We dont use the standard hashing function, but one that exhibits fairly good properties of uniform output. This reduces the chance of a conflict, so while not impossible, it is unlikely.
On Sun, Dec 27, 2009 at 6:19 PM, Jeff Zhang <zjf...@gmail.com> wrote: > Hi all, > > I am interested to know the internal implementation of hbase, so I'd like to > deep into the source source. > I found that the variable onlineRegions in HRegionServer is a map type and > the key is the hashcode of region name. So wont't it cause conflict ? I mean > tow region name may have the same hashcode. Or does the hash code > implemetation guarantee that two region name won't have the same hashcode ? > > Thank you > > Jeff Zhnag >
