Re: [Moosefs-users] Master node memory limitation

[Rustam A. <ru...@gm...>]

Hi Steve,

Thanks for information.

Just to clarify - will it use disk space only (and no RAM at all) or it will
mix RAM and disk by keeping most recently used metadata in RAM?

Also I noticed that block size is 64KiB. Is there any chance to change this?
My files in average are 10K.

Many thanks,
Rustam.

On 13 January 2011 10:05, Steve <st...@bo...> wrote:

>
> It will use disk space instead.
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>
> My 4 chunk server , 100,000 files, 6tb system runs happily with just 256mb
> ram in the master of course just 1-2 users!!
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> -------Original Message-------
>
>
>
> From: Rustam Aliyev
>
> Date: 13/01/2011 08:25:20
>
> To: moo...@li...
>
> Subject: [Moosefs-users] Master node memory limitation
>
>
>
> Hello,
>
>
>
>
>
> I'm new to MooseFS and was wondering what will happen if Master server will
> not have enough RAM to keep all metadata in memory?
>
> Does it mean that whole FS will became unavailable if I hit maximum RAM?
>
> Is there any way to limit RAM usage and load only recent files to memory?
>
>
>
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> In my case I have 15-20 million files and about 80% is not accessed at all
> or very rarely.
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>
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> Thanks for help,
>
> Rustam.
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