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From Todd Lipcon <t...@cloudera.com>
Subject Re: Kudu on top of Alluxio
Date Mon, 27 Mar 2017 16:55:33 GMT
On Sat, Mar 25, 2017 at 2:54 PM, Mike Percy <mpercy@apache.org> wrote:

> Kudu currently relies on local storage on a POSIX file system. Right now
> there is no support for S3, which would be interesting but is non-trivial
> in certain ways (particularly if we wanted to rely on S3's replication and
> disable Kudu's app-level replication).
>
> I would suggest using only either EXT4 or XFS file systems for production
> deployments as of Kudu 1.3, in a JBOD configuration, with one SSD per
> machine for the WAL and with the data disks on either SATA or SSD drives
> depending on the workload. Anything else is untested AFAIK.
>

I would amend this and say that SSD for the WAL is nice to have, but not a
requirement. We do lots of testing on non-SSD test clusters and I'm aware
of many production clusters which also do not have SSD.

-Todd
-- 
Todd Lipcon
Software Engineer, Cloudera

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