Thanks for the help, Roberto. Sure, send a pull request.
On 01/03/2013 01:31 PM, Roberto Aguilar wrote:
Thanks for clarifying, Mark. I made a quick change to the docs:
https://github.com/rca/ceph/commit/37b57cdf0fdc5c03eeff3f5eb58ff4010ce581f6
Can I send you a pull request?
Thanks,
-Roberto.
On Thu, Jan 3, 2013 at 1:20 PM, Mark Nelson <mark.nelson@xxxxxxxxxxx> wrote:
On 01/03/2013 03:16 PM, Roberto Aguilar wrote:
Hello,
I read the "Filesystems" section in the "Hard disk and file system
recommendations" [1] documentation and was confused on whether or not
I should be using the setting:
filestore xattr use omap = true
The section reads:
"[...] but the ext4 is too small to be usable. To use these file
systems, you should add the following like to the [osd] section of
your ceph.conf file.:"
Does that mean I the setting applies to systems that are using ext4,
or does it apply to _any_ filesystem that was mentioned, i.e. btrfs,
xfs, and ext4.
Thanks!
-Roberto.
[1]
http://ceph.com/docs/master/rados/configuration/filesystem-recommendations/
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Hi Roberto,
You should always use "filestore xattr use omap = true" with EXT4. You can
optionally use it for BTRFS and XFS. I've done a bit of testing and haven't
yet been able to determine if there is any significant advantage or
disadvantage to using it on BTRFS and XFS from a performance perspective.
So far the performance differences haven't been consistent or significant
enough to be conclusive.
Mark
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