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wsrep-lib/test/transaction_test_2pc.cpp
Teemu Ollakka 5ea78de6c2 Add support for custom provider implementation 
- 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>
2025-01-14 16:51:26 +02:00

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/*
* Copyright (C) 2018-2021 Codership Oy <info@codership.com>
*
* This file is part of wsrep-lib.
*
* Wsrep-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* Wsrep-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with wsrep-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#include "client_state_fixture.hpp"
//
// Test a succesful 2PC transaction lifecycle
//
BOOST_FIXTURE_TEST_CASE(transaction_2pc, replicating_client_fixture_2pc)
{
cc.start_transaction(wsrep::transaction_id(1));
BOOST_REQUIRE(tc.active());
BOOST_REQUIRE(tc.id() == wsrep::transaction_id(1));
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_executing);
BOOST_REQUIRE(cc.before_prepare() == 0);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_preparing);
BOOST_REQUIRE(tc.ordered());
BOOST_REQUIRE(tc.certified());
BOOST_REQUIRE(tc.ws_meta().gtid().is_undefined() == false);
BOOST_REQUIRE(cc.after_prepare() == 0);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_committing);
BOOST_REQUIRE(cc.before_commit() == 0);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_committing);
BOOST_REQUIRE(cc.ordered_commit() == 0);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_ordered_commit);
BOOST_REQUIRE(cc.after_commit() == 0);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_committed);
BOOST_REQUIRE(cc.after_statement() == 0);
BOOST_REQUIRE(tc.active() == false);
BOOST_REQUIRE(tc.ordered() == false);
BOOST_REQUIRE(tc.certified() == false);
BOOST_REQUIRE(cc.current_error() == wsrep::e_success);
}
//
// Test a 2PC transaction which gets BF aborted before before_prepare
//
BOOST_FIXTURE_TEST_CASE(transaction_2pc_bf_before_before_prepare,
replicating_client_fixture_2pc)
{
cc.start_transaction(wsrep::transaction_id(1));
BOOST_REQUIRE(tc.active());
BOOST_REQUIRE(tc.id() == wsrep::transaction_id(1));
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_executing);
wsrep_test::bf_abort_unordered(cc);
BOOST_REQUIRE(cc.before_prepare());
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_abort);
BOOST_REQUIRE(tc.certified() == false);
BOOST_REQUIRE(tc.ordered() == false);
BOOST_REQUIRE(cc.before_rollback() == 0);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_aborting);
BOOST_REQUIRE(cc.after_rollback() == 0);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_aborted);
BOOST_REQUIRE(cc.after_statement());
BOOST_REQUIRE(tc.active() == false);
BOOST_REQUIRE(tc.ordered() == false);
BOOST_REQUIRE(tc.certified() == false);
BOOST_REQUIRE(cc.current_error());
}
//
// Test a 2PC transaction which gets BF aborted before before_prepare
//
BOOST_FIXTURE_TEST_CASE(transaction_2pc_bf_before_after_prepare,
replicating_client_fixture_2pc)
{
cc.start_transaction(wsrep::transaction_id(1));
BOOST_REQUIRE(tc.active());
BOOST_REQUIRE(tc.id() == wsrep::transaction_id(1));
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_executing);
BOOST_REQUIRE(cc.before_prepare() == 0);
BOOST_REQUIRE(tc.certified() == true);
BOOST_REQUIRE(tc.ordered() == true);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_preparing);
wsrep_test::bf_abort_ordered(cc);
BOOST_REQUIRE(cc.after_prepare());
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_replay);
BOOST_REQUIRE(cc.will_replay_called() == true);
BOOST_REQUIRE(cc.before_rollback() == 0);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_replay);
BOOST_REQUIRE(cc.after_rollback() == 0);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_replay);
BOOST_REQUIRE(cc.after_statement() == 0);
BOOST_REQUIRE(tc.active() == false);
BOOST_REQUIRE(tc.ordered() == false);
BOOST_REQUIRE(tc.certified() == false);
BOOST_REQUIRE(cc.current_error() == wsrep::e_success);
}
//
// Test a 2PC transaction which gets BF aborted after_prepare() and
// the rollback takes place before entering before_commit().
