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/**
* Copyright (C) 2020-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include <memory>
#include "mongo/db/client.h"
#include "mongo/db/dbdirectclient.h"
#include "mongo/db/op_observer_impl.h"
#include "mongo/db/op_observer_registry.h"
#include "mongo/db/repl/oplog.h"
#include "mongo/db/repl/primary_only_service.h"
#include "mongo/db/repl/primary_only_service_op_observer.h"
#include "mongo/db/repl/replication_coordinator_mock.h"
#include "mongo/db/repl/tenant_migration_recipient_service.h"
#include "mongo/db/repl/tenant_migration_state_machine_gen.h"
#include "mongo/db/repl/wait_for_majority_service.h"
#include "mongo/db/service_context_d_test_fixture.h"
#include "mongo/executor/network_interface.h"
#include "mongo/executor/network_interface_factory.h"
#include "mongo/executor/thread_pool_task_executor.h"
#include "mongo/rpc/metadata/egress_metadata_hook_list.h"
#include "mongo/unittest/unittest.h"
#include "mongo/util/concurrency/thread_pool.h"
#include "mongo/util/fail_point.h"
#include "mongo/util/future.h"
using namespace mongo;
using namespace mongo::repl;
class TenantMigrationRecipientServiceTest : public ServiceContextMongoDTest {
public:
void setUp() override {
ServiceContextMongoDTest::setUp();
auto serviceContext = getServiceContext();
WaitForMajorityService::get(getServiceContext()).setUp(getServiceContext());
{
auto opCtx = cc().makeOperationContext();
auto replCoord = std::make_unique<ReplicationCoordinatorMock>(serviceContext);
ReplicationCoordinator::set(serviceContext, std::move(replCoord));
repl::setOplogCollectionName(serviceContext);
repl::createOplog(opCtx.get());
// Set up OpObserver so that repl::logOp() will store the oplog entry's optime in
// ReplClientInfo.
OpObserverRegistry* opObserverRegistry =
dynamic_cast<OpObserverRegistry*>(serviceContext->getOpObserver());
opObserverRegistry->addObserver(std::make_unique<OpObserverImpl>());
opObserverRegistry->addObserver(
std::make_unique<PrimaryOnlyServiceOpObserver>(serviceContext));
_registry = repl::PrimaryOnlyServiceRegistry::get(getServiceContext());
std::unique_ptr<TenantMigrationRecipientService> service =
std::make_unique<TenantMigrationRecipientService>(getServiceContext());
_registry->registerService(std::move(service));
_registry->onStartup(opCtx.get());
}
stepUp();
_service = _registry->lookupServiceByName(
TenantMigrationRecipientService::kTenantMigrationRecipientServiceName);
ASSERT(_service);
}
void tearDown() override {
WaitForMajorityService::get(getServiceContext()).shutDown();
_registry->onShutdown();
_service = nullptr;
ServiceContextMongoDTest::tearDown();
}
void stepDown() {
ASSERT_OK(ReplicationCoordinator::get(getServiceContext())
->setFollowerMode(MemberState::RS_SECONDARY));
_registry->onStepDown();
}
void stepUp() {
auto opCtx = cc().makeOperationContext();
auto replCoord = ReplicationCoordinator::get(getServiceContext());
// Advance term
_term++;
ASSERT_OK(replCoord->setFollowerMode(MemberState::RS_PRIMARY));
ASSERT_OK(replCoord->updateTerm(opCtx.get(), _term));
replCoord->setMyLastAppliedOpTimeAndWallTime(
OpTimeAndWallTime(OpTime(Timestamp(1, 1), _term), Date_t()));
_registry->onStepUpComplete(opCtx.get(), _term);
}
protected:
PrimaryOnlyServiceRegistry* _registry;
PrimaryOnlyService* _service;
long long _term = 0;
};
TEST_F(TenantMigrationRecipientServiceTest, BasicTenantMigrationRecipientServiceInstanceCreation) {
const UUID migrationUUID = UUID::gen();
TenantMigrationRecipientDocument TenantMigrationRecipientInstance(
migrationUUID,
"DonorHost:12345",
"tenantA",
ReadPreferenceSetting(ReadPreference::PrimaryOnly, TagSet::primaryOnly()));
// Create and start the instance.
auto instance = TenantMigrationRecipientService::Instance::getOrCreate(
_service, TenantMigrationRecipientInstance.toBSON());
ASSERT(instance.get());
ASSERT_EQ(migrationUUID, instance->getMigrationUUID());
// Wait for task completion success.
ASSERT_OK(instance->getCompletionFuture().getNoThrow());
}
TEST_F(TenantMigrationRecipientServiceTest, InstanceReportsErrorOnFailureWhilePersisitingStateDoc) {
FailPointEnableBlock failPoint("failWhilePersistingTenantMigrationRecipientInstanceStateDoc");
const UUID migrationUUID = UUID::gen();
TenantMigrationRecipientDocument TenantMigrationRecipientInstance(
migrationUUID,
"DonorHost:12345",
"tenantA",
ReadPreferenceSetting(ReadPreference::PrimaryOnly, TagSet::primaryOnly()));
// Create and start the instance.
auto instance = TenantMigrationRecipientService::Instance::getOrCreate(
_service, TenantMigrationRecipientInstance.toBSON());
ASSERT(instance.get());
ASSERT_EQ(migrationUUID, instance->getMigrationUUID());
// Should be able to see the instance task failure error.
auto status = instance->getCompletionFuture().getNoThrow();
ASSERT_EQ(ErrorCodes::NotWritablePrimary, status.code());
}
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