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Currently we are using the MemoryCurrent property of the OSD service to determine the used memory of a Ceph OSD. This includes, among other things, the memory used by buffers [1]. Since BlueFS uses buffered I/O, this can lead to extremely high values shown in the UI. Instead we are now reading the PSS value from the proc filesystem, which should more accurately reflect the amount of memory currently used by the Ceph OSD. Aaron and I decided on PSS over RSS, since this should give a better idea of used memory - particularly when using a large amount of OSDs on one host, since the OSDs share some of the pages. [1] https://www.kernel.org/doc/Documentation/cgroup-v1/memory.txt Signed-off-by: Stefan Hanreich <s.hanreich@proxmox.com> Tested-by: Aaron Lauterer <a.lauterer@proxmox.com> |
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| .. | ||
| Ceph | ||
| Cluster | ||
| Hardware | ||
| ACME.pm | ||
| ACMEAccount.pm | ||
| ACMEPlugin.pm | ||
| APT.pm | ||
| Backup.pm | ||
| Capabilities.pm | ||
| Ceph.pm | ||
| Certificates.pm | ||
| Cluster.pm | ||
| HAConfig.pm | ||
| Hardware.pm | ||
| Makefile | ||
| Network.pm | ||
| NodeConfig.pm | ||
| Nodes.pm | ||
| Pool.pm | ||
| Replication.pm | ||
| ReplicationConfig.pm | ||
| Services.pm | ||
| Subscription.pm | ||
| Tasks.pm | ||
| VZDump.pm | ||