to be more specific: if we have an RBD volume used by a client (a hypervisor, or or mapped with rbd), we assume continuous activity on the volume. How often will the RBD client contact the monitor to get the current map? Are you aware of any documentation page that describes this interaction? Thank you, Laszlo On 7/15/20 8:12 AM, Budai Laszlo wrote: > Hi Nghia, > > in the docs (https://docs.ceph.com/docs/master/architecture/#about-pools) there is the statement "Ceph Clients retrieve a Cluster Map from a Ceph Monitor, and write objects to pools." My question is how often the client is retrieving the Cluster Map? How does the client get the knowledge about a change in the cluster? > > Thank you, > Laszlo > > On 7/15/20 7:57 AM, Nghia Viet Tran wrote: >> Hi Laszlo, >> >> Which client are you talking about? >> >> On 7/15/20, 11:54, "Budai Laszlo" <laszlo.budai@xxxxxxxxx> wrote: >> >> Hello everybody, >> >> I'm trying to figure out how often the ceph client is contacting the monitors for updating its own information about the cluster map. >> Can anyone point me to a document describing this client <-> monitor communication? >> >> Thank you, >> Laszlo >> _______________________________________________ >> ceph-users mailing list -- ceph-users@xxxxxxx >> To unsubscribe send an email to ceph-users-leave@xxxxxxx >> > _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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