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On 11/1/2019 10:22 AM, Matt Riedemann wrote:
> On 11/1/2019 9:55 AM, Clark Boylan wrote:
>> OVH controls the disk IOPs that we get pretty aggressively as well. 
>> Possible it is an IO thing?
> 
> Yeah, so looking at the dstat output in that graph (thanks for pointing 
> out that site, really nice) we basically have 0 I/O from 16:53 to 16:55, 
> so uh, that's probably not good.

Dredging this back up after discussing with Clark in IRC today. I've 
posted a patch to disable c-bak and etcd3 in grenade jobs [1]. The hope 
is this will alleviate some pressure on OVH nodes where iops are 
restricted. We aren't even effectively doing anything with c-bak and 
etcd3 in grenade jobs so this should not be controversial.

[1] https://review.opendev.org/#/c/700214/

-- 

Thanks,

Matt