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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Trivial Update of "Hbase/FAQ" by stack
Date Tue, 28 Oct 2008 03:56:26 GMT
Dear Wiki user,

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The following page has been changed by stack:
http://wiki.apache.org/hadoop/Hbase/FAQ

The comment on the change is:
performance notest

------------------------------------------------------------------------------
  
  Some basic tests making the '''io.bytes.per.checksum''' larger -- changing it from checksum-checking
every 4096 bytes instead of every 512 bytes -- seem to have no discernible effect on performance.
  
+ A couple of lads report that hbase runs faster when the cluster is balanced; see the balancer
in hadoop, '''./bin/hadoop balancer'''.
+ 
+ As of hbase 0.19.0, giving hbase more memory for its caches to work with improves performance.
+ 
  
  '''8. [[Anchor(8)]] How do I access Hbase from my Ruby/Python/Perl/PHP/etc. application?'''
  

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