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From Radim Kolar <...@filez.com>
Subject Re: real leveldb vs cassandra leveldb
Date Thu, 14 Feb 2013 13:48:49 GMT
Dne 13.2.2013 16:32, Jonathan Ellis napsal(a):
> The only point here that would make a difference in practice is
> leveldb using a worse hash function.  For us it's not worth making
> partitioning worse to make compaction better.
then use two hash functions. one for spliting rows to nodes and second 
for index inside leveldb.

too much compactions is major problem of leveldb implementation in 
cassandra. Cassandra implements initial leveldb design ignoring 
improvements in about last 2 years in leveldb. You can try it yourself 
by benchmarking original and current leveldb.

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