No, there is no logging.
Here is what you can do, though:
First of all, check that you've set the address and port of the server properly:
pinba.server=<host:port> or pinba.server=<host> (port is 30002 by default),
this should be reflected in your phpinfo()
After that make sure that you've enabled it: pinba.enabled=1, this should also be in phpinfo().
If all of the above is right, then the problem is certainly on the server: does it accept UPD packages on Pinba port? Firewall can be blocking them, for example.
Here's how to check if the server is listening on the port:
# netstat -ln | grep 30002 (change this to your port number)
Firewall might be a little more trickier, run this to see what's the current rules:
# iptables -L INPUT
Btw, we have a Russian-speaking mailing list here:
http://groups.google.com/group/pinba-engine-ru
--
Wbr,
Antony Dovgal
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http://pinba.org - realtime profiling for PHP