Cassandra 1.2.5 which compressor is better?

[rash aroskar <ra...@gmail.com>]

Hi,
I am setting up new cluster for cassandra 1.2.5, and first time using
cassandra compression.
I read about the compressors, and it gathered Snappy Compressor gives
better compression but is sslightly slower than LZ4 compressor. Just wanted
to know your experience and/or opinions as to *Snappy vs LZ4 , which
compressor is better in case of huge data, less writes but lots of reads.*


Thanks.
-Rashmi

Re: Cassandra 1.2.5 which compressor is better?

[Robert Coli <rc...@eventbrite.com>]

On Fri, Aug 9, 2013 at 4:43 PM, rash aroskar <ra...@gmail.com>wrote:

> I am setting up new cluster for cassandra 1.2.5, and first time using
> cassandra compression.
> I read about the compressors, and it gathered Snappy Compressor gives
> better compression but is sslightly slower than LZ4 compressor. Just wanted
> to know your experience and/or opinions as to *Snappy vs LZ4 , which
> compressor is better in case of huge data, less writes but lots of reads.*
>
>

https://issues.apache.org/jira/browse/CASSANDRA-5038

In general LZ4 is supposed to be better than Snappy, which is why it was
added. The LZ4 site (iirc?) has some charts explaining its performance
compared to Snappy in various cases. There's also the charts at
https://github.com/ning/jvm-compressor-benchmark/wiki.

=Rob