Method generateNormalConfig

fdbserver/SimulatedCluster.actor.cpp:1856–1889

Generates and sets an appropriate configuration for the database according to the provided testConfig. Some attributes are randomly generated for more coverage of different combinations

// the provided testConfig. Some attributes are randomly generated for more coverage
// of different combinations
void SimulationConfig::generateNormalConfig(const TestConfig& testConfig) {
	set_config("new");
	// Some of these options will overwrite one another so the ordering is important.
	// This is a bit inefficient but separates the different types of option setting paths for better readability.
	setDatacenters(testConfig);

	// These 3 sets will only change the settings with trivial logic and low coupling with
	// other portions of the configuration. The parameters that are more involved and use
	// complex logic will be found in their respective "set----" methods following after.
	setRandomConfig();
	if (testConfig.simpleConfig) {
		setSimpleConfig();
	}
	setSpecificConfig(testConfig);

	setStorageEngine(testConfig);
	setReplicationType(testConfig);
	if (generateFearless || (datacenters == 2 && deterministicRandom()->random01() < 0.5)) {
		setRegions(testConfig);
	}
	setMachineCount(testConfig);
	setCoordinators(testConfig);

	if (testConfig.minimumReplication > 1 && datacenters == 3) {
		// low latency tests in 3 data hall mode need 2 other data centers with 2 machines each to avoid waiting for
		// logs to recover.
		machine_count = std::max(machine_count, 6);
		coordinators = 3;
	}

	setProcessesPerMachine(testConfig);
	setTss(testConfig);
	setConfigDB(testConfig);
}

// Configures the system according to the given specifications in order to run
// simulation under the correct conditions