HBASE-9191 Update Loadbalancer method to throw HBaseIOException

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1514155 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9177 Cluster UUID is not properly parsable after rewriting to PB.

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1514161 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9193 Make what Chaos monkey actions run configurable per test.

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1514163 13f79535-47bb-0310-9956-ffa450edef68