On 1/10/17, 2:56 AM, "ceph-users on behalf of Breunig, Steve (KASRL)"
<ceph-users-bounces@xxxxxxxxxxxxxx on behalf of
steve.breunig@xxxxxxxxxxxxxxx> wrote:
>Hi list,
>
>
>I'm running a cluster which is currently in migration from hammer to
>jewel.
>
>
>Actually i have the problem, that the tunables are flapping and a map of
>an rbd image is not working.
>
>
>It is flapping between:
>
>
>{
> "choose_local_tries": 0,
> "choose_local_fallback_tries": 0,
> "choose_total_tries": 50,
> "chooseleaf_descend_once": 1,
> "chooseleaf_vary_r": 1,
> "chooseleaf_stable": 0,
> "straw_calc_version": 1,
> "allowed_bucket_algs": 54,
> "profile": "hammer",
> "optimal_tunables": 0,
> "legacy_tunables": 0,
> "minimum_required_version": "hammer",
> "require_feature_tunables": 1,
> "require_feature_tunables2": 1,
> "has_v2_rules": 0,
> "require_feature_tunables3": 1,
> "has_v3_rules": 0,
> "has_v4_buckets": 1,
> "require_feature_tunables5": 0,
> "has_v5_rules": 0
>}
>
>
>and
>
>
>{
> "choose_local_tries": 0,
> "choose_local_fallback_tries": 0,
> "choose_total_tries": 50,
> "chooseleaf_descend_once": 1,
> "chooseleaf_vary_r": 1,
> "straw_calc_version": 1,
> "allowed_bucket_algs": 54,
> "profile": "hammer",
> "optimal_tunables": 0,
> "legacy_tunables": 0,
> "require_feature_tunables": 1,
> "require_feature_tunables2": 1,
> "require_feature_tunables3": 1,
> "has_v2_rules": 0,
> "has_v3_rules": 0,
> "has_v4_buckets": 1
>}
>
>
>Did someone have that problem too?
>How can it be solved?
Have you upgraded all the mon nodes? My guess is that when you're running
'ceph osd crush show-tunables' it's sometimes being reported from a hammer
mon node and sometimes from a jewel mon node.
You can run 'ceph tell mon.* version' to verify they're all running the
same version.
When you say the map is failing, are you using the kernel rbd driver? If
so you might need to upgrade your kernel to support the new features in
jewel.
Bryan
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