Is bond0.111 just for RGW traffic? Is there a load balancer in front of your RGWs?
>From the graph you linked to for bond0.111, it seems like you might just be having a spike in Rados Gateway traffic. You might want to dig into the logs at those times on your Load Balancer/RGWs to see if you can correlate what is generating the traffic. Regards, -Jamie Fargen On Wed, Jun 6, 2018 at 7:57 AM, Grigory Murashov <muras...@voximplant.com> wrote: > Hello cephers! > > I have luminous 12.2.5 cluster of 3 nodes 5 OSDs each with S3 RGW. All > OSDs are HDD. > > I often (about twice a day) have slow request problem which reduces > cluster efficiency. It can be started both in day peak and night time. > Doesn't matter. > > That's what I have in ceph health detail https://avatars.mds.yandex.net > /get-pdb/234183/9ba023d0-4352-4235-8826-76b412016e9f/s1200 > > Top and iostat results on osd.21's node > https://avatars.mds.yandex.net/get-pdb/51720/52ef79c1-eb1a- > 450a-8c95-675077045b84/s1200 > > https://avatars.mds.yandex.net/get-pdb/51720/0d98131c-82d3- > 4274-a406-743490e1f966/s1200 > > In fact in reduces cluster's io operations for about an half an hour twice > a day > https://avatars.mds.yandex.net/get-pdb/222681/bed8f638-f259- > 403e-83cb-c7bfb30f14f1/s1200 > > That's normal io while status is OK > https://avatars.mds.yandex.net/get-pdb/245485/33ee3a53-083a- > 4656-b585-8df0007db2e2/s1200 > > That's how it affects on incoming traffic to RGW > https://avatars.mds.yandex.net/get-pdb/51720/5a486d30-0d44- > 46f0-8f0f-668a05947bc8/s1200 > > Since it starts in any time but twice a day and for fixed period of time I > assume it could be some recovery or rebalancing operations. > > I tried to find smth out in osd logs but there are nothing about it. > > Any thoughts how to avoid it? > > Appreciate your help. > > -- > Grigory Murashov > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -- Jamie Fargen Consultant jfar...@redhat.com 813-817-4430
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