MRUnit is a Java library that helps developers unit test Apache Hadoop
MapReduce jobs. Unit testing is a technique for improving project quality
and reducing overall costs by writing a small amount of code that can
automatically verify the software you write performs as intended. This is
considered a best practice in software development since it helps identify
defects early, before they're deployed to a production system.


  • The last release of Apache MRUnit was version 0.9.0-incubating, released on
    May 12, 2012 while in Incubation.
  • MRUnit is currently working on a 1.0.0 release. All blockers are closed and the RM is working on building RC.


  • Development activity has slowed while the project discussed how to support both Hadoop1/Hadoop2:
  • Development activity continues as can be seen from the following report:
  • 10 JIRAs were resolved since the last report.
  • Mail traffic is largely on the DEV list. Messages since Dec 1st: dev 62, user 5


  • The composition of the committers and PMC members has not changed since
    the last report.
  • Currently there are:
  • Total of 34 subscribers to the developer list.
  • Total of 52 subscribers to the user list.
  • Total of 10 committers
  • Total of 10 PMC members


  • There are no issues requiring board attention at this time.
  • No labels