 2017, at 5:00 PM, Stephen McRoberts <steveo at mcroberts.org> wrote:
> 
> I'm looking for suggestions why the channel key would be missing after it was just opened.
> I use persistent connections with a timeout but the timer is reset every call so it stays open.
> 
> Here's some of my logs:
> 
> 2017-07-05 15:26:45-0500 [-] opening channel 4 with 65536 32768
> 2017-07-05 15:36:45-0500  [SSHService 'ssh-connection' on ClientTransport,client] Unhandled Error
> --- (snipped traceback for clarity) ---
> File "/usr/local/lib/python2.7/dist-packages/twisted/conch/ssh/connection.py", line 180, in ssh_CHANNEL_OPEN_CONFIRMATION
>   channel = self.channels[localChannel]
>   exceptions.KeyError: 4
> 
> The same connection instance will work later on the next channel so it seems the connection is fine.
> 
> Any suggestions on what would cause this behavior?
> 
> Is this behavior typical?
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