I ended up destroying the EC pool and starting over. It was killing all of my OSD machines, and I couldn't keep anything working right with EC in use. So, no core dumps and I'm not in a place to reproduce easily anymore. This was with Giant on Ubuntu 14.04.
On Thu Feb 12 2015 at 7:07:38 AM Mark Nelson <mnelson@xxxxxxxxxx> wrote:
On 02/08/2015 10:41 PM, Scott Laird wrote:
> Does anyone have a good recommendation for per-OSD memory for EC? My EC
> test blew up in my face when my OSDs suddenly spiked to 10+ GB per OSD
> process as soon as any reconstruction was needed. Which (of course)
> caused OSDs to OOM, which meant more reconstruction, which fairly
> immediately led to a dead cluster. This was with Giant. Is this typical?
Doh, that shouldn't happen. Can you reproduce it? Would be especially
nice if we could get a core dump or if you could make it happen under
valgrind. If the CPUs are spinning, even a perf report might prove useful.
>
> On Fri Feb 06 2015 at 2:41:50 AM Mohamed Pakkeer <mdfakkeer@xxxxxxxxx
> <mailto:mdfakkeer@xxxxxxxxx>> wrote:
>
> Hi all,
>
> We are building EC cluster with cache tier for CephFS. We are
> planning to use the following 1U chassis along with Intel SSD DC
> S3700 for cache tier. It has 10 * 2.5" slots. Could you recommend a
> suitable Intel processor and amount of RAM to cater 10 * SSDs?.
>
> http://www.supermicro.com/products/system/1U/1028/SYS-1028R-WTRT.cfm
>
>
> Regards
>
> K.Mohamed Pakkeer
>
>
>
> On Fri, Feb 6, 2015 at 2:57 PM, Stephan Seitz
> <s.seitz@xxxxxxxxxxxxxxxxxxx <mailto:s.seitz@heinlein-support.de>>
> wrote:
>
> Hi,
>
> Am Dienstag, den 03.02.2015, 15:16 +0000 schrieb Colombo Marco:
> > Hi all,
> > I have to build a new Ceph storage cluster, after i‘ve read the
> > hardware recommendations and some mail from this mailing list i would
> > like to buy these servers:
>
> just FYI:
>
> SuperMicro already focuses on ceph with a productline:
> http://www.supermicro.com/solutions/datasheet_Ceph.pdf
> http://www.supermicro.com/solutions/storage_ceph.cfm
>
>
>
> regards,
>
>
> Stephan Seitz
>
> --
>
> Heinlein Support GmbH
> Schwedter Str. 8/9b, 10119 Berlin
>
> http://www.heinlein-support.de
>
> Tel: 030 / 405051-44
> Fax: 030 / 405051-19
>
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>
>
> _______________________________________________
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> ceph-users@xxxxxxxxxxxxxx <mailto:ceph-users@xxxxxxxxxx.com>
> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
>
>
>
>
> --
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> K.Mohamed Pakkeer
> Mobile- 0091-8754410114
>
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