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From aaron morton <aa...@thelastpickle.com>
Subject Re: sstable size ?
Date Thu, 18 Jul 2013 09:41:24 GMT
Does this help ? http://www.mail-archive.com/user@cassandra.apache.org/msg30973.html

Can you pull the data off the node so you can test it somewhere safe ? 

Cheers

-----------------
Aaron Morton
Cassandra Consultant
New Zealand

@aaronmorton
http://www.thelastpickle.com

On 18/07/2013, at 2:20 PM, "Langston, Jim" <Jim.Langston@compuware.com> wrote:

> Thanks, this does look like what I'm experiencing. Can someone 
> post a walkthrough ? The README and the sstablesplit script 
> don't seem to cover it use in any detail.
> 
> Jim
> 
> From: Colin Blower <cblower@barracuda.com>
> Reply-To: <user@cassandra.apache.org>
> Date: Wed, 17 Jul 2013 16:49:59 -0700
> To: "user@cassandra.apache.org" <user@cassandra.apache.org>
> Subject: Re: sstable size ?
> 
> 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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