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	- Add a set_provider_factory() method to server_state to allow injecting provider factory which will be called when the provider is loaded. Other related changes: - Implement to_string() helper method for id class. - Fix id ostream operator human readable id printing. - Pass victim client_service as an argument to provider::bf_abort() to allow passing victim context to custom provider. - Implement prev() helper method for seqno class. - Make server_state recover_streaming_appliers_if_not_recovered() public. In some recovery scenarios the method must be called outside of server_state internal code paths. - Add storage_service requires_globals() method. The storage service implementation may override this to return false if changing to storage service context does not require store/reset globals. - Change view final() to also require that the view status is not primary for the view to be final. Also change the method name to is_final() to avoid confusion with C++ final identifier. - Fixes to server state handling in disconnecting and disconnected states. - Keep TOI meta data over whole TOI critical section. Co-authored-by: Denis Protivensky <denis.protivensky@galeracluster.com>
		
			
				
	
	
		
			284 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			284 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
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|  * Copyright (C) 2018-2021 Codership Oy <info@codership.com>
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|  *
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|  * This file is part of wsrep-lib.
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|  *
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|  * Wsrep-lib is free software: you can redistribute it and/or modify
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|  * it under the terms of the GNU General Public License as published by
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|  * the Free Software Foundation, either version 2 of the License, or
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|  * (at your option) any later version.
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|  *
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|  * Wsrep-lib is distributed in the hope that it will be useful,
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|  * but WITHOUT ANY WARRANTY; without even the implied warranty of
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|  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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|  * GNU General Public License for more details.
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|  *
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|  * You should have received a copy of the GNU General Public License
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|  * along with wsrep-lib.  If not, see <https://www.gnu.org/licenses/>.
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|  */
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| 
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| #include "client_state_fixture.hpp"
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| 
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| //
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| // Test a succesful 2PC transaction lifecycle
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| //
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| BOOST_FIXTURE_TEST_CASE(transaction_2pc, replicating_client_fixture_2pc)
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| {
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|     cc.start_transaction(wsrep::transaction_id(1));
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|     BOOST_REQUIRE(tc.active());
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|     BOOST_REQUIRE(tc.id() == wsrep::transaction_id(1));
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_executing);
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|     BOOST_REQUIRE(cc.before_prepare() == 0);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_preparing);
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|     BOOST_REQUIRE(tc.ordered());
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|     BOOST_REQUIRE(tc.certified());
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|     BOOST_REQUIRE(tc.ws_meta().gtid().is_undefined() == false);
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|     BOOST_REQUIRE(cc.after_prepare() == 0);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_committing);
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|     BOOST_REQUIRE(cc.before_commit() == 0);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_committing);
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|     BOOST_REQUIRE(cc.ordered_commit() == 0);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_ordered_commit);
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|     BOOST_REQUIRE(cc.after_commit() == 0);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_committed);
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|     BOOST_REQUIRE(cc.after_statement() == 0);
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|     BOOST_REQUIRE(tc.active() == false);
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|     BOOST_REQUIRE(tc.ordered() == false);
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|     BOOST_REQUIRE(tc.certified() == false);
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|     BOOST_REQUIRE(cc.current_error() == wsrep::e_success);
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| }
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| 
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| //
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| // Test a 2PC transaction which gets BF aborted before before_prepare
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| //
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| BOOST_FIXTURE_TEST_CASE(transaction_2pc_bf_before_before_prepare,
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|                         replicating_client_fixture_2pc)
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| {
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|     cc.start_transaction(wsrep::transaction_id(1));
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|     BOOST_REQUIRE(tc.active());
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|     BOOST_REQUIRE(tc.id() == wsrep::transaction_id(1));
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_executing);
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|     wsrep_test::bf_abort_unordered(cc);
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|     BOOST_REQUIRE(cc.before_prepare());
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_abort);
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|     BOOST_REQUIRE(tc.certified() == false);
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|     BOOST_REQUIRE(tc.ordered() == false);
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|     BOOST_REQUIRE(cc.before_rollback() == 0);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_aborting);
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|     BOOST_REQUIRE(cc.after_rollback() == 0);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_aborted);
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|     BOOST_REQUIRE(cc.after_statement());
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|     BOOST_REQUIRE(tc.active() == false);
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|     BOOST_REQUIRE(tc.ordered() == false);
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|     BOOST_REQUIRE(tc.certified() == false);
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|     BOOST_REQUIRE(cc.current_error());
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| }
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| 
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| //
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| // Test a 2PC transaction which gets BF aborted before before_prepare
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| //
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| BOOST_FIXTURE_TEST_CASE(transaction_2pc_bf_before_after_prepare,
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|                         replicating_client_fixture_2pc)
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| {
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|     cc.start_transaction(wsrep::transaction_id(1));
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|     BOOST_REQUIRE(tc.active());
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|     BOOST_REQUIRE(tc.id() == wsrep::transaction_id(1));
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_executing);
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|     BOOST_REQUIRE(cc.before_prepare() == 0);
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|     BOOST_REQUIRE(tc.certified() == true);
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|     BOOST_REQUIRE(tc.ordered() == true);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_preparing);
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|     wsrep_test::bf_abort_ordered(cc);
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|     BOOST_REQUIRE(cc.after_prepare());
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_replay);
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|     BOOST_REQUIRE(cc.will_replay_called() == true);
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|     BOOST_REQUIRE(cc.before_rollback() == 0);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_replay);
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|     BOOST_REQUIRE(cc.after_rollback() == 0);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_replay);
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|     BOOST_REQUIRE(cc.after_statement() == 0);
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|     BOOST_REQUIRE(tc.active() == false);
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|     BOOST_REQUIRE(tc.ordered() == false);
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|     BOOST_REQUIRE(tc.certified() == false);
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|     BOOST_REQUIRE(cc.current_error() == wsrep::e_success);
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| }
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| 
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| //
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| // Test a 2PC transaction which gets BF aborted after_prepare() and
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| // the rollback takes place before entering before_commit().
