Den tors 16 nov. 2023 kl 08:43 skrev Nguyễn Hữu Khôi <nguyenhuukhoinw@xxxxxxxxx>: > > Hello, > Yes, I see it does not exceed RSS but I see in "ceph orch ps". it is over > target. Does Mem Use include cache, I am right? > > NAME HOST PORTS STATUS REFRESHED > AGE MEM USE MEM LIM VERSION IMAGE ID CONTAINER ID > > osd.7 sg-osd01 running (3d) 8m ago > 4w 4231M 4096M 17.2.6 90a2664234e1 922185643cb8 > btw as you said, I feel this value does not have much impact because if we > set 1 or 4GB. It still can consume much memory when they need more memory, Don't forget that the tuneable part is only one type of memory consumption and not ALL parts of the places where and OSD needs ram, so the absolutely mandatory ram consumption is not covered by the settings, only the "optional" part, which goes to caches and other performance improving usages. During recovery and startup and other events, the required usage can and will spike, regardless of your memory usage settings. If recovery suddenly needs 20G, it would not stop recovery because you set the limit to say, max 19G ram, it would try to use 20G to recover, then go back to normal low usage and have as much as possible of the given 19G as caches again. -- May the most significant bit of your life be positive. _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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