[
https://issues.apache.org/jira/browse/MAHOUT-839?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13125108#comment-13125108
]
Grant Ingersoll commented on MAHOUT-839:
----------------------------------------
Also, for future reference, no need to name patches as v2, etc. JIRA will
always show the latest one when it has the same name, that makes it easier to
find which one to use.
> rowid job failing (when parsing options)
> ------------------------------------------
>
> Key: MAHOUT-839
> URL: https://issues.apache.org/jira/browse/MAHOUT-839
> Project: Mahout
> Issue Type: Bug
> Reporter: Dan Brickley
> Assignee: Grant Ingersoll
> Priority: Trivial
> Labels: options, rowid
> Attachments: MAHOUT-839-v2.patch, MAHOUT-839.patch
>
>
> Although MAHOUT-757 moved towards standard option naming, it uses different
> APIs for option parsing than other jobs.
> On my system, it died reliably with null pointer error. Reported in mail
> here, but not reconfirmed by anyone else yet:
> http://permalink.gmane.org/gmane.comp.apache.mahout.user/9659
> Example:
> TellyClub:bin danbri$ ./mahout rowid --help
> MAHOUT_LOCAL is set, so we don't add HADOOP_CONF_DIR to classpath.
> MAHOUT_LOCAL is set, running locally
> [skipping some hopefully unrelated SLF4J errors re same thing on classpath
> twice]
> Exception in thread "main" java.lang.NullPointerException
> at org.apache.hadoop.fs.Path.<init>(Path.java:61)
> at org.apache.hadoop.fs.Path.<init>(Path.java:50)
> at org.apache.mahout.utils.vectors.RowIdJob.run(RowIdJob.java:49)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
> at org.apache.mahout.utils.vectors.RowIdJob.main(RowIdJob.java:89)
> 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:68)
> at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
> at org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:188)
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
