void meta_server_failure_detector::sync_node_state_and_start_service()
{
/*
* we do need the failure_detector::_lock to protect,
* because we want to keep the states of server_state::_nodes
* and _cache_alive_nodes consistent
*/
zauto_lock l(failure_detector::_lock);
//first add new nodes to the server_state
_state->apply_cache_nodes();
//then we register all workers from server_state
node_states alive_list;
_state->get_node_state(alive_list);
for(auto& node_pair: alive_list) {
dassert(node_pair.second, "in initializing we don't add dead nodes to server_state");
// a worker may have been dead in the fd, so we must reactive it
unregister_worker(node_pair.first);
register_worker(node_pair.first, true);
}
//now nodes in server_state and in fd are in consistent state
_svc->start_load_balance();
}
void meta_server_failure_detector::sync_node_state_and_start_service()
{
/*
* we do need the failure_detector::_lock to protect,
* because we want to keep the states of server_state::_nodes
* and meta_service::{alive_set,dead_set} consistent
*/
zauto_lock l(failure_detector::_lock);
std::set<rpc_address> nodes;
_svc->prepare_service_starting();
_svc->get_node_state(nodes, true);
for(auto& node: nodes) {
// a worker may have been dead in the fd, so we must reactive it
unregister_worker(node);
register_worker(node, true);
}
//now nodes in server_state and in fd are in consistent state
_svc->service_starting();
}
