On 12/1/20 3:07 PM, Jeff Layton wrote:
On Tue, 2020-12-01 at 14:23 -0500, David Galloway
wrote:
On 12/1/20 10:24 AM, Jeff Layton wrote:
On Tue, 2020-12-01 at 10:22 -0500, David Galloway
wrote:
On 12/1/20 9:55 AM, Jeff Layton wrote:
> I've been working on a patch series to overhaul the fscache code in the
> kclient. I also have this (really old) tracker to add fscache testing to
> teuthology:
>
>
https://tracker.ceph.com/issues/6373
>
> It would be ideal if the clients in such testing had a dedicated
> filesystem mounted on /var/cache/fscache, so that if it fills up it
> doesn't take down the rootfs with it. We'll also need to have
> cachefilesd installed and running in the client hosts.
>
> Is it possible to do this in teuthology? How would I approach this?
>
I think I can make this happen pretty easily in ceph-cm-ansible. What
I'd need from you is desired filesystem type and size. Once I'm done
with my end, we'll need to create a cephlab.ansible overrides yaml
fragment to stick in that suite's qa directory.
Ok, cool:
fstype: xfs or ext4 (either is fine)
size: ~50g or so would be ideal, but we can probably get away with less
if necessary
Getting there...
https://github.com/ceph/ceph-cm-ansible/pull/592
Can you give me an optimal cachefilesd.conf and I'll set that up in
ceph-cm-ansible too?
I never actually tweak the defaults in my local testing, so let's start
with a default cachefilesd.conf as installed by the package. If we need
to tweak it later, then we'll go from there.
K. I made it optional and used the package-provided defaults.
Your requested changes are implemented in ceph-cm-ansible. I've
attached the yaml fragments you'll need to pass on the
`teuthology-suite` command line to set up the partition, filesystem, and
cachefilesd service.
e.g., teuthology-suite ... ~/fs-cache-smithi.yml