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Date: Mon, 2 Jul 2012 13:51:01 +0200
Message-ID: 
 <CAKkz8Q116=F+AO38_BOjX3LDCTHJf8KnVwbSGXPJdCt-D=9nvQ@mail.gmail.com>
Subject: Re: BulkLoading SSTables and compression
From: Sylvain Lebresne <sylvain@datastax.com>
To: user@cassandra.apache.org
Cc: cassandra-user@incubator.apache.org
Content-Type: text/plain; charset=ISO-8859-1

On Mon, Jul 2, 2012 at 1:24 PM, jmodha <jmodha@gmail.com> wrote:
> Out of interest, we're not specifying a specific chunk size on the schema
> (in the hope that it would just use the default of 64kb), so it reads
> something like:

Actually, we've had bugs related to the handling of the chunk size in early 1.0
releases and if I remember correctly that was fully fixed only in
1.0.5. So it is
possible that your 1.0.3 sstables are cmpressed but with a ridiculously low
chunk size (like 64 bytes instead of 64K), which would amount to no
compression.

In that case then yes it is a bug, but one that has been fixed by
upgrading to 1.1.

--
Sylvain

> "create column family test
>   with column_type = 'Standard'
>   and comparator = 'BytesType'
>   and default_validation_class = 'UTF8Type'
>   and key_validation_class = 'BytesType'
>   and compaction_strategy =
> 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy'
>   and compression_options = {'sstable_compression' :
> 'org.apache.cassandra.io.compress.SnappyCompressor'};"
>
> Would this cause any issues?
>
>
>
> --
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