* 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 [-- Attachment #1: Type: text/plain, Size: 485 bytes --] 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 [-- Attachment #2: OpenPGP digital signature --] [-- Type: application/pgp-signature, Size: 198 bytes --] ^ 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 [-- Attachment #1: Type: text/plain, Size: 726 bytes --] 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 [-- Attachment #2: OpenPGP digital signature --] [-- Type: application/pgp-signature, Size: 198 bytes --] ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2015-09-09 7:04 UTC | newest] Thread overview: 3+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 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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