//
BOOST_FIXTURE_TEST_CASE(transaction_2pc_bf_after_after_prepare,
replicating_client_fixture_2pc)
{
cc.start_transaction(wsrep::transaction_id(1));
BOOST_REQUIRE(tc.active());
BOOST_REQUIRE(tc.id() == wsrep::transaction_id(1));
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_executing);
BOOST_REQUIRE(cc.before_prepare() == 0);
BOOST_REQUIRE(cc.after_prepare() == 0);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_committing);
wsrep_test::bf_abort_ordered(cc);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_abort);
BOOST_REQUIRE(cc.before_rollback() == 0);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_replay);
BOOST_REQUIRE(cc.will_replay_called() == true);
BOOST_REQUIRE(cc.after_rollback() == 0);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_replay);
BOOST_REQUIRE(cc.after_statement() == 0);
BOOST_REQUIRE(tc.active() == false);
BOOST_REQUIRE(tc.ordered() == false);
BOOST_REQUIRE(tc.certified() == false);
BOOST_REQUIRE(cc.current_error() == wsrep::e_success);
}
//
// Test a 2PC transaction which gets BF aborted between after_prepare()
// and before_commit()
//
BOOST_FIXTURE_TEST_CASE(transaction_2pc_bf_before_before_commit,
replicating_client_fixture_2pc)
{
cc.start_transaction(wsrep::transaction_id(1));
BOOST_REQUIRE(tc.active());
BOOST_REQUIRE(tc.id() == wsrep::transaction_id(1));
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_executing);
BOOST_REQUIRE(cc.before_prepare() == 0);
BOOST_REQUIRE(cc.after_prepare() == 0);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_committing);
wsrep_test::bf_abort_ordered(cc);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_abort);
BOOST_REQUIRE(cc.before_commit());
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_replay);
BOOST_REQUIRE(cc.will_replay_called() == true);
BOOST_REQUIRE(tc.certified() == true);
BOOST_REQUIRE(tc.ordered() == true);
BOOST_REQUIRE(cc.before_rollback() == 0);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_replay);
BOOST_REQUIRE(cc.after_rollback() == 0);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_replay);
BOOST_REQUIRE(cc.after_statement() == 0);
BOOST_REQUIRE(tc.active() == false);
BOOST_REQUIRE(tc.ordered() == false);
BOOST_REQUIRE(tc.certified() == false);
BOOST_REQUIRE(cc.current_error() == wsrep::e_success);
}
//
// Test a 2PC transaction which gets BF aborted when trying to grab
// commit order.
//
BOOST_FIXTURE_TEST_CASE(transaction_2pc_bf_during_commit_order_enter,
replicating_client_fixture_2pc)
{
cc.start_transaction(wsrep::transaction_id(1));
BOOST_REQUIRE(tc.active());
BOOST_REQUIRE(tc.id() == wsrep::transaction_id(1));
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_executing);
BOOST_REQUIRE(cc.before_prepare() == 0);
BOOST_REQUIRE(cc.after_prepare() == 0);
sc.provider().commit_order_enter_result_
= wsrep::provider::error_bf_abort;
BOOST_REQUIRE(cc.before_commit());
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_replay);
BOOST_REQUIRE(cc.will_replay_called() == true);
BOOST_REQUIRE(tc.certified() == true);
BOOST_REQUIRE(tc.ordered() == true);
sc.provider().commit_order_enter_result_ = wsrep::provider::success;
BOOST_REQUIRE(cc.before_rollback() == 0);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_replay);
BOOST_REQUIRE(cc.after_rollback() == 0);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_must_replay);
BOOST_REQUIRE(cc.after_statement() == 0);
BOOST_REQUIRE(tc.active() == false);
BOOST_REQUIRE(tc.ordered() == false);
BOOST_REQUIRE(tc.certified() == false);
BOOST_REQUIRE(cc.current_error() == wsrep::e_success);
}
