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From Mohit Anchlia <mohitanch...@gmail.com>
Subject Re: WARN [Memtable] live ratio
Date Wed, 01 Feb 2012 03:41:14 GMT
I guess this is not really a WARN in that case.

On Tue, Jan 31, 2012 at 4:29 PM, aaron morton <aaron@thelastpickle.com> wrote:
> The ratio is the ratio of serialised bytes for a memtable to actual JVM
> allocated memory. Using a ratio below 1 would imply the JVM is using less
> bytes to store the memtable in memory than it takes to store it on disk
> (without compression).
>
> The ceiling for the ratio is 64.
>
> The ratio is calculated periodically so if the workload changes, such as
> system start up, the number will lag behind. I would guess numbers less than
> 1 mean the memtable does not have any data.
>
> Cheers
>
> -----------------
> Aaron Morton
> Freelance Developer
> @aaronmorton
> http://www.thelastpickle.com
>
> On 1/02/2012, at 8:27 AM, Radim Kolar wrote:
>
>
>  but a ration of<  1 may occur
>
> for column families with  a very high update to insert ratio.
>
> better to ask why minimum ratio is 1.0. What harm can be done with using <
> 1.0 ratio?
>
>

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