[REEF-1451] Clean up IMRU Fault Tolerant scenario tests

This change:
 * extends failures simulated with FailureType to include dispose.
 * adds tests for failure of mapper task on init and on dispose
   and failure of mapper evaluator on dispose.
 * cleans up checks and comments in other IMRU FT scenario tests.

JIRA:
  [REEF-1451](https://issues.apache.org/jira/browse/REEF-1451)

Pull request:
  This closes #1132
10 files changed
tree: ea0762a6f01cce734b9f44b63d5993c168343d84
  1. bin/
  2. dev/
  3. lang/
  4. website/
  5. .gitattributes
  6. .gitignore
  7. .travis.yml
  8. appveyor.yml
  9. Doxyfile
  10. HEADER
  11. LICENSE
  12. NOTICE
  13. pom.xml
  14. README.md
README.md

Apache REEF™

Apache REEF™ (Retainable Evaluator Execution Framework) is a library for developing portable applications for cluster resource managers such as Apache Hadoop YARN or Apache Mesos. For example, Microsoft Azure Stream Analytics is built on REEF and Hadoop.

Online Documentation

Detailed information on REEF can be found in the following places:

The developer mailing list is the best way to reach REEF‘s developers when the above aren’t sufficient.

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Apache 2.0