"
LWT is much more efficient if a request is processed on a shard that owns
a token for the request. This is because otherwise the processing will
bounce to an owning shard multiple times. The patch proposes a way to
move request to correct shard before running lwt. It works by returning
an error from lwt code if a shard is incorrect one specifying the shard
the request should be moved to. The error is processed by the transport
code that jumps to a correct shard and re-process incoming message there.
"
* 'gleb/bounce_lwt_request' of github.com:scylladb/seastar-dev:
lwt: take raw lock for entire cas duration
lwt: drop invoke_on in paxos_state prepare and accept
lwt: Process lwt request on a owning shard
storage_service: move start_native_transport into a thread
transport: change make_result to takes a reference to cql result instead of shared_ptr
64cade15cc