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From Jeremy Davis <>
Subject Re: about cassandra compression
Date Tue, 27 Jul 2010 17:46:21 GMT
I've been wondering about this question as well, but from a different angle.
More along the lines of should I bother to compress myself? Specifically in
cases where I might want to take several small columns and compress into 1
more compact column. Each column by itself is pretty spartan and won't
benefit from compression on its own. However a collection of columns
certainly would.

I see that there is work in 0.8 to compress the SSTables on disk, which is
great and is half the problem. But what about on the wire? Will the planned
Avro work provide any compression on data to/from the Cassandra Server?


On Mon, Jul 26, 2010 at 3:35 AM, Ran Tavory <> wrote:

> cassandra doesn't compress before storing, no.
> It may be beneficial to compress, depending on the size of your data,
> network latency, disk size and data compressability... You'll need to test.
> I sometimes compress, depending on data size but it's done in the client,
> On Mon, Jul 26, 2010 at 1:31 PM, john xie <> wrote:
>> is cassandra  compression before stored?
>> when I stored the data,  is  compression  beneficial to reduce the
>> storage space?

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