Status storeMongosOptions(const moe::Environment& params,
const std::vector<std::string>& args) {
Status ret = storeServerOptions(params, args);
if (!ret.isOK()) {
return ret;
}
if ( params.count( "chunkSize" ) ) {
int csize = params["chunkSize"].as<int>();
// validate chunksize before proceeding
if ( csize == 0 ) {
return Status(ErrorCodes::BadValue, "error: need a non-zero chunksize");
}
if ( !Chunk::setMaxChunkSizeSizeMB( csize ) ) {
return Status(ErrorCodes::BadValue, "MaxChunkSize invalid");
}
}
if (params.count( "port" ) ) {
int port = params["port"].as<int>();
if ( port <= 0 || port > 65535 ) {
return Status(ErrorCodes::BadValue,
"error: port number must be between 1 and 65535");
}
}
if ( params.count( "localThreshold" ) ) {
serverGlobalParams.defaultLocalThresholdMillis = params["localThreshold"].as<int>();
}
if ( params.count( "ipv6" ) ) {
enableIPv6();
}
if ( params.count( "jsonp" ) ) {
serverGlobalParams.jsonp = true;
}
if (params.count("noscripting")) {
// This option currently has no effect for mongos
}
if (params.count("httpinterface")) {
if (params.count("nohttpinterface")) {
return Status(ErrorCodes::BadValue,
"can't have both --httpinterface and --nohttpinterface");
}
serverGlobalParams.isHttpInterfaceEnabled = true;
}
if (params.count("noAutoSplit")) {
warning() << "running with auto-splitting disabled" << endl;
Chunk::ShouldAutoSplit = false;
}
if ( ! params.count( "configdb" ) ) {
return Status(ErrorCodes::BadValue, "error: no args for --configdb");
}
splitStringDelim(params["configdb"].as<std::string>(), &mongosGlobalParams.configdbs, ',');
if (mongosGlobalParams.configdbs.size() != 1 && mongosGlobalParams.configdbs.size() != 3) {
return Status(ErrorCodes::BadValue, "need either 1 or 3 configdbs");
}
if (mongosGlobalParams.configdbs.size() == 1) {
warning() << "running with 1 config server should be done only for testing purposes "
<< "and is not recommended for production" << endl;
}
mongosGlobalParams.upgrade = params.count("upgrade");
return Status::OK();
}
Status storeMongosOptions(const moe::Environment& params, const std::vector<std::string>& args) {
Status ret = storeServerOptions(params, args);
if (!ret.isOK()) {
return ret;
}
if (params.count("sharding.chunkSize")) {
const int maxChunkSizeMB = params["sharding.chunkSize"].as<int>();
if (maxChunkSizeMB <= 0) {
return Status(ErrorCodes::BadValue, "error: need a positive chunksize");
}
const uint64_t maxChunkSizeBytes = maxChunkSizeMB * 1024 * 1024;
if (!ChunkSizeSettingsType::checkMaxChunkSizeValid(maxChunkSizeBytes)) {
return Status(ErrorCodes::BadValue, "MaxChunkSize invalid");
}
mongosGlobalParams.maxChunkSizeBytes = maxChunkSizeBytes;
}
if (params.count("net.port")) {
int port = params["net.port"].as<int>();
if (port <= 0 || port > 65535) {
return Status(ErrorCodes::BadValue, "error: port number must be between 1 and 65535");
}
}
if (params.count("replication.localPingThresholdMs")) {
serverGlobalParams.defaultLocalThresholdMillis =
params["replication.localPingThresholdMs"].as<int>();
}
if (params.count("net.http.JSONPEnabled")) {
serverGlobalParams.jsonp = params["net.http.JSONPEnabled"].as<bool>();
}
if (params.count("noscripting")) {
// This option currently has no effect for mongos
}
if (params.count("sharding.autoSplit")) {
mongosGlobalParams.shouldAutoSplit = params["sharding.autoSplit"].as<bool>();
if (!mongosGlobalParams.shouldAutoSplit) {
warning() << "running with auto-splitting disabled";
}
}
if (!params.count("sharding.configDB")) {
return Status(ErrorCodes::BadValue, "error: no args for --configdb");
}
std::string configdbString = params["sharding.configDB"].as<std::string>();
auto configdbConnectionString = ConnectionString::parse(configdbString);
if (!configdbConnectionString.isOK()) {
return configdbConnectionString.getStatus();
}
if (configdbConnectionString.getValue().type() != ConnectionString::SET) {
return Status(ErrorCodes::BadValue,
str::stream() << "configdb supports only replica set connection string");
}
std::vector<HostAndPort> seedServers;
for (const auto& host : configdbConnectionString.getValue().getServers()) {
seedServers.push_back(host);
if (!seedServers.back().hasPort()) {
seedServers.back() = HostAndPort{host.host(), ServerGlobalParams::ConfigServerPort};
}
}
mongosGlobalParams.configdbs =
ConnectionString{configdbConnectionString.getValue().type(),
seedServers,
configdbConnectionString.getValue().getSetName()};
if (mongosGlobalParams.configdbs.getServers().size() < 3) {
warning() << "Running a sharded cluster with fewer than 3 config servers should only be "
"done for testing purposes and is not recommended for production.";
}
return Status::OK();
}
Status storeMongosOptions(const moe::Environment& params) {
Status ret = storeServerOptions(params);
if (!ret.isOK()) {
return ret;
}
if (params.count("net.port")) {
int port = params["net.port"].as<int>();
if (port <= 0 || port > 65535) {
return Status(ErrorCodes::BadValue, "error: port number must be between 1 and 65535");
}
}
if (params.count("noscripting") || params.count("security.javascriptEnabled")) {
warning() << "The Javascript enabled/disabled options are not supported for mongos. "
"(\"noscripting\" and/or \"security.javascriptEnabled\" are set.)";
}
if (!params.count("sharding.configDB")) {
return Status(ErrorCodes::BadValue, "error: no args for --configdb");
}
std::string configdbString = params["sharding.configDB"].as<std::string>();
auto configdbConnectionString = ConnectionString::parse(configdbString);
if (!configdbConnectionString.isOK()) {
return configdbConnectionString.getStatus();
}
if (configdbConnectionString.getValue().type() != ConnectionString::SET) {
return Status(ErrorCodes::BadValue,
str::stream() << "configdb supports only replica set connection string");
}
std::vector<HostAndPort> seedServers;
bool resolvedSomeSeedSever = false;
for (const auto& host : configdbConnectionString.getValue().getServers()) {
seedServers.push_back(host);
if (!seedServers.back().hasPort()) {
seedServers.back() = HostAndPort{host.host(), ServerGlobalParams::ConfigServerPort};
}
if (!hostbyname(seedServers.back().host().c_str()).empty()) {
resolvedSomeSeedSever = true;
}
}
if (!resolvedSomeSeedSever) {
if (!hostbyname(configdbConnectionString.getValue().getSetName().c_str()).empty()) {
warning() << "The replica set name \""
<< escape(configdbConnectionString.getValue().getSetName())
<< "\" resolves as a host name, but none of the servers in the seed list do. "
"Did you reverse the replica set name and the seed list in "
<< escape(configdbConnectionString.getValue().toString()) << "?";
}
}
mongosGlobalParams.configdbs =
ConnectionString{configdbConnectionString.getValue().type(),
seedServers,
configdbConnectionString.getValue().getSetName()};
if (mongosGlobalParams.configdbs.getServers().size() < 3) {
warning() << "Running a sharded cluster with fewer than 3 config servers should only be "
"done for testing purposes and is not recommended for production.";
}
return Status::OK();
}
Status storeMongodOptions(const moe::Environment& params,
const std::vector<std::string>& args) {
Status ret = storeServerOptions(params, args);
if (!ret.isOK()) {
std::cerr << "Error storing command line: " << ret.toString() << std::endl;
::_exit(EXIT_BADOPTIONS);
}
if (params.count("dbpath")) {
storageGlobalParams.dbpath = params["dbpath"].as<string>();
if (params.count("fork") && storageGlobalParams.dbpath[0] != '/') {
// we need to change dbpath if we fork since we change
// cwd to "/"
// fork only exists on *nix
// so '/' is safe
storageGlobalParams.dbpath = serverGlobalParams.cwd + "/" +
storageGlobalParams.dbpath;
}
}
#ifdef _WIN32
if (storageGlobalParams.dbpath.size() > 1 &&
storageGlobalParams.dbpath[storageGlobalParams.dbpath.size()-1] == '/') {
// size() check is for the unlikely possibility of --dbpath "/"
storageGlobalParams.dbpath =
storageGlobalParams.dbpath.erase(storageGlobalParams.dbpath.size()-1);
}
#endif
if ( params.count("slowms")) {
serverGlobalParams.slowMS = params["slowms"].as<int>();
}
if ( params.count("syncdelay")) {
storageGlobalParams.syncdelay = params["syncdelay"].as<double>();
}
if (params.count("directoryperdb")) {
storageGlobalParams.directoryperdb = true;
}
if (params.count("cpu")) {
serverGlobalParams.cpu = true;
}
if (params.count("noauth")) {
getGlobalAuthorizationManager()->setAuthEnabled(false);
}
if (params.count("auth")) {
getGlobalAuthorizationManager()->setAuthEnabled(true);
}
if (params.count("quota")) {
storageGlobalParams.quota = true;
}
if (params.count("quotaFiles")) {
storageGlobalParams.quota = true;
storageGlobalParams.quotaFiles = params["quotaFiles"].as<int>() - 1;
}
if ((params.count("nodur") || params.count("nojournal")) &&
(params.count("dur") || params.count("journal"))) {
std::cerr << "Can't specify both --journal and --nojournal options." << std::endl;
::_exit(EXIT_BADOPTIONS);
}
if (params.count("nodur") || params.count("nojournal")) {
storageGlobalParams.dur = false;
}
if (params.count("dur") || params.count("journal")) {
storageGlobalParams.dur = true;
}
if (params.count("durOptions")) {
storageGlobalParams.durOptions = params["durOptions"].as<int>();
}
if( params.count("journalCommitInterval") ) {
// don't check if dur is false here as many will just use the default, and will default
// to off on win32. ie no point making life a little more complex by giving an error on
// a dev environment.
storageGlobalParams.journalCommitInterval =
params["journalCommitInterval"].as<unsigned>();
if (storageGlobalParams.journalCommitInterval <= 1 ||
storageGlobalParams.journalCommitInterval > 300) {
std::cerr << "--journalCommitInterval out of allowed range (0-300ms)" << std::endl;
::_exit(EXIT_BADOPTIONS);
}
}
if (params.count("journalOptions")) {
storageGlobalParams.durOptions = params["journalOptions"].as<int>();
}
if (params.count("nohints")) {
storageGlobalParams.useHints = false;
}
if (params.count("nopreallocj")) {
storageGlobalParams.preallocj = false;
}
if (params.count("httpinterface")) {
if (params.count("nohttpinterface")) {
std::cerr << "can't have both --httpinterface and --nohttpinterface" << std::endl;
::_exit(EXIT_BADOPTIONS);
}
serverGlobalParams.isHttpInterfaceEnabled = true;
}
// SERVER-10019 Enabling rest/jsonp without --httpinterface should break in the future
if (params.count("rest")) {
if (params.count("nohttpinterface")) {
log() << "** WARNING: Should not specify both --rest and --nohttpinterface" <<
startupWarningsLog;
}
else if (!params.count("httpinterface")) {
log() << "** WARNING: --rest is specified without --httpinterface," <<
startupWarningsLog;
log() << "** enabling http interface" << startupWarningsLog;
serverGlobalParams.isHttpInterfaceEnabled = true;
}
serverGlobalParams.rest = true;
}
if (params.count("jsonp")) {
if (params.count("nohttpinterface")) {
log() << "** WARNING: Should not specify both --jsonp and --nohttpinterface" <<
startupWarningsLog;
}
else if (!params.count("httpinterface")) {
log() << "** WARNING --jsonp is specified without --httpinterface," <<
startupWarningsLog;
log() << "** enabling http interface" << startupWarningsLog;
serverGlobalParams.isHttpInterfaceEnabled = true;
}
serverGlobalParams.jsonp = true;
}
if (params.count("noscripting")) {
mongodGlobalParams.scriptingEnabled = false;
}
if (params.count("noprealloc")) {
storageGlobalParams.prealloc = false;
cout << "note: noprealloc may hurt performance in many applications" << endl;
}
if (params.count("smallfiles")) {
storageGlobalParams.smallfiles = true;
}
if (params.count("diaglog")) {
int x = params["diaglog"].as<int>();
if ( x < 0 || x > 7 ) {
std::cerr << "can't interpret --diaglog setting" << std::endl;
::_exit(EXIT_BADOPTIONS);
}
_diaglog.setLevel(x);
}
if ((params.count("dur") || params.count("journal")) && params.count("repair")) {
std::cerr << "Can't specify both --journal and --repair options." << std::endl;
::_exit(EXIT_BADOPTIONS);
}
if (params.count("repair")) {
Record::MemoryTrackingEnabled = false;
mongodGlobalParams.upgrade = 1; // --repair implies --upgrade
mongodGlobalParams.repair = 1;
storageGlobalParams.dur = false;
}
if (params.count("upgrade")) {
Record::MemoryTrackingEnabled = false;
mongodGlobalParams.upgrade = 1;
}
if (params.count("notablescan")) {
storageGlobalParams.noTableScan = true;
}
if (params.count("master")) {
replSettings.master = true;
}
if (params.count("slave")) {
replSettings.slave = SimpleSlave;
}
if (params.count("slavedelay")) {
replSettings.slavedelay = params["slavedelay"].as<int>();
}
if (params.count("fastsync")) {
replSettings.fastsync = true;
}
if (params.count("autoresync")) {
replSettings.autoresync = true;
if( params.count("replSet") ) {
std::cerr << "--autoresync is not used with --replSet\nsee "
<< "http://dochub.mongodb.org/core/resyncingaverystalereplicasetmember"
<< std::endl;
::_exit(EXIT_BADOPTIONS);
}
}
if (params.count("source")) {
/* specifies what the source in local.sources should be */
replSettings.source = params["source"].as<string>().c_str();
}
if( params.count("pretouch") ) {
replSettings.pretouch = params["pretouch"].as<int>();
}
if (params.count("replSet")) {
if (params.count("slavedelay")) {
std::cerr << "--slavedelay cannot be used with --replSet" << std::endl;
::_exit(EXIT_BADOPTIONS);
}
else if (params.count("only")) {
std::cerr << "--only cannot be used with --replSet" << std::endl;
::_exit(EXIT_BADOPTIONS);
}
/* seed list of hosts for the repl set */
replSettings.replSet = params["replSet"].as<string>().c_str();
}
if (params.count("replIndexPrefetch")) {
replSettings.rsIndexPrefetch = params["replIndexPrefetch"].as<std::string>();
}
if (params.count("noIndexBuildRetry")) {
serverGlobalParams.indexBuildRetry = false;
}
if (params.count("only")) {
replSettings.only = params["only"].as<string>().c_str();
}
if( params.count("nssize") ) {
int x = params["nssize"].as<int>();
if (x <= 0 || x > (0x7fffffff/1024/1024)) {
std::cerr << "bad --nssize arg" << std::endl;
::_exit(EXIT_BADOPTIONS);
}
storageGlobalParams.lenForNewNsFiles = x * 1024 * 1024;
verify(storageGlobalParams.lenForNewNsFiles > 0);
}
if (params.count("oplogSize")) {
long long x = params["oplogSize"].as<int>();
if (x <= 0) {
std::cerr << "bad --oplogSize arg" << std::endl;
::_exit(EXIT_BADOPTIONS);
}
// note a small size such as x==1 is ok for an arbiter.
if( x > 1000 && sizeof(void*) == 4 ) {
StringBuilder sb;
std::cerr << "--oplogSize of " << x
<< "MB is too big for 32 bit version. Use 64 bit build instead."
<< std::endl;
::_exit(EXIT_BADOPTIONS);
}
replSettings.oplogSize = x * 1024 * 1024;
verify(replSettings.oplogSize > 0);
}
if (params.count("cacheSize")) {
long x = params["cacheSize"].as<long>();
if (x <= 0) {
std::cerr << "bad --cacheSize arg" << std::endl;
::_exit(EXIT_BADOPTIONS);
}
std::cerr << "--cacheSize option not currently supported" << std::endl;
::_exit(EXIT_BADOPTIONS);
}
if (!params.count("port")) {
if( params.count("configsvr") ) {
serverGlobalParams.port = ServerGlobalParams::ConfigServerPort;
}
if( params.count("shardsvr") ) {
if( params.count("configsvr") ) {
std::cerr << "can't do --shardsvr and --configsvr at the same time"
<< std::endl;
::_exit(EXIT_BADOPTIONS);
}
serverGlobalParams.port = ServerGlobalParams::ShardServerPort;
}
}
else {
if (serverGlobalParams.port <= 0 || serverGlobalParams.port > 65535) {
std::cerr << "bad --port number" << std::endl;
::_exit(EXIT_BADOPTIONS);
}
}
if ( params.count("configsvr" ) ) {
serverGlobalParams.configsvr = true;
storageGlobalParams.smallfiles = true; // config server implies small files
if (replSettings.usingReplSets() || replSettings.master || replSettings.slave) {
std::cerr << "replication should not be enabled on a config server" << std::endl;
::_exit(EXIT_BADOPTIONS);
}
if (!params.count("nodur") && !params.count("nojournal"))
storageGlobalParams.dur = true;
if (!params.count("dbpath"))
storageGlobalParams.dbpath = "/data/configdb";
replSettings.master = true;
if (!params.count("oplogSize"))
replSettings.oplogSize = 5 * 1024 * 1024;
}
if ( params.count( "profile" ) ) {
serverGlobalParams.defaultProfile = params["profile"].as<int>();
}
if (params.count("ipv6")) {
enableIPv6();
}
if (params.count("noMoveParanoia") && params.count("moveParanoia")) {
std::cerr << "The moveParanoia and noMoveParanoia flags cannot both be set; "
<< "please use only one of them." << std::endl;
::_exit(EXIT_BADOPTIONS);
}
if (params.count("noMoveParanoia"))
serverGlobalParams.moveParanoia = false;
if (params.count("moveParanoia"))
serverGlobalParams.moveParanoia = true;
if (params.count("pairwith") || params.count("arbiter") || params.count("opIdMem")) {
std::cerr << "****\n"
<< "Replica Pairs have been deprecated. Invalid options: --pairwith, "
<< "--arbiter, and/or --opIdMem\n"
<< "<http://dochub.mongodb.org/core/replicapairs>\n"
<< "****" << std::endl;
::_exit(EXIT_BