tree d171976ee142bf83e096fb6bb0c171e7886250f7
parent 0348e54ec13bd8f267670167af55b8f6797b24bd
author Chenxi Zhao <33109414+chzhams@users.noreply.github.com> 1517935269 -0800
committer Sergiy Matusevych <motus@apache.org> 1518645069 -0800

[REEF-1977] Fix for OSUtils.getPID() random fails

   * Add return value check for `process.waitFor()`
   * Log error stream if getting PID failed

JIRA:
  [REEF-1977](https://issues.apache.org/jira/browse/REEF-1977)

Pull request:
  This closes #1430