Uploaded image for project: 'Bigtop'
  1. Bigtop
  2. BIGTOP-259

Most of the mahout tests can't be executed out-of-the box

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.2.0
    • Fix Version/s: 0.3.0
    • Component/s: general
    • Labels:
      None

      Description

      Here's what the problem looks like:
      Error: java.lang.ClassNotFoundException: org.apache.mahout.math.Vector

      First the good news: it is fixed upstream: MAHOUT-680. The root cause of the problem is the fact that /usr/lib/mahout/bin/mahout constructs HADOOP_CLASSPATH in such a way that it puts mahout-examples-0.5-job.jar after mahout-core-0.5-job.jar. That trips up job submission code into putting mahout-core-0.5-job.jar into distributed cache instead of mahout-examples-0.5-job.jar (which has the missing class definitions).

      A proposed workaround to sustain us for as long as MAHOUT-680 hasn't been put into any release yet is to manually initialize HADOOP_CLASSPATH with mahout-examples-0.5-job.jar at the level of /usr/bin/mahout. This is ugly but it works.

        Attachments

        1. BIGTOP-259.patch.txt
          0.6 kB
          Roman Shaposhnik

          Activity

            People

            • Assignee:
              rvs Roman Shaposhnik
              Reporter:
              rvs Roman Shaposhnik
            • Votes:
              0 Vote for this issue
              Watchers:
              0 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: