Yes, only 14.7% :-( 2010-10-21 10:59:06,675 DEBUG org.apache.hadoop.hbase.io.hfile.LruBlockCache: Cache Stats: Sizes: Total=572.39557MB (600200272), Free=125.94194MB (132059696), Max=698.3375MB (732259968), Counts: Blocks=8992, Access=235641, Hit=34786, Miss=200855, Evictions=173, Evicted=191863, Ratios: *Hit Ratio=14.762286841869354**%*, Miss Ratio=85.23771166801453%, Evicted/Run=1109.03466796875
I agree much better performance with more cache, because that can improve the hit ratio in random read, but I want to know why I disabled block cache and got better throughput than default? 2010/10/21 Antonio Alvarado Hernández <[email protected]> > Hi all, > Could be related with a low hit ratio? > -aah > >
