On Apr 16, 2009, at 10:27 AM, Stephen Green wrote:
If the Hadoop on EMR is really 0.18.3, then the null pointer here is
the store in the NativeS3FileSystem.
Perhaps it's not really 0.18.3. I decided to finally try a local run
with s3n URIs for the input and output and got a very similar error:
java.lang.NullPointerException
at
org
.apache
.hadoop.fs.s3native.NativeS3FileSystem.delete(NativeS3FileSystem.java:
303)
at
org
.apache.mahout.clustering.syntheticcontrol.kmeans.Job.runJob(Job.java:
83)
at
org.apache.mahout.clustering.syntheticcontrol.kmeans.Job.main(Job.java:
45)
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:155)
at org.apache.hadoop.mapred.JobShell.run(JobShell.java:54)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
at org.apache.hadoop.mapred.JobShell.main(JobShell.java:68)
But at a different spot.
Steve
--
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