Not able to run in Kerberos safe environment.

[snchtgrvr]

Hi, I am trying to run the spyglass api in a kerberos environment, i used the following code :
// read the input file
val pipe = TextLine( args("input") )
// split each line of the input file using any whitespace "\s+" as the separator
.flatMap('line -> 'WORD) { line : String =>
line.toLowerCase.split("\s+")
}
// get count of each word in the input file
.groupBy('WORD) { _.size }
// convert to uppercase for use with HBase Phoenix
.rename('size -> 'SIZE)
// create a new pipe with byte values rather than string/number values
val pipe2 = new HBasePipeWrapper(pipe).toBytesWritable(new Fields("WORD"), new Fields("SIZE"))
// write to the TEST table with WORD as the rowkey, CF as the columnFamily and SIZE as the only value column
.write(new HBaseSource("TEST", "myserver.mydomain.com:2181", 'WORD, List("CF"), List(new Fields("SIZE"))) )
}

Changing the "myserver.mydomain.com:2181" with my specific quorum values. this specific code launches and shows 2 mappers and 60 reducers are required. the the mappers goes well but the reducers get stucked at 57 and then keeps failing without killing the task.