The error message says Pig gets an empty error report from hadoop. Check JobtrackerUI to find details about this failure.
On Thu, Sep 29, 2011 at 1:42 AM, Marco Cadetg <[email protected]> wrote: > Hello there, > > I'm running pig 0.8 and hadoop-0.18.3. > > I'm trying to run some pig job which fails with: > 2011-09-29 08:25:31,473 [main] ERROR org.apache.pig.tools.grunt.Grunt - > ERROR 2056: Cannot create exception from empty string. > > I've noticed that this problem occurred since I've added another (data) node > to the hadoop cluster. > If I remove that node the problem disappears. I guess that this problem is > rather a hadoop issue than a pig issue. When running hadoop fsck / > it does say that HDFS is healthy... I've also made sure that the newly > created node doesn't contain any garbled data in the hadoop.tmp.dir. > > Any ideas what I can do apart from that? > > Thanks, > -Marco >
