[Hadoop-common-user] IOExceptions cause Map tasks failed!

Hi,

I got the following IOExceptions which cause Map tasks failed when I run
Nutch Fetcher2.

$ bin/nutch fetch2 segments/20090106154644

java.io.IOException: Task process exit with nonzero status of 134.
at org.apache.hadoop.mapred.*TaskRunner*.run(*TaskRunner*.java:424)

Can anyone tell me why?

any help will be appreciated!


Thanks,

Andrew Sha