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Posted to common-user@hadoop.apache.org by "yifeng.jiang" <yi...@mail.rakuten.com> on 2011/09/02 09:57:45 UTC

ext4 with or without journaling

Hi,

What's your opinions on ext4 and ext4 without journaling?
Which one is better as the underlying file system?

Wondering if there are others using ext4 without journaling for hadoop.

Many thanks in advance for your kind response.

Regards,

-Yifeng

Re: ext4 with or without journaling

Posted by sridhar basam <sr...@basam.org>.

On Fri, Sep 2, 2011 at 3:57 AM, yifeng.jiang
<yi...@mail.rakuten.com>wrote:

> Hi,
>
> What's your opinions on ext4 and ext4 without journaling?
> Which one is better as the underlying file system?
>
> Wondering if there are others using ext4 without journaling for hadoop.
>
>
Running without a journal is not a good idea in this case, imo. You have to
ask yourself if the much longer fsck times in case of a failure is worth the
marginal improvement in performance.

 Sridhar