HDFS-5637. Try to refeatchToken while local read InvalidToken occurred. (Liang Xie via junping_du)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1550335 13f79535-47bb-0310-9956-ffa450edef68
Merging r1550313 through r1550355 from trunk to branch HDFS-2832

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/HDFS-2832@1550356 13f79535-47bb-0310-9956-ffa450edef68