hadoop-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Drake민영근 <drake....@nexr.com>
Subject Re: Question about Block size configuration
Date Tue, 12 May 2015 10:40:24 GMT
Hi

I think metadata size is not greatly different. The problem is the number
of blocks. The block size is lesser than 64MB, more block generated with
the same file size(if 32MB then 2x more blocks).

And, yes. all metadata is in the namenode's heap memory.

Thanks.


Drake 민영근 Ph.D
kt NexR

On Tue, May 12, 2015 at 3:31 PM, Himawan Mahardianto <mahardianto@ugm.ac.id>
wrote:

> thank you for the explanation, and how much byte each metadata will
> consuming in RAM if BS is 64MB or smaller than that? I heard every metadata
> will store on RAM right?
>

Mime
View raw message