On Tue, Oct 16, 2012 at 9:06 PM, Ramkrishna.S.Vasudevan <[email protected]> wrote: > Hi Yun Peng > > You want to know the creation time? I could see the getModificationTime() > api. Internally it is used to get a store file with minimum timestamp. > I have not tried it out. Let me know if it solves your purpose. > Just try it out. >
To add to Rams' response, if you have a reader on the file, you can get some of its attributes (which I believe come from metadata block -- you should check the code) and you can iterate the metadata too which has stuff first and last keys, average size, etc. See here: http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/io/hfile/HFile.Reader.html To look at a particular file's metadata, see the hfile tool at "9.7.5.2.2. HFile Tool" in the reference guide. St.Ack
