Hey 易剑, Your proposed system sounds quite a bit like Zebra, which is a contributed project under the Pig subproject: http://wiki.apache.org/pig/zebra. Have you taken a look at Zebra?
Thanks, Jeff 2010/2/4 易剑 <myhad...@gmail.com> > *Glossary* > DTS: Distributed Table System, not a bigtable > DFS: Distributed File System > > > DFS is better for unstructed data, but DTS is better for structed data, > data > warehouse is structed, so I think a table is better than a file. DTS is > following: > 1. Break a logic big table into a many physical small table > 2. The same size blocks is not necessary > 3. The order of blocks is not necessary > 4. Only store structed data > 5. Support block indexes > 6. Support deleting and updating > 7. The interfaces are SQL, but only a block > 8. Spliting a table horizontally and vertically is supported at the same > time > 9. 。。。 >
