You can set osd_memory_target to a lower value like 2-2.5GB. Depending on the version of Ceph you are using.
On Fri, Aug 30, 2019, 10:21 AM Sylvain PORTIER <cab...@free.fr> wrote: > Hi, > > On my ceph osd servers I have lot of "out of memory messages". > > My servers are configured with : > > - 32 G of memory > > - 11 HDD (3,5 T each) (+ 2 HDD for the system) > > And the error messages are : > > *[101292.017968] Out of memory: Kill process 2597 (ceph-osd) score 102 or > sacrifice child* > *[101292.018836] Killed process 2597 (ceph-osd) total-vm:5048008kB, > anon-rss:3002648kB, file-rss:0kB, shmem-rss:0kB* > > Top result : > > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ > COMMAND > 75469 ceph 20 0 4982324 3,988g 0 S 0,7 12,7 3:45.05 > ceph-osd > 75499 ceph 20 0 5095896 3,710g 0 S 0,3 11,8 4:08.93 > ceph-osd > 65848 ceph 20 0 5713748 3,329g 0 S 0,0 10,6 68:49.12 > ceph-osd > 67237 ceph 20 0 5580720 3,155g 0 S 0,0 10,1 57:15.99 > ceph-osd > 71113 ceph 20 0 5557608 3,101g 0 S 0,3 9,9 36:47.69 > ceph-osd > 74745 ceph 20 0 5117212 3,062g 0 S 3,7 9,8 8:13.56 > ceph-osd > 72494 ceph 20 0 5621156 2,828g 0 S 0,3 9,0 27:19.97 > ceph-osd > 70954 ceph 20 0 5765016 2,571g 0 S 0,3 8,2 40:02.00 > ceph-osd > 74817 ceph 20 0 5139328 2,510g 0 S 0,3 8,0 7:24.33 > ceph-osd > 76523 ceph 20 0 3324820 2,422g 0 S 0,3 7,7 0:55.54 > ceph-osd > > Is there a way to limit or reduce the memory usage of each osd deamon ? > > Thank you, > > Regards, > Sylvain PORTIER. > > > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> > Garanti > sans virus. www.avast.com > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> > <#m_1194716995885891668_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > _______________________________________________ > ceph-users mailing list -- ceph-users@ceph.io > To unsubscribe send an email to ceph-users-le...@ceph.io >
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