I was just going to send a message here about this, but you beat me to
it!
I just today starting using Fabric again and bumped into this very
issue. This thread helped a lot in pointing me to the right
direction. I submitted a patch that resolves this problem in 1.7.5
here: https://bugs.launchpad.net/paramiko/+bug/413850
Cheers!
Pat
Jeff Forcier wrote:
Thanks for confirming this, both of you. I also note that Pat
McNerthney just (as in <10 minutes ago) actually investigated this and
put a nice, detailed comment on Robey's Paramiko Github page outlining
what's going on:
http://github.com/robey/paramiko/commit/f573017a1d56c0ef9fdb08598bf4a43f40c01952
It's unfortunate that 1.7.4 is no longer available on PyPI either; if
Robey isn't able to push out a 1.7.6 or 1.7.5.1 soon I can't think of
much else to do for new users other than to direct them to the
Paramiko site to download a .tgz of 1.7.4.
In the meantime, hopefully it's obvious to anyone reading this that
they should hold off on upgrading to Paramiko 1.7.5 until this is
resolved :)
-Jeff
On Fri, Aug 14, 2009 at 7:24 PM, Ted Carroll<address@hidden> wrote:
I had a chance to confirm this. paramiko 1.7.5 is broken and paramiko 1.7.4
works.
Thanks,
Ted C.
On Aug 14, 2009, at 9:06 AM, Wes Winham wrote:
We had this same issue and we narrowed it down to paramiko 1.7.5
We were getting exceptions like:
Traceback (most recent call last):
File "/home/christian/.virtualenvs/pstat_dev/src/fabric/fabric/main.py",
line 454, in main
commands[name](*args, **kwargs)
File
"/home/christian/work_devel/policystat/pstat/pstat_deploy/configure.py",
line 201, in deploy
_push_source()
File
"/home/christian/work_devel/policystat/pstat/pstat_deploy/utils.py", line
117, in _push_source
run('ln -s /var/www/%(pstat_url)s_%(timestamp)s /var/www/%(pstat_url)s'
% env)
File
"/home/christian/.virtualenvs/pstat_dev/src/fabric/fabric/network.py", line
371, in host_prompting_wrapper
return func(*args, **kwargs)
File
"/home/christian/.virtualenvs/pstat_dev/src/fabric/fabric/operations.py",
line 413, in run
channel.exec_command(real_command)
File
"/home/christian/.virtualenvs/pstat_dev/lib/python2.5/site-packages/paramiko/channel.py",
line 212, in exec_command
self._wait_for_event()
File
"/home/christian/.virtualenvs/pstat_dev/lib/python2.5/site-packages/paramiko/channel.py",
line 1077, in _wait_for_event
raise e
paramiko.SSHException: Channel closed.
They would occur absolutely randomly (usually between the 5th and 25th
run() or sudo() call for some reason), but I always got that exception
before the script finished (a successful run has about 60 sudo/run
calls). This only started happening after I upgraded from paramiko
1.7.4 installed via the python-paramiko package on Ubuntu 9.04 to
paramiko 1.7.5 installed via pip in my virtualenv. I had also upgraded
from fabric 0.9a3 to 0.9b1 at the same time, but I was able to narrow
it down to the paramiko change by going back to 0.9a with the problem
continuing.
The annoying part is that 1.7.4 isn't hosted anywhere on pypi, so
we're having to go back to paramiko 1.7.2. Good news is that
everything is working again at least.
Hope this helps.
-Wes
Offhand that doesn't look like a config issue, especially if it's
intermittent. Are you saying that sometimes that exact command below
will work, or does it always bail out? What other commands have you
successfully run with run() or sudo(), and what other commands have
died -- or is it truly random?
What version of Fabric are you using, a git clone or 0.9b1 or what? :)
What version of Paramiko do you have installed? IIRC some older
versions of Paramiko can cause problems, you'll want 1.7.4 or newer.
(In fact, 1.7.5 came out recently, and looks like it may fix those
Python 2.6 warnings, hooray!)
Finally, it looks like you're using Python 2.6 on...OS X 10.3 Panther?
Is that accurate or is your egg path leading me astray? Don't know of
any specific issues on 10.3, just want to make sure I know what your
platform is for the record.
Sorry for the interrogation but that's tech support for you :)
Best,
Jeff
On Sat, Aug 8, 2009 at 7:27 PM, Ted Carroll<address@hidden>
wrote:
I'm trying out fabric for the first time so this is probably a silly
config
problem on my part, but I'm running ubuntu 9.04 in a vmware vm and
having a
lot of problems getting SSHExceptions. Here's a fabfile that reproduces
the
problem:
from fabric.api import *
def production():
env.hosts = ['192.168.1.228']
env.user = 'deployment'
env.password = 'password'
def test_sudo():
require('hosts', provided_by=[production])
put('apache-website-config', 'apache-website-config')
sudo('rm -f apache-website-config')
sudo('rm -f bad_file_name2')
The output is:
/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/Crypto/Hash/SHA.py:6:
DeprecationWarning: the sha module is deprecated; use the hashlib module
instead
from sha import *
/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/Crypto/Hash/MD5.py:6:
DeprecationWarning: the md5 module is deprecated; use hashlib instead
from md5 import *
[192.168.1.228] put: apache-website-config -> apache-website-config
[192.168.1.228] sudo: rm -f apache-website-config
Traceback (most recent call last):
File "build/bdist.macosx-10.3-i386/egg/fabric/main.py", line 481, in
main
File "/Users/tedc/project_46062/deployment/fabfile.py", line 11, in
test_sudo
sudo('rm -f apache-website-config')
File "build/bdist.macosx-10.3-i386/egg/fabric/network.py", line 369, in
host_prompting_wrapper
File "build/bdist.macosx-10.3-i386/egg/fabric/operations.py", line 517,
in
sudo
File "build/bdist.macosx-10.3-i386/egg/paramiko/channel.py", line 212,
in
exec_command
File "build/bdist.macosx-10.3-i386/egg/paramiko/channel.py", line 1077,
in
_wait_for_event
paramiko.SSHException: Channel closed.
Disconnecting from 192.168.1.228... done.
It seams to be intermittent -- occasionally it will work but mostly it
fails.
Any ideas?
Thanks,
Ted C
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***************************************
--
Wes Winham
m. 405.206.4913
w. 317.844.6885 x139
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