[Gluster-users] AFR Version used for self-heal

Krutika Dhananjay kdhananj at redhat.com
Fri Feb 26 01:25:26 UTC 2016

----- Original Message -----

> From: "Kyle Maas" <kyle at virtualinterconnect.com>
> To: gluster-users at gluster.org
> Sent: Thursday, February 25, 2016 11:36:53 PM
> Subject: [Gluster-users] AFR Version used for self-heal

> How can I tell what AFR version a cluster is using for self-heal?

> The reason I ask is that I have a two-node replicated 3.7.8 cluster (no
> arbiters) which has locking behavior during self-heal which looks very
> similar to that of AFRv1 (only heals one file at a time per self-heal
> daemon, appears to lock the full inode while it's healing it instead of
> just ranges, etc.), but I don't know how I would check the version to
> confirm that suspicion. I've seen mention of needing to explicitly
> enable AFRv2 when upgrading Gluster from an older version, and this
> cluster was one that started at an older Gluster version and was
> upgraded in accordance with the upgrade docs, but I cannot seem to find
> any documentation on enabling newer versions of AFR or even checking
> which one I'm running at. cluster.op-version for this cluster is
> currently at 30603, and both nodes are CentOS 7 running Gluster 3.7.8.

> Any help would be appreciated. Thanks!
So if you bring one of the replicas down, create a file, and check its extended attributes from the backend (`getfattr -d -m . -e hex <path-to-the-file-from-the-brick-path-that-is-online`), 
do you see this appearing in the list: 



> Warm Regards,
> Kyle Maas

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