Incidence Graph Pig Code Causes Memory Issues

[bigweale]

When running InsertIncidenceGraph, the following error occurs:

java.lang.Exception: java.lang.OutOfMemoryError: Requested array size exceeds VM limit
    at org.apache.hadoop.mapred.LocalJobRunner$Job.runTasks(LocalJobRunner.java:462)
    at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:522)
Caused by: java.lang.OutOfMemoryError: Requested array size exceeds VM limit
    at org.apache.commons.lang.StringUtils.rightPad(StringUtils.java:4801)
    at org.apache.commons.lang.StringUtils.rightPad(StringUtils.java:4751)
    at edu.mit.ll.graphulo.util.TripleFileWriter.writeTripleFile_Incidence(TripleFileWriter.java:180)
    at edu.mit.ll.graphulo.pig.backend.InsertIncidenceGraph.exec(InsertIncidenceGraph.java:90)
    at edu.mit.ll.graphulo.pig.backend.InsertIncidenceGraph.exec(InsertIncidenceGraph.java:25)

Need to investigate Pig's memory functions...