Mohit, According to HBase: The Definitive Guide,
The row+column Bloom filter is useful when you cannot batch updates for a specific row, and end up with store files which all contain parts of the row. The more specific row+column filter can then identify which of the files contain the data you are requesting. Obviously, if you always load the entire row, this filter is once again hardly useful, as the region server will need to load the matching block out of each file anyway. Since the row+column filter will require more storage, you need to do the math to determine whether it is worth the extra resources. ~ Minh On Thu, Jul 26, 2012 at 4:30 PM, Mohit Anchlia <[email protected]>wrote: > Is it advisable to enable bloom filters on the column family? > > Also, why is it called global kill switch? > > Bloom Filter Configuration > 2.9.1. io.hfile.bloom.enabled global kill switch > > io.hfile.bloom.enabled in Configuration serves as the kill switch in case > something goes wrong. Default = true. >
