No bloomfilters in 0.20.x hbase. They were removed a while ago because poorly implemented. It looks like we did not excise it from everywhere.
Bloomfilters will make a comeback in hbase 0.90.0. They have been completely redone and are super fancy. Check them out in the recent developer release drop, 0.89.20100625 Stack On Jun 29, 2010, at 2:40 AM, Zhou Shuaifeng <[email protected]> wrote: > Hi, > > I looked into the source code of hbase, find that the default value of using > bloomfilter is all false. > In the HColumnDescriptor, there is name and default value of bloomfilter. > But I can't find any function to deal with the bloomfilter when the onoff of > bloombilter is TRUE. > > So, what operation does hbase do when the bloomfilter onoff is setting to > True? How to set it if bloomfilter is needed when add column or alter table? > And how to configer the bloomfilter ? (like vector size, nmhash, etc..) > > Thanks. > > > > ---------------------------------------------------------------------------- > --------------------------------------------------------- > This e-mail and its attachments contain confidential information from > HUAWEI, which > is intended only for the person or entity whose address is listed above. Any > use of the > information contained herein in any way (including, but not limited to, > total or partial > disclosure, reproduction, or dissemination) by persons other than the > intended > recipient(s) is prohibited. If you receive this e-mail in error, please > notify the sender by > phone or email immediately and delete it! > >
