In MR mode, the output of your UDFs will turn up in the logs of the
map and reduce tasks, not in the pig log. There is currently no
channel for pig to send log messages back from the cluster to your
machine to put the messages in the pig log.
Alan.
On Jan 5, 2010, at 7:02 AM, Vincent Barat wrote:
I've tested this, it works in local mode but it doesn't works when
your UDF code is executed in a separate process (in cluster mode).
Le 05/01/10 15:49, Jeff Zhang a écrit :
You can use log4j to print the exception message and you can see
the message
on the job tracker web ui.
On Tue, Jan 5, 2010 at 5:16 AM, Vincent Barat<[email protected]
>wrote:
Hello,
Is there a (standard) way to output traces from within a custom
PIG UDF
function (in order to see these traces inside the set of regular
traces ?)
Thanks
