This isn't "Iron Chef American Idol All Stars HBase Edition", showing that you can actually provide some form of answer is already a #win by itself.
J-D On Mon, Mar 28, 2011 at 9:52 AM, Weishung Chung <[email protected]> wrote: > Thank you Jean for the reading materials, I've been reading the source codes > and searching on the internet and have a very vague idea how everything is > working. Give me a few more days(don't want to embarrass myself), I will > check back with you guys to see if my understanding is correct or not :D > Have a good day, thanks again :) > > On Mon, Mar 28, 2011 at 11:23 AM, Jean-Daniel Cryans <[email protected]> > wrote: >> >> I think you are asking for a bit too much :) >> >> Let's do it the other way, show us what you think are the answers to >> your questions based on currently available documentation and by >> looking at the source code, then I'm pretty sure someone will be happy >> to verify it. >> >> Start by looking at the bigtable paper, then use Lars George's blog posts >> like: >> >> http://www.larsgeorge.com/2009/10/hbase-architecture-101-storage.html >> >> http://www.larsgeorge.com/2010/01/hbase-architecture-101-write-ahead-log.html >> http://www.larsgeorge.com/2010/05/hbase-file-locality-in-hdfs.html >> >> And then try diving into the code. >> >> Good luck! >> >> J-D >> >> On Sat, Mar 26, 2011 at 8:57 AM, Weishung Chung <[email protected]> >> wrote: >> > Dear fellow HBase developers, >> > >> > Could someone educate me and let me know how to figure out the number of >> > disk seeks involved in a range search (startRow to endRow specified in >> > Scan). Also, could anyone give me the details of all the steps involved >> > once >> > the Scan for range retrieval is called? I know somehow it needs to >> > figure >> > out the regionservers used in hosting the rows but I still don't have a >> > clear understanding the whole steps involved :( :( Also, there is a data >> > index block in HFile, I was wondering how the index block is utilized in >> > figuring out the location of all the rows. >> > >> > Thank you so much for satisfying my curiosity :) >> > >> > Have a good weekend and enjoy :) >> > >> > Wei Shung >> > > >