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| //
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| BOOST_FIXTURE_TEST_CASE(transaction_2pc_bf_after_after_prepare,
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|                         replicating_client_fixture_2pc)
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| {
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|     cc.start_transaction(wsrep::transaction_id(1));
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|     BOOST_REQUIRE(tc.active());
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|     BOOST_REQUIRE(tc.id() == wsrep::transaction_id(1));
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_executing);
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|     BOOST_REQUIRE(cc.before_prepare() == 0);
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|     BOOST_REQUIRE(cc.after_prepare() == 0);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_committing);
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|     wsrep_test::bf_abort_ordered(cc);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_abort);
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|     BOOST_REQUIRE(cc.before_rollback() == 0);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_replay);
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|     BOOST_REQUIRE(cc.will_replay_called() == true);
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|     BOOST_REQUIRE(cc.after_rollback() == 0);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_replay);
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|     BOOST_REQUIRE(cc.after_statement() == 0);
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|     BOOST_REQUIRE(tc.active() == false);
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|     BOOST_REQUIRE(tc.ordered() == false);
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|     BOOST_REQUIRE(tc.certified() == false);
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|     BOOST_REQUIRE(cc.current_error() == wsrep::e_success);
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| }
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| 
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| //
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| // Test a 2PC transaction which gets BF aborted between after_prepare()
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| // and before_commit()
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| //
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| BOOST_FIXTURE_TEST_CASE(transaction_2pc_bf_before_before_commit,
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|                         replicating_client_fixture_2pc)
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| {
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|     cc.start_transaction(wsrep::transaction_id(1));
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|     BOOST_REQUIRE(tc.active());
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|     BOOST_REQUIRE(tc.id() == wsrep::transaction_id(1));
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_executing);
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|     BOOST_REQUIRE(cc.before_prepare() == 0);
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|     BOOST_REQUIRE(cc.after_prepare() == 0);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_committing);
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|     wsrep_test::bf_abort_ordered(cc);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_abort);
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|     BOOST_REQUIRE(cc.before_commit());
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_replay);
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|     BOOST_REQUIRE(cc.will_replay_called() == true);
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|     BOOST_REQUIRE(tc.certified() == true);
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|     BOOST_REQUIRE(tc.ordered() == true);
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|     BOOST_REQUIRE(cc.before_rollback() == 0);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_replay);
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|     BOOST_REQUIRE(cc.after_rollback() == 0);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_replay);
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|     BOOST_REQUIRE(cc.after_statement() == 0);
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|     BOOST_REQUIRE(tc.active() == false);
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|     BOOST_REQUIRE(tc.ordered() == false);
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|     BOOST_REQUIRE(tc.certified() == false);
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|     BOOST_REQUIRE(cc.current_error() == wsrep::e_success);
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| }
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| 
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| //
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| // Test a 2PC transaction which gets BF aborted when trying to grab
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| // commit order.
