On Fri, Aug 15, 2008 at 03:11:34PM -0700, Sid Stuart wrote:
> 
>    Has anyone else seen this error when running gmond in debug mode (gmond -d
>    9)?
> 
>    loaded module: python_module
>    udp_recv_channel mcast_join=239.2.11.82 mcast_if=NULL port=8649
>    bind=239.2.11.82
>    Exception in thread Thread-1:
>    Traceback (most recent call last):
>      File "/usr/lib64/python2.4/threading.py", line 442, in __bootstrap
>        self.run()
>      File "/usr/lib64/ganglia/python_modules/tcpconn.py", line 252, in run
>        poll_events = fd_poll.poll()
>    error: (4, 'Interrupted system call')
> 
>    tcp_accept_channel bind=NULL port=8649
>    udp_send_channel mcast_join=239.2.11.82 mcast_if=NULL host=NULL port=8649

yes, it was reported in BUG196 :

  http://bugzilla.ganglia.info/cgi-bin/bugzilla/show_bug.cgi?id=196

>    I know tcpconn.py is has an issue with gmond -m, but this is with gmond in
>    standard mode.

from the report, it might seem that at least in some versions of 64bit python
as packaged in fedora it is also breaking in "standard mode"; not sure what is
triggering the "interrupted system call" error though which apparently was
never seen before when the problem was assumed to be only relevant for "gmond
-m" as documented in the original release notes (fixed now).

>    I am looking at it because all the tcpconn graphs on my
>    system display lines that zeroed (no values.)

that is also implicitly explained in the release notes where it says that
if there is an unhandled exception the metric will just silently stop
reporting (no values).

>    Note I am running the Fedora Ganglia RPM's and they have been buggy in the
>    past. :)

this is not a bug in fedora's ganglia package as explained before.  other
distributions are most likely also affected, but we haven't just heard yet
from them (gentoo included the patch for the proposed fix in its original
package so it was probably not affected)

Carlo

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