FAQ
By the way, my IPTABLES are turned off:

[root@CM-CDH4 hadoop-mapreduce]# iptables -L -n
Chain INPUT (policy ACCEPT)
target prot opt source destination

Chain FORWARD (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy ACCEPT)
target prot opt source destination



On Saturday, August 18, 2012 7:59:31 PM UTC-4, Jon Ramos wrote:

Hi, I'm trying to run my first simple MapReduce word count example on a
one-node cluster running Cloudera Manager 4 + CDH4. I'm using the
examples.jar. I seem to be getting a permission denied error. Any tips on
how I can troubleshoot this?

Here is what my /etc/hosts looks like (x added to end of IP for anonymity):

[root@CM-CDH4 hadoop-mapreduce]# cat /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4
localhost4.localdomain4
::1 localhost localhost.localdomain localhost6
localhost6.localdomain6
50.56.207.x CM-CDH4
10.179.2.x CM-CDH4



[root@CM-CDH4 hadoop-mapreduce]# hadoop jar
/usr/lib/hadoop-mapreduce/hadoop-mapreduce-examples.jar wordcount
/user/jramos/x_input /user/jramos/x_output
12/08/18 23:53:24 INFO mapreduce.Cluster: Failed to use
org.apache.hadoop.mapred.LocalClientProtocolProvider due to error: Invalid
"mapreduce.jobtracker.address" configuration value for LocalJobRunner :
"CM-CDH4:8021"
12/08/18 23:53:24 ERROR security.UserGroupInformation:
PriviledgedActionException as:root (auth:SIMPLE) cause:java.io.IOException:
Cannot initialize Cluster. Please check your configuration for
mapreduce.framework.name and the correspond server addresses.
java.io.IOException: Cannot initialize Cluster. Please check your
configuration for mapreduce.framework.name and the correspond server
addresses.
at org.apache.hadoop.mapreduce.Cluster.initialize(Cluster.java:121)
at org.apache.hadoop.mapreduce.Cluster.<init>(Cluster.java:83)
at org.apache.hadoop.mapreduce.Cluster.<init>(Cluster.java:76)
at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1196)
at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1192)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1232)
at org.apache.hadoop.mapreduce.Job.connect(Job.java:1191)
at org.apache.hadoop.mapreduce.Job.submit(Job.java:1220)
at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1244)
at org.apache.hadoop.examples.WordCount.main(WordCount.java:84)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:72)
at
org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:144)
at
org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:68)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.util.RunJar.main(RunJar.java:208)

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postedAug 18, '12 at 11:59p
activeAug 27, '12 at 7:02p
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Jon Ramos: 3 posts Harsh J: 1 post

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