Re: [Fab-user] Dropped output messages?

[Jeff Forcier]

Hi Evan,

I don't see anything obviously wrong with what you're doing, and it's
entirely possible there are some bugs floating around in the output
thread mechanisms somewhere. Do you notice any patterns? I.e. is it
always the same system that has the issue or does it vary?

I haven't run any serious multi-system jobs with this newer Fabric
version myself, so I'll try to run some tests along these lines to see
if I can replicate the problem. Will let you know the results when I
do this.

In the meantime, though, as I said -- if you could try switching your
host list around, or simply running this a number of times in a row
and see if any obvious patterns appear, that might help. Feel free to
throw debug statements into fabric.network.output_thread() to see what
might be going on, too, as that's inevitably how I'll be debugging on
my end if I need to :)

Best,
Jeff

On Mon, May 25, 2009 at 10:23 AM, Evan Jones <address@hidden> wrote:
> I'm just starting to test Fabric using the latest version in GIT. I'm
> running into an issue where some of the output from my tasks does not appear
> on the command line. Am I screwing something up? My test job just runs the
> "uptime" command on a bunch of hosts. The problem seems more likely to occur
> if I have more hosts in the list. With 3 it seems to never happen. With 4 it
> happens on occasion. With 6 it seems to happen every time I try it.
>
> Thanks for your help,
>
> Evan Jones
>
>
>
> My fabfile.py:
>
>
> from fabric.api import *
>
> env.hosts = [
>        "farm6.csail.mit.edu",
>        "farm7.csail.mit.edu",
>        "farm8.csail.mit.edu",
>        "farm10.csail.mit.edu",
>        "farm11.csail.mit.edu",
>        "farm12.csail.mit.edu",
> ]
>
> def  deploy():
>    """Deploy the job!"""
>    run("uptime")
>
>
>
> Sample output with the problem. Notice that the uptime output from farm10 is
> missing:
>
> [farm6.csail.mit.edu] run: uptime
> [farm6.csail.mit.edu] out:  10:22:56 up 131 days, 21:57,  0 users,  load
> average: 0.00, 0.00, 0.00
> [farm7.csail.mit.edu] run: uptime
> [farm7.csail.mit.edu] out:  10:22:56 up 131 days, 21:56,  0 users,  load
> average: 0.06, 0.06, 0.01
> [farm8.csail.mit.edu] run: uptime
> [farm8.csail.mit.edu] out:  10:22:57 up 131 days, 16 min,  1 user,  load
> average: 0.00, 0.00, 0.00
> [farm10.csail.mit.edu] run: uptime
> [farm11.csail.mit.edu] run: uptime
> [farm11.csail.mit.edu] out:  10:22:58 up 131 days, 21:56,  0 users, load
> average: 0.00, 0.00, 0.00
>
> Done.
> Disconnecting from farm7.csail.mit.edu... done.
> Disconnecting from farm6.csail.mit.edu... done.
> Disconnecting from farm10.csail.mit.edu... done.
> Disconnecting from farm8.csail.mit.edu... done.
> Disconnecting from farm11.csail.mit.edu... done.
>
>
> --
> Evan Jones
> http://evanjones.ca/
>
>
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