Hi, Ram and Stack, It works for me, after an initial try out. Though the name seems a bit confusing, as hfile in hbase is immutable and not supposed to be "modified" afterwards, -) Regards, Yun
On Wed, Oct 17, 2012 at 1:09 AM, Stack <[email protected]> wrote: > 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 >
