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From Yuki Morishita <mor.y...@gmail.com>
Subject Re: leveled compaction
Date Fri, 08 Mar 2013 22:31:14 GMT
no. sstables are eventually compacted and moved to next level.

On Friday, March 8, 2013, Kanwar Sangha wrote:

>  Cool ! So of we exceed the threshold, is that an issue… ?****
>
> ** **
>
> *From:* Yuki Morishita [mailto:mor.yuki@gmail.com <javascript:_e({},
> 'cvml', 'mor.yuki@gmail.com');>]
> *Sent:* 08 March 2013 15:57
> *To:* user@cassandra.apache.org <javascript:_e({}, 'cvml',
> 'user@cassandra.apache.org');>
> *Subject:* Re: leveled compaction****
>
> ** **
>
> It is SSTable counts in each level. ****
>
> SSTables in each level: [40/4, 442/10, 97, 967, 7691, 0, 0, 0]****
>
>  So you have 40 SSTables in L0, 442 in L1, 97 in L2 and so forth.****
>
> '40/4' and '442/10' have numbers after slash, those are expected maximum
> number of****
>
> SSTables in that level and only displayed when you have more than that
> threshold.****
>
> On Friday, March 8, 2013 at 3:24 PM, Kanwar Sangha wrote:****
>
>   Hi – ****
>
>  ****
>
> Can someone explain the meaning for the levelled compaction in cfstats –**
> **
>
>  ****
>
> SSTables in each level: [40/4, 442/10, 97, 967, 7691, 0, 0, 0]****
>
>  ****
>
> SSTables in each level: [61/4, 9, 92, 945, 8146, 0, 0, 0]****
>
>  ****
>
> SSTables in each level: [34/4, 1000/10, 100, 953, 8184, 0, 0, 0****
>
>  ****
>
>  ****
>
> Thanks,****
>
> Kanwar****
>
>  ****
>
>  ** **
>


-- 
Yuki Morishita
 t:yukim (http://twitter.com/yukim)

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