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From Colin Blower <cblo...@barracuda.com>
Subject Re: sstable size ?
Date Wed, 17 Jul 2013 23:49:59 GMT
Take a look at the very recent thread called 'Alternate "major
compaction"'. There are some ideas in there about splitting up a large
SSTable.

http://www.mail-archive.com/user@cassandra.apache.org/msg30956.html


On 07/17/2013 04:17 PM, Langston, Jim wrote:
> Hi all,
>
> Is there a way to get an SSTable to a smaller size ? By this I mean
> that I 
> currently have an SSTable that is nearly 1.2G, so that subsequent SSTables
> when they compact are trying to grow to that size. The result is that
> when 
> the min_compaction_threshold reaches it value and a compaction is needed, 
> the compaction is taking a long time as the file grows (it is
> currently at 52MB and
> takes ~22s to compact).
>
> I'm not sure how the SSTable initially grew to its current size of
> 1.2G, since the
> servers have been up for a couple of years. I hadn't noticed until I
> just upgraded to 1.2.6,
> but now I see it affects everything. 
>
>
> Jim


-- 
*Colin Blower*
/Software Engineer/
Barracuda Networks Inc.
+1 408-342-5576 (o)

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