Hadoop java.io.IOException: Mkdirs failed to create /some/path

Question

When I try to run my Job I am getting the following exception:

Exception in thread \"main\" java.io.IOException: Mkdirs failed to create /some/path
    at or         


        

Answer 1

Just ran into this problem running mahout from CDH4 in standalone mode in my MacBook Air.

The issue is that a /tmp/hadoop-xxx/xxx/LICENSE file and a /tmp/hadoop-xxx/xxx/license directory are being created on a case-insensitive file system when unjarring the mahout jobs.

I was able to workaround this by deleting META-INF/LICENSE from the jar file like this:

zip -d mahout-examples-0.6-cdh4.0.0-job.jar META-INF/LICENSE

and then verified it with

jar tvf mahout-examples-0.6-cdh4.0.0-job.jar | grep -i license

Hope this helps!