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| //
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| BOOST_FIXTURE_TEST_CASE(transaction_2pc_bf_during_commit_order_enter,
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|                         replicating_client_fixture_2pc)
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| {
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|     cc.start_transaction(wsrep::transaction_id(1));
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|     BOOST_REQUIRE(tc.active());
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|     BOOST_REQUIRE(tc.id() == wsrep::transaction_id(1));
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_executing);
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|     BOOST_REQUIRE(cc.before_prepare() == 0);
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|     BOOST_REQUIRE(cc.after_prepare() == 0);
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|     sc.provider().commit_order_enter_result_
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|         = wsrep::provider::error_bf_abort;
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|     BOOST_REQUIRE(cc.before_commit());
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_replay);
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|     BOOST_REQUIRE(cc.will_replay_called() == true);
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|     BOOST_REQUIRE(tc.certified() == true);
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|     BOOST_REQUIRE(tc.ordered() == true);
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|     sc.provider().commit_order_enter_result_ = wsrep::provider::success;
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|     BOOST_REQUIRE(cc.before_rollback() == 0);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_replay);
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|     BOOST_REQUIRE(cc.after_rollback() == 0);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_replay);
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|     BOOST_REQUIRE(cc.after_statement() == 0);
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|     BOOST_REQUIRE(tc.active() == false);
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|     BOOST_REQUIRE(tc.ordered() == false);
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|     BOOST_REQUIRE(tc.certified() == false);
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|     BOOST_REQUIRE(cc.current_error() == wsrep::e_success);
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| }
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| 
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| ///////////////////////////////////////////////////////////////////////////////
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| //                       STREAMING REPLICATION                               //
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| ///////////////////////////////////////////////////////////////////////////////
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| 
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| BOOST_FIXTURE_TEST_CASE(transaction_streaming_2pc_commit,
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|                         streaming_client_fixture_row)
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| {
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|     BOOST_REQUIRE(cc.start_transaction(wsrep::transaction_id(1)) == 0);
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|     BOOST_REQUIRE(cc.after_row() == 0);
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|     BOOST_REQUIRE(tc.streaming_context().fragments_certified() == 1);
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|     BOOST_REQUIRE(cc.before_prepare() == 0);
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|     BOOST_REQUIRE(cc.after_prepare() == 0);
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|     BOOST_REQUIRE(cc.before_commit() == 0);
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|     BOOST_REQUIRE(cc.ordered_commit() == 0);
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|     BOOST_REQUIRE(cc.after_commit() == 0);
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|     BOOST_REQUIRE(cc.after_statement() == 0);
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|     BOOST_REQUIRE(sc.provider().fragments() == 2);
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|     BOOST_REQUIRE(sc.provider().start_fragments() == 1);
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|     BOOST_REQUIRE(sc.provider().commit_fragments() == 1);
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| }
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| 
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| BOOST_FIXTURE_TEST_CASE(transaction_streaming_2pc_commit_two_statements,
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|                         streaming_client_fixture_row)
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| {
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|     BOOST_REQUIRE(cc.start_transaction(wsrep::transaction_id(1)) == 0);
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|     BOOST_REQUIRE(cc.after_row() == 0);
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|     BOOST_REQUIRE(tc.streaming_context().fragments_certified() == 1);
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|     BOOST_REQUIRE(cc.after_statement() == 0);
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|     BOOST_REQUIRE(cc.before_statement() == 0);
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|     BOOST_REQUIRE(cc.after_row() == 0);
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|     BOOST_REQUIRE(tc.streaming_context().fragments_certified() == 2);
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|     BOOST_REQUIRE(cc.before_prepare() == 0);
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|     BOOST_REQUIRE(cc.after_prepare() == 0);
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|     BOOST_REQUIRE(cc.before_commit() == 0);
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|     BOOST_REQUIRE(cc.ordered_commit() == 0);
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|     BOOST_REQUIRE(cc.after_commit() == 0);
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|     BOOST_REQUIRE(cc.after_statement() == 0);
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|     BOOST_REQUIRE(sc.provider().fragments() == 3);
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|     BOOST_REQUIRE(sc.provider().start_fragments() == 1);
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|     BOOST_REQUIRE(sc.provider().commit_fragments() == 1);
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| }
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| 
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| //
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| // Fragments are removed in before_prepare in running transaction context.
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| // However, the BF abort may arrive during this removal and the
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| // client_service::remove_fragments() may roll back the transaction
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| // internally. This will cause the transaction to leave before_prepare()
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| // in aborted state.
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| //
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| BOOST_FIXTURE_TEST_CASE(
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|     transaction_streaming_2pc_bf_abort_during_fragment_removal,
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|     streaming_client_fixture_row)
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| {
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|     BOOST_REQUIRE(cc.start_transaction(wsrep::transaction_id(1)) == 0);
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|     BOOST_REQUIRE(cc.after_row() == 0);
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|     BOOST_REQUIRE(tc.streaming_context().fragments_certified() == 1);
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|     cc.bf_abort_during_fragment_removal_ = true;
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|     BOOST_REQUIRE(cc.before_prepare());
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_aborted);
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|     BOOST_REQUIRE(cc.after_statement());
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|     BOOST_REQUIRE(tc.active() == false);
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|     wsrep_test::terminate_streaming_applier(sc, sc.id(),
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|                                             wsrep::transaction_id(1));
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| }
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| 
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| ///////////////////////////////////////////////////////////////////////////////
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| //                              APPLYING                                     //
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| ///////////////////////////////////////////////////////////////////////////////
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| 
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| BOOST_FIXTURE_TEST_CASE(transaction_2pc_applying, applying_client_fixture_2pc)
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| {
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|     BOOST_REQUIRE(cc.before_prepare() == 0);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_preparing);
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|     BOOST_REQUIRE(cc.after_prepare() == 0);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_committing);
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|     BOOST_REQUIRE(cc.before_commit() == 0);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_committing);
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|     BOOST_REQUIRE(cc.ordered_commit() == 0);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_ordered_commit);
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|     BOOST_REQUIRE(cc.after_commit() == 0);
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_committed);
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|     cc.after_applying();
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|     BOOST_REQUIRE(tc.state() == wsrep::transaction::s_committed);
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|     BOOST_REQUIRE(tc.active() == false);
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|     BOOST_REQUIRE(cc.current_error() == wsrep::e_success);
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| }
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