>about column family level bloom filters You mean column blooms right? [Bloom on rowkey & cf+qualifier] >Are these filters in memory or are they just persisted as part of the HFile or >both All blooms will get persisted while writing the HFile. When the HFile is opened for read the bloom info will be read and will be available in memory. Only difference is what data is getting added to blooms.
-Anoop- ________________________________________ From: Varun Sharma [[email protected]] Sent: Tuesday, November 06, 2012 7:11 AM To: [email protected] Subject: Column Family level bloom filters Hi, I had a question about column family level bloom filters. Are these filters in memory or are they just persisted as part of the HFile or both ? For in-memory bloom filters, deletes could incur a high cost of rebuilding the bloom filter. Thanks VArun
