Hi, Could you tell me whether read I/O is acxepted when the number of replicas is under pool's min_size?
I read the official document and found that there is a difference of the effect of pool's min_size between pool's document and the pool's configuration document. Pool's document: https://docs.ceph.com/en/latest/rados/operations/pools/ > To set a minimum number of required replicas for I/O, you should use the min_size setting. Pool's configuration document. https://docs.ceph.com/en/latest/rados/configuration/pool-pg-config-ref/ > osd pool default min size Description Sets the minimum number of written replicas for objects in the pool in order to acknowledge a write operation to the client. The former says that min_size is related to both read/write I/O. On the other hands, the latter says it's only about write I/O. So which is correct description? As a result of my verification, the former looks correct. I created a RGW object in a pool having 3 replicas and its min_size is 2. Both read and write aren't accepted when 2 replicas are gone. Thanks, Satoru _______________________________________________ ceph-users mailing list -- [email protected] To unsubscribe send an email to [email protected]
