On Thu, Jul 21, 2016 at 9:58 AM, David Gossage <dgossage@xxxxxxxxxxxxxxxxxx> wrote:
On Thu, Jul 21, 2016 at 9:52 AM, Niels de Vos <ndevos@xxxxxxxxxx> wrote:On Sun, Jul 10, 2016 at 10:49:52AM +1000, Lindsay Mathieson wrote:
> Did a quick test this morning - 3.7.13 is now working with libgfapi - yay!
>
>
> However I do have to enable write-back or write-through caching in qemu
> before the vm's will start, I believe this is to do with aio support. Not a
> problem for me.
>
> I see there are settings for storage.linux-aio and storage.bd-aio - not sure
> as to whether they are relevant or which ones to play with.
Both storage.*-aio options are used by the brick processes. Depending on
what type of brick you have (linux = filesystem, bd = LVM Volume Group)
you could enable the one or the other.
We do have a strong suggestion to set these "gluster volume group .."
options:
https://github.com/gluster/glusterfs/blob/master/extras/group-virt.example
>From those options, network.remote-dio seems most related to your aio
theory. It was introduced with http://review.gluster.org/4460 that
contains some more details.
Wonder if this may be related at all
* #1347553: O_DIRECT support for sharding
Is it possible to downgrade from 3.8 back to 3.7.x
Building test box right now anyway but wondering.
Thanks with the exception of stat-prefetch I have those enabledI could try turning that back off though at the time of update to 3.7.13 it was off. I didnt turn it back on till later in next week after downgrading back to 3.7.11.Number of Bricks: 1 x 3 = 3Transport-type: tcpBricks:Brick1: ccgl1.gl.local:/gluster1/BRICK1/1Brick2: ccgl2.gl.local:/gluster1/BRICK1/1Brick3: ccgl4.gl.local:/gluster1/BRICK1/1Options Reconfigured:diagnostics.brick-log-level: WARNINGfeatures.shard-block-size: 64MBfeatures.shard: onperformance.readdir-ahead: onstorage.owner-uid: 36storage.owner-gid: 36performance.quick-read: offperformance.read-ahead: offperformance.io-cache: offperformance.stat-prefetch: oncluster.eager-lock: enablenetwork.remote-dio: enablecluster.quorum-type: autocluster.server-quorum-type: serverserver.allow-insecure: oncluster.self-heal-window-size: 1024cluster.background-self-heal-count: 16performance.strict-write-ordering: offnfs.disable: onnfs.addr-namelookup: offnfs.enable-ino32: off
HTH,
Niels
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