HBASE-10922: Log splitting status should always be closed
HBASE-11126-Add RegionObserver pre hooks that operate under row lock (Ram)
HBASE-10641 Configurable Bucket Sizes in bucketCache
HBASE-11118 non environment variable solution for "IllegalAccessError: class com.google.protobuf.ZeroCopyLiteralByteString cannot access its superclass com.google.protobuf.LiteralByteString"