mahout-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Sean Owen <sro...@gmail.com>
Subject Re: Hadoop serialization compression and precision loss
Date Thu, 14 Jul 2011 14:49:42 GMT
Nope, it is just serializing with the Java primitive methods, and this
serializes an 8-byte double in 8 bytes as represented in memory.

No, the compression could not be lossy, or else it would quickly break
things!

On Thu, Jul 14, 2011 at 3:40 PM, Dhruv Kumar <dkumar@ecs.umass.edu> wrote:
>
> Interesting, are there factors specific to Hadoop (not just subtleties of
> Java or the OS) which can affect accuracy and I should be concerned about?
>
> Also, Sequence File stores compressed key value pairs does it not? Is that
> compression lossy?
>
>

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message