2013-08-13 13:13:40,314 [master.CoordinateRecoveryTask] ERROR: Unknown error cleaning up old jobs
java.lang.NullPointerException
        at org.apache.hadoop.mapred.JobClient.getAllJobs(JobClient.java:858)
        at org.apache.accumulo.server.master.CoordinateRecoveryTask.cleanupOldJobs(CoordinateRecoveryTask.java:337)
        at org.apache.accumulo.server.master.CoordinateRecoveryTask.run(CoordinateRecoveryTask.java:376)
        at org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)
        at java.lang.Thread.run(Thread.java:724)