hbase-9098: During recovery use ZK as the source of truth for region state

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1510101 13f79535-47bb-0310-9956-ffa450edef68
hbase-9096: Disable split during log replay

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1510105 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9115 Addendum for server side fix (Ted Yu and Lars)



git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1510355 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9099: logReplay could trigger double region assignment

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1510615 13f79535-47bb-0310-9956-ffa450edef68
HBASE-7980 TestZKInterProcessReadWriteLock fails occasionally in QA test run

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1510753 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9095. AssignmentManager's handleRegion should respect the single threaded nature of the processing

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1510799 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8778 Region assigments scan table directory making them slow for huge tables

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1510977 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9126 Make HFile MIN VERSION as 2

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1511023 13f79535-47bb-0310-9956-ffa450edef68
merged from 0dce9993b76b999451becb16be53c746ffd837c6
fixed a bug in HFileLink and added more tests in TestHFileLink