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* Check fragment removal error code in prepare phase. It is possible that the transaction gets BF aborted during fragment removal. * Mark fragment certified in certify_fragment() even if the provider returns cert failed error. With current wsrep-API error codes it may not be possible to distinquish certification failure and BF abort during fragment replication. This may also be a provider bug. As a result rollback fragment may sometimes be replicated when it would not be necessary.
59 lines
1.5 KiB
C++
59 lines
1.5 KiB
C++
//
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// Copyright (C) 2018 Codership Oy <info@codership.com>
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//
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#ifndef WSREP_DB_CLIENT_SERVICE_HPP
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#define WSREP_DB_CLIENT_SERVICE_HPP
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#include "wsrep/client_service.hpp"
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#include "wsrep/transaction.hpp"
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namespace db
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{
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class client;
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class client_state;
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class client_service : public wsrep::client_service
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{
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public:
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client_service(db::client& client);
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bool do_2pc() const override;
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bool interrupted() const override { return false; }
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void reset_globals() override { }
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void store_globals() override { }
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int prepare_data_for_replication() override
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{
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return 0;
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}
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void cleanup_transaction() override { }
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size_t bytes_generated() const override
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{
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return 0;
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}
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bool statement_allowed_for_streaming() const override
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{
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return true;
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}
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int prepare_fragment_for_replication(wsrep::mutable_buffer&) override
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{
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return 0;
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}
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int remove_fragments() override { return 0; }
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int bf_rollback() override;
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void will_replay() override { }
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void wait_for_replayers(wsrep::unique_lock<wsrep::mutex>&) override { }
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enum wsrep::provider::status replay()
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override;
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void emergency_shutdown() { ::abort(); }
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void debug_sync(const char*) override { }
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void debug_crash(const char*) override { }
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private:
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db::client& client_;
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wsrep::client_state& client_state_;
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};
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}
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#endif // WSREP_DB_CLIENT_SERVICE_HPP
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