Status initializeGlobalShardingState(OperationContext* txn,
const ConnectionString& configCS,
bool allowNetworking) {
if (configCS.type() == ConnectionString::INVALID) {
return {ErrorCodes::BadValue, "Unrecognized connection string."};
}
auto network =
executor::makeNetworkInterface("NetworkInterfaceASIO-ShardRegistry",
stdx::make_unique<ShardingNetworkConnectionHook>(),
stdx::make_unique<ShardingEgressMetadataHook>());
auto networkPtr = network.get();
auto shardRegistry(
stdx::make_unique<ShardRegistry>(stdx::make_unique<RemoteCommandTargeterFactoryImpl>(),
makeTaskExecutorPool(std::move(network)),
networkPtr,
makeTaskExecutor(executor::makeNetworkInterface(
"NetworkInterfaceASIO-ShardRegistry-TaskExecutor")),
configCS));
auto catalogManager = makeCatalogManager(getGlobalServiceContext(),
shardRegistry.get(),
HostAndPort(getHostName(), serverGlobalParams.port));
shardRegistry->startup();
grid.init(std::move(catalogManager),
std::move(shardRegistry),
stdx::make_unique<ClusterCursorManager>(getGlobalServiceContext()->getClockSource()));
while (!inShutdown()) {
try {
Status status = grid.catalogManager(txn)->startup(txn, allowNetworking);
uassertStatusOK(status);
if (serverGlobalParams.configsvrMode == CatalogManager::ConfigServerMode::NONE) {
grid.shardRegistry()->reload(txn);
}
return Status::OK();
} catch (const DBException& ex) {
Status status = ex.toStatus();
if (status == ErrorCodes::ReplicaSetNotFound) {
// ReplicaSetNotFound most likely means we've been waiting for the config replica
// set to come up for so long that the ReplicaSetMonitor stopped monitoring the set.
// Rebuild the config shard to force the monitor to resume monitoring the config
// servers.
grid.shardRegistry()->rebuildConfigShard();
}
log() << "Error initializing sharding state, sleeping for 2 seconds and trying again"
<< causedBy(status);
sleepmillis(2000);
continue;
}
}
return Status::OK();
}
Status initializeGlobalShardingState(const ConnectionString& configCS,
uint64_t maxChunkSizeBytes,
std::unique_ptr<ShardFactory> shardFactory,
rpc::ShardingEgressMetadataHookBuilder hookBuilder) {
if (configCS.type() == ConnectionString::INVALID) {
return {ErrorCodes::BadValue, "Unrecognized connection string."};
}
auto network =
executor::makeNetworkInterface("NetworkInterfaceASIO-ShardRegistry",
stdx::make_unique<ShardingNetworkConnectionHook>(),
hookBuilder());
auto networkPtr = network.get();
auto executorPool = makeTaskExecutorPool(std::move(network), hookBuilder());
executorPool->startup();
auto shardRegistry(stdx::make_unique<ShardRegistry>(std::move(shardFactory), configCS));
auto catalogManager = makeCatalogManager(getGlobalServiceContext(),
shardRegistry.get(),
HostAndPort(getHostName(), serverGlobalParams.port));
auto rawCatalogManager = catalogManager.get();
grid.init(
std::move(catalogManager),
stdx::make_unique<CatalogCache>(),
std::move(shardRegistry),
stdx::make_unique<ClusterCursorManager>(getGlobalServiceContext()->getPreciseClockSource()),
stdx::make_unique<BalancerConfiguration>(maxChunkSizeBytes),
std::move(executorPool),
networkPtr);
auto status = rawCatalogManager->startup();
if (!status.isOK()) {
return status;
}
return Status::OK();
}
ForwardingCatalogManager::ForwardingCatalogManager(ServiceContext* service,
const ConnectionString& configCS,
ShardRegistry* shardRegistry,
const std::string& distLockProcessId)
: _actual(makeCatalogManager(service, configCS, shardRegistry, distLockProcessId)) {}