The clients receive up to date versions of the osd map which includes which osds are down. So yes, when an osd is marked down in the cluster the clients know about it. If an osd is unreachable but isn't marked down in the cluster, the result is blocked requests.
On Thu, Jul 27, 2017, 1:21 PM Daniel K <sathackr@xxxxxxxxx> wrote:
Does the client track which OSDs are reachable? How does it behave if some are not reachable?_______________________________________________For example:Cluster network with all OSD hosts on a switch.Public network with OSD hosts split between two switches, failure domain is switch.copies=3 so with a failure of the public switch, 1 copy would be reachable by client. Will the client know that it can't reach the OSDs on the failed switch?Well...thinking through this:The mons communicate on the public network -- correct? So an unreachable public network for some of the OSDs would cause them to be marked down, which then the clients would know about.Correct?
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