amplab/tachyon — pull request #519 by shimingfei (2014-11-07 05:49:29+00:00)
Title: refact getFileStatus in TachyonFS

make getFileStatus(int fileId, TachyonURI path, boolean useCachedMetadata) call RPC to get ClientFileInfo from the master.
which makes the relations of overloaded functions simpler,
and it also makes the ClientFileInfo be cached, once getting data from the master.