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Bygning 109, rum S14
From: Paul Emmerich
Sent: 21 May 2019 09:45
To: Frank Schilder
Cc: Florent B; ceph-users
Subject: Re: [ceph-users] Default min_size value for EC pools
No, there is no split brain problem even with size/mine_size 2/1. A PG will not
==
> Frank Schilder
> AIT Risø Campus
> Bygning 109, rum S14
>
>
> From: Florent B
> Sent: 20 May 2019 21:33
> To: Paul Emmerich; Frank Schilder
> Cc: ceph-users
> Subject: Re: [ceph-users] Default min_size value f
Not sure. In general important fixes get backported, but will have to
wait and see.
/Maged
On 20/05/2019 22:11, Frank Schilder wrote:
Dear Maged,
thanks for elaborating on this question. Is there already information in which
release this patch will be deployed?
Best regards,
Dear Maged,
thanks for elaborating on this question. Is there already information in which
release this patch will be deployed?
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
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ceph-users mailing list
9, rum S14
From: Florent B
Sent: 20 May 2019 21:33
To: Paul Emmerich; Frank Schilder
Cc: ceph-users
Subject: Re: [ceph-users] Default min_size value for EC pools
I understand better thanks to Frank & Paul messages.
Paul, when min_size=k, is it the same problem with replicat
On 20/05/2019 19:37, Frank Schilder wrote:
This is an issue that is coming up every now and then (for example:
https://www.mail-archive.com/ceph-users@lists.ceph.com/msg50415.html) and I would consider it a
very serious one (I will give an example below). A statement like "min_size = k is
9, rum S14
From: Paul Emmerich
Sent: 20 May 2019 21:23
To: Frank Schilder
Cc: florent; ceph-users
Subject: Re: [ceph-users] Default min_size value for EC pools
Yeah, the current situation with recovery and min_size is... unfortunate :(
The reason why min_size = k is b
Yeah, the current situation with recovery and min_size is... unfortunate :(
The reason why min_size = k is bad is just that it means you are accepting
writes without guaranteeing durability while you are in a degraded state.
A durable storage system should never tell a client "okay, i've written
This is an issue that is coming up every now and then (for example:
https://www.mail-archive.com/ceph-users@lists.ceph.com/msg50415.html) and I
would consider it a very serious one (I will give an example below). A
statement like "min_size = k is unsafe and should never be set" deserves a bit
https://ceph.com/community/new-luminous-erasure-coding-rbd-cephfs/
-Original Message-
From: Florent B [mailto:flor...@coppint.com]
Sent: zondag 19 mei 2019 12:06
To: Paul Emmerich
Cc: Ceph Users
Subject: Re: [ceph-users] Default min_size value for EC pools
Thank you Paul for your
Default is k+1 or k if m == 1
min_size = k is unsafe and should never be set.
Paul
--
Paul Emmerich
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On Sun, May 19, 2019 at 11:31 AM
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