An error running hadoop 2.2.0 mapreduce

hadoop-MR-error.sh

# hadoop jar /share/hadoop/mapreduce/hadoop-mapreduce-examples-2.2.0.jar grep /input /ouput 'dfs[a-z.]+'
14/02/27 21:15:11 INFO Configuration.deprecation: session.id is deprecated. Instead, use dfs.metrics.session-id
14/02/27 21:15:11 INFO jvm.JvmMetrics: Initializing JVM Metrics with processName=JobTracker, sessionId=
14/02/27 21:15:11 WARN mapreduce.JobSubmitter: No job jar file set.  User classes may not be found. See Job or Job#setJar(String).
14/02/27 21:15:11 INFO input.FileInputFormat: Total input paths to process : 23
14/02/27 21:15:11 INFO mapreduce.JobSubmitter: Cleaning up the staging area file:/tmp/hadoop-root/mapred/staging/root1084670987/.staging/job_local1084670987_0001
java.lang.NullPointerException
        at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.getBlockIndex(FileInputFormat.java:390)
        at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.getSplits(FileInputFormat.java:365)
        at org.apache.hadoop.mapreduce.JobSubmitter.writeNewSplits(JobSubmitter.java:491)
        at org.apache.hadoop.mapreduce.JobSubmitter.writeSplits(JobSubmitter.java:508)
        at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:392)
        at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1268)
        at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1265)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:415)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491)
        at org.apache.hadoop.mapreduce.Job.submit(Job.java:1265)
        at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1286)
        at org.apache.hadoop.examples.Grep.run(Grep.java:77)
        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
        at org.apache.hadoop.examples.Grep.main(Grep.java:101)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:72)
        at org.apache.hadoop.util.ProgramDriver.run(ProgramDriver.java:144)
        at org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:74)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:212)
root@1ec99b32928c:/tmp/hadoop-root/mapred/staging/root1499532000/.staging#