HBASE-9152 Not able to find HMaster and HRegionServer processes with grep by process name on ps result because of large classpath as argument.

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1512560 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9187 HBaseAdmin#testTableExists can go zombie

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1512564 13f79535-47bb-0310-9956-ffa450edef68