In Mapreduce framework, everything that uses System.out or System.err are redirected automatically to syslog. You shouldn't need to do anything special.
regards, Eric On Sat, Dec 10, 2011 at 7:07 PM, AD <[email protected]> wrote: > I have a custom processor in extraction/demux/processor/mapper do I need to > print something custom to stderr from there ? > > > On Sat, Dec 10, 2011 at 4:32 PM, Eric Yang <[email protected]> wrote: >> >> Hi AD, >> >> The stack trace is output to stdout of the mapreduce job. Hence, >> check the syslog file for the mapreduce job to find the actual cause >> of the problem. Hope this helps. >> >> regards, >> Eric >> >> On Sat, Dec 10, 2011 at 1:23 PM, AD <[email protected]> wrote: >> > i am seeing the following error : >> > >> > 2011-12-10 16:21:43,886 WARN btpool0-1 ChunkSaver - Unable to save a >> > chunk: >> > tags: testcluster - source:lilmac.home >> > >> > Is there a way to turn on more debugging to find out why? > >
