[collectd] Strange behavior of UnixSock plugin

[Jarle Bjørgeengen]

On Fri, 2008-12-12 at 15:01 +0100, Jarle Bjørgeengen wrote:
> Hi experts,
> 
> after upgrading collectd to 4.4.4 (from EPEL repository) my perl script
> that sends data to the Unixsock plugin stopped working. 
> 
> I can't get it  to output any debug information to logfile. It just
> hangs forever on the first putval method of the open socket (I'm using
> Unixsock perl module) 
> 

This was caused by the (custom) type missing from types.db. The reason
it was missing was of course because the yum/rpm upgrade process
overwrote types.db. Is there a types.db.local mechanism, to avoid this
in the future. I guess just changing the path to somewhere else  in
collectd.conf also would do the trick, but then new upstream types would
have to be added manually .. 

> It stops when doing this. 
> 
> ---------------------------------
>  $sock->putval (%identifier, time=> $time , \
> values => [@vdisk_rates, at vdisk_lats])
> ---------------------------------
> 
> and does not return, or output anything to the logfile. 
> 

Is this intended behavior , or would it be sensible to return an error
if trying to PUT data with a non existant type ? It would at least help
detecting the problem faster :-) 

BR 
Jarle Bjørgeengen