diff options
Diffstat (limited to 'src/cpp/server/server_cc.cc')
-rw-r--r-- | src/cpp/server/server_cc.cc | 31 |
1 files changed, 25 insertions, 6 deletions
diff --git a/src/cpp/server/server_cc.cc b/src/cpp/server/server_cc.cc index 0d77510e29..472c5035fc 100644 --- a/src/cpp/server/server_cc.cc +++ b/src/cpp/server/server_cc.cc @@ -47,6 +47,12 @@ namespace grpc { namespace { +// The default value for maximum number of threads that can be created in the +// sync server. This value of 500 is empirically chosen. To increase the max +// number of threads in a sync server, pass a custom ResourceQuota object (with +// the desired number of max-threads set) to the server builder +#define DEFAULT_MAX_SYNC_SERVER_THREADS 500 + class DefaultGlobalCallbacks final : public Server::GlobalCallbacks { public: ~DefaultGlobalCallbacks() override {} @@ -266,9 +272,9 @@ class Server::SyncRequestThreadManager : public ThreadManager { public: SyncRequestThreadManager(Server* server, CompletionQueue* server_cq, std::shared_ptr<GlobalCallbacks> global_callbacks, - int min_pollers, int max_pollers, - int cq_timeout_msec) - : ThreadManager(min_pollers, max_pollers), + grpc_resource_quota* rq, int min_pollers, + int max_pollers, int cq_timeout_msec) + : ThreadManager("SyncServer", rq, min_pollers, max_pollers), server_(server), server_cq_(server_cq), cq_timeout_msec_(cq_timeout_msec), @@ -376,7 +382,8 @@ Server::Server( int max_receive_message_size, ChannelArguments* args, std::shared_ptr<std::vector<std::unique_ptr<ServerCompletionQueue>>> sync_server_cqs, - int min_pollers, int max_pollers, int sync_cq_timeout_msec) + grpc_resource_quota* server_rq, int min_pollers, int max_pollers, + int sync_cq_timeout_msec) : max_receive_message_size_(max_receive_message_size), sync_server_cqs_(std::move(sync_server_cqs)), started_(false), @@ -392,10 +399,22 @@ Server::Server( global_callbacks_->UpdateArguments(args); if (sync_server_cqs_ != nullptr) { + bool default_rq_created = false; + if (server_rq == nullptr) { + server_rq = grpc_resource_quota_create("SyncServer-default-rq"); + grpc_resource_quota_set_max_threads(server_rq, + DEFAULT_MAX_SYNC_SERVER_THREADS); + default_rq_created = true; + } + for (const auto& it : *sync_server_cqs_) { sync_req_mgrs_.emplace_back(new SyncRequestThreadManager( - this, it.get(), global_callbacks_, min_pollers, max_pollers, - sync_cq_timeout_msec)); + this, it.get(), global_callbacks_, server_rq, min_pollers, + max_pollers, sync_cq_timeout_msec)); + } + + if (default_rq_created) { + grpc_resource_quota_unref(server_rq); } } |