fix race referencing tokenMetadataCache
patch by jbellis; reviewed by rbranson for CASSANDRA-6485
merge from 1.2
Merge branch 'cassandra-2.0' into trunk
Merge branch 'trunk' of http://git-wip-us.apache.org/repos/asf/cassandra into trunk
transport模块相关注释
transport模块相关文档与注释