hpcc-systems/HPCC-Platform — pull request #6353 by jakesmith (2014-08-13 17:57:19+00:00)
Title: HPCC-12094 Check if existing daserver running and abort out.

Existing mechanism was already in place for Windows builds using
a named mutex.
And there was already a named mutex implemented under Linux.

Signed-off-by: Jake Smith