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@xxxxxxxxxxxxxxxxxxx>> 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 Zwangsangaben lt. §35a GmbHG: HRB 93818 B / Amtsgericht Berlin-Charlottenburg, Geschäftsführer: Peer Heinlein -- Sitz: Berlin _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx <mailto:ceph-users@xxxxxxxxxxxxxx> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com -- Thanks & Regards K.Mohamed Pakkeer Mobile- 0091-8754410114 _________________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx <mailto:ceph-users@xxxxxxxxxxxxxx> http://lists.ceph.com/__listinfo.cgi/ceph-users-ceph.__com <http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com> _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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