53c405c699
Summary: This diff changes the RPC layer to directly return `TResponse` to the user when issuing a `Call<...>` RPC call. The call throws an exception on failure (instead of the previous return `nullopt`). All servers (network, RPC and distributed) are set to have explicit `Shutdown` methods so that a controlled shutdown can always be performed. The object destructors now have `CHECK`s to enforce that the `AwaitShutdown` methods were called. The distributed memgraph is changed that none of the binaries (master/workers) crash when there is a communication failure. Instead, the whole cluster starts a graceful shutdown when a persistent communication error is detected. Transient errors are allowed during execution. The transaction that errored out will be aborted on the whole cluster. The cluster state is managed using a new Heartbeat RPC call. Reviewers: buda, teon.banek, msantl Reviewed By: teon.banek Subscribers: pullbot Differential Revision: https://phabricator.memgraph.io/D1604
33 lines
963 B
C++
33 lines
963 B
C++
#include <distributed/plan_dispatcher.hpp>
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namespace distributed {
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PlanDispatcher::PlanDispatcher(Coordination *coordination) : coordination_(coordination) {}
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void PlanDispatcher::DispatchPlan(
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int64_t plan_id, std::shared_ptr<query::plan::LogicalOperator> plan,
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const query::SymbolTable &symbol_table) {
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auto futures = coordination_->ExecuteOnWorkers<void>(
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0, [plan_id, plan, symbol_table](
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int worker_id, communication::rpc::ClientPool &client_pool) {
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client_pool.Call<DispatchPlanRpc>(plan_id, plan, symbol_table);
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});
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for (auto &future : futures) {
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future.get();
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}
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}
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void PlanDispatcher::RemovePlan(int64_t plan_id) {
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auto futures = coordination_->ExecuteOnWorkers<void>(
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0, [plan_id](int worker_id, communication::rpc::ClientPool &client_pool) {
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client_pool.Call<RemovePlanRpc>(plan_id);
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});
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for (auto &future : futures) {
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future.get();
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}
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}
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} // namespace distributed
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