Hi, all After reading the RADOS paper, I have some questions about availability of RADOS. Nowhere I can find to discuss, so I'm here. When adding new host to the cluster, some placement group will be mapped to the new one. After the cluster info incremental propagates to all the OSDs and clients, the client write operation will be directed to the PG whose primary is at the new host. Before the new host get the data migration down, it can not service these requests. And due to the limitation of network bandwidth, the data migration may take long. There is a long time that the new host can not service. I got confused. Do I miss something important in this paper? Thank you all Fusheng Han -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