///////////////////////////////////////////////////////////////////////////////
// STREAMING REPLICATION //
///////////////////////////////////////////////////////////////////////////////
BOOST_FIXTURE_TEST_CASE(transaction_streaming_2pc_commit,
streaming_client_fixture_row)
{
BOOST_REQUIRE(cc.start_transaction(wsrep::transaction_id(1)) == 0);
BOOST_REQUIRE(cc.after_row() == 0);
BOOST_REQUIRE(tc.streaming_context().fragments_certified() == 1);
BOOST_REQUIRE(cc.before_prepare() == 0);
BOOST_REQUIRE(cc.after_prepare() == 0);
BOOST_REQUIRE(cc.before_commit() == 0);
BOOST_REQUIRE(cc.ordered_commit() == 0);
BOOST_REQUIRE(cc.after_commit() == 0);
BOOST_REQUIRE(cc.after_statement() == 0);
BOOST_REQUIRE(sc.provider().fragments() == 2);
BOOST_REQUIRE(sc.provider().start_fragments() == 1);
BOOST_REQUIRE(sc.provider().commit_fragments() == 1);
}
BOOST_FIXTURE_TEST_CASE(transaction_streaming_2pc_commit_two_statements,
streaming_client_fixture_row)
{
BOOST_REQUIRE(cc.start_transaction(wsrep::transaction_id(1)) == 0);
BOOST_REQUIRE(cc.after_row() == 0);
BOOST_REQUIRE(tc.streaming_context().fragments_certified() == 1);
BOOST_REQUIRE(cc.after_statement() == 0);
BOOST_REQUIRE(cc.before_statement() == 0);
BOOST_REQUIRE(cc.after_row() == 0);
BOOST_REQUIRE(tc.streaming_context().fragments_certified() == 2);
BOOST_REQUIRE(cc.before_prepare() == 0);
BOOST_REQUIRE(cc.after_prepare() == 0);
BOOST_REQUIRE(cc.before_commit() == 0);
BOOST_REQUIRE(cc.ordered_commit() == 0);
BOOST_REQUIRE(cc.after_commit() == 0);
BOOST_REQUIRE(cc.after_statement() == 0);
BOOST_REQUIRE(sc.provider().fragments() == 3);
BOOST_REQUIRE(sc.provider().start_fragments() == 1);
BOOST_REQUIRE(sc.provider().commit_fragments() == 1);
}
//
// Fragments are removed in before_prepare in running transaction context.
// However, the BF abort may arrive during this removal and the
// client_service::remove_fragments() may roll back the transaction
// internally. This will cause the transaction to leave before_prepare()
// in aborted state.
//
BOOST_FIXTURE_TEST_CASE(
transaction_streaming_2pc_bf_abort_during_fragment_removal,
streaming_client_fixture_row)
{
BOOST_REQUIRE(cc.start_transaction(wsrep::transaction_id(1)) == 0);
BOOST_REQUIRE(cc.after_row() == 0);
BOOST_REQUIRE(tc.streaming_context().fragments_certified() == 1);
cc.bf_abort_during_fragment_removal_ = true;
BOOST_REQUIRE(cc.before_prepare());
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_aborted);
BOOST_REQUIRE(cc.after_statement());
BOOST_REQUIRE(tc.active() == false);
wsrep_test::terminate_streaming_applier(sc, sc.id(),
wsrep::transaction_id(1));
}
///////////////////////////////////////////////////////////////////////////////
// APPLYING //
///////////////////////////////////////////////////////////////////////////////
BOOST_FIXTURE_TEST_CASE(transaction_2pc_applying, applying_client_fixture_2pc)
{
BOOST_REQUIRE(cc.before_prepare() == 0);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_preparing);
BOOST_REQUIRE(cc.after_prepare() == 0);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_committing);
BOOST_REQUIRE(cc.before_commit() == 0);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_committing);
BOOST_REQUIRE(cc.ordered_commit() == 0);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_ordered_commit);
BOOST_REQUIRE(cc.after_commit() == 0);
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_committed);
cc.after_applying();
BOOST_REQUIRE(tc.state() == wsrep::transaction::s_committed);
BOOST_REQUIRE(tc.active() == false);
BOOST_REQUIRE(cc.current_error() == wsrep::e_success);
}
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