Re: PoCo::Client::Ping intermittently fails to emit pings

If the OS fails to execute a ping, does there exist a mechanism for the OS to 
tell POE about that?  And for me to 'notice' such an incident?

I was hoping that checking the return value on a 'post' would do that ... but 
thus far, no dice (i.e. the box on which my script is running intermittently 
fails to emit pings, but by script doesn't log anything.)

[...]
     # "Pinger, do a ping and return the results as a pong event.  The
     # address to ping is $addr."
     $result = $kernel->post(  'pinger',
                               'ping',
                               'pong',
                               $addr,
                               $timeout,
                             );
     log_error("Problem pinging $addr: $!") unless $result;
[...]

 From 
http://search.cpan.org/~rcaputo/POE-1.004/lib/POE/Kernel.pm#post_DESTINATION,_EVENT_NAME_[,_PARAMETER_LIST]

"post() returns a Boolean value indicating whether the message was successfully 
enqueued. If post() returns false, $! is set to explain the failure:"

--sk


Stuart Kendrick wrote:
> my favorite pinging application (in-house app, uses 
> POE::Component::Client::Ping) intermittently reports a rash of missed 
> replies. happens roughly the same time each night; the condition lasts 
> for several minutes