Adopt the policy load_balancing_algorithm::fixed to instruct seastar
(posix-stack) to allocate connected sockets on the designated core, so
we are not able to move them later in our application, which is not
supported by seastar and result in undefined behaviors.
Seastar requires server_socket to accept/listen on all available cores.
We encapsulate the related implementations in the new
FixedCPUServerSocket, so we can have a simpler shard-local crimson
messenger.
Even though FixedCPUServerSocket is a sharded service, only the service
located on the shard where the socket is originally created will be
serving incoming connections. it's not allowed to perform i/o with that
connected socket on other cores.
projects / ceph.git / commit