Re: [Fab-user] Feature request - don't use cache

[Shoham Peller]

That's perfect!

Thanks a bunch you guys :)

On 12/12/2014 03:36 PM, Ronan Amicel wrote:

Hi Shoham,

In this situation, I typically manually clear the cache :

from fabric.state import connections

def clear_fabric_cache():

    if env.host_string in connections:

        connections[env.host_string].close()

        del connections[env.host_string]

Hope this helps,

Ronan

On Wed, Dec 10, 2014 at 9:14 PM, Shoham Peller <address@hidden> wrote:

Hello everyone,

Thank you for building and maintaining such useful and well-done code package.

I'm using fabric to connect to my virtual machines.
But every time I'm reverting a machine, fabric fails because it caches it's connections (see traceback at the bottom)

If I'm to explain by the code, in fabric/network.py, line 158, fabric checks if a connection to the requested address was already made, use that same session.
But if my VM was reverted, the session is not synced and I need fabric to re-connect.

So is there a way to force fabric to ignore or empty the cache, or maybe to try again if the connection was unsuccessful?

Thank you all again,
Shoham

______________________________________________________________________________________________________________________________________________________________

Traceback (most recent call last):
  File "/home/shoham/main.py", line 80, in <module>
    main()
  File "/home/shoham/main.py", line 68, in main
    execute(task)
  File "/usr/local/lib/python2.7/dist-packages/fabric/tasks.py", line 424, in execute
    results['<local-only>'] = task.run(*args, **new_kwargs)
  File "/usr/local/lib/python2.7/dist-packages/fabric/tasks.py", line 174, in run
    return self.wrapped(*args, **kwargs)
  File "/home/shoham/test_mockup.py", line 11, in test_with_file_upload
    put("/home/shoham/Vagrantfile", "/tmp")
  File "/usr/local/lib/python2.7/dist-packages/fabric/network.py", line 647, in host_prompting_wrapper
    return func(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/fabric/operations.py", line 346, in put
    ftp = SFTP(env.host_string)
  File "/usr/local/lib/python2.7/dist-packages/fabric/sftp.py", line 30, in __init__
    self.ftp = connections[host_string].open_sftp()
  File "/usr/local/lib/python2.7/dist-packages/paramiko/client.py", line 379, in open_sftp
    return self._transport.open_sftp_client()
  File "/usr/local/lib/python2.7/dist-packages/paramiko/transport.py", line 811, in open_sftp_client
    return SFTPClient.from_transport(self)
  File "/usr/local/lib/python2.7/dist-packages/paramiko/sftp_client.py", line 127, in from_transport
    max_packet_size=max_packet_size)
  File "/usr/local/lib/python2.7/dist-packages/paramiko/transport.py", line 615, in open_session
    max_packet_size=max_packet_size)
  File "/usr/local/lib/python2.7/dist-packages/paramiko/transport.py", line 696, in open_channel
    raise SSHException('SSH session not active')
paramiko.ssh_exception.SSHException: SSH session not active

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