Thanks Alan for the explanation: fair enough !
Le 05/01/10 19:32, Alan Gates a écrit :
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
