* bug with cache/tiering and snapshot reads
@ 2015-09-08 23:18 Loic Dachary
2015-09-09 0:55 ` Jason Dillaman
0 siblings, 1 reply; 3+ messages in thread
From: Loic Dachary @ 2015-09-08 23:18 UTC (permalink / raw)
To: Jason Dillaman; +Cc: Ceph Development
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Hi Jason,
Does "bug with cache/tiering and snapshot reads" http://tracker.ceph.com/issues/12748 sound familiar to you ? Although it looks like a tiering problem, it involves rbd and maybe it rings a bell ? If not, don't worry about it and I'll dig further: I can repeat it every time using the script from the description. I kind of remember something similar but it involved erasure coded pools and is probably different.
Cheers
--
Loïc Dachary, Artisan Logiciel Libre
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: bug with cache/tiering and snapshot reads
2015-09-08 23:18 bug with cache/tiering and snapshot reads Loic Dachary
@ 2015-09-09 0:55 ` Jason Dillaman
2015-09-09 7:04 ` Loic Dachary
0 siblings, 1 reply; 3+ messages in thread
From: Jason Dillaman @ 2015-09-09 0:55 UTC (permalink / raw)
To: Loic Dachary; +Cc: Ceph Development
> Does "bug with cache/tiering and snapshot reads"
> http://tracker.ceph.com/issues/12748 sound familiar to you ? Although it
> looks like a tiering problem, it involves rbd and maybe it rings a bell ? If
> not, don't worry about it and I'll dig further: I can repeat it every time
> using the script from the description. I kind of remember something similar
> but it involved erasure coded pools and is probably different.
I believe it's related to this thread [1]. There is an cache tier / EC pool issue wrt proxied writes, but this is different.
--
Jason Dillaman
[1] http://article.gmane.org/gmane.comp.file-systems.ceph.user/22901
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: bug with cache/tiering and snapshot reads
2015-09-09 0:55 ` Jason Dillaman
@ 2015-09-09 7:04 ` Loic Dachary
0 siblings, 0 replies; 3+ messages in thread
From: Loic Dachary @ 2015-09-09 7:04 UTC (permalink / raw)
To: Jason Dillaman; +Cc: Ceph Development
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Hi Jason,
Thanks for the quick reply :-)
Cheers
On 09/09/2015 02:55, Jason Dillaman wrote:
>> Does "bug with cache/tiering and snapshot reads"
>> http://tracker.ceph.com/issues/12748 sound familiar to you ? Although it
>> looks like a tiering problem, it involves rbd and maybe it rings a bell ? If
>> not, don't worry about it and I'll dig further: I can repeat it every time
>> using the script from the description. I kind of remember something similar
>> but it involved erasure coded pools and is probably different.
>
> I believe it's related to this thread [1]. There is an cache tier / EC pool issue wrt proxied writes, but this is different.
>
--
Loïc Dachary, Artisan Logiciel Libre
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2015-09-08 23:18 bug with cache/tiering and snapshot reads Loic Dachary
2015-09-09 0:55 ` Jason Dillaman
2015-09-09 7:04 ` Loic Dachary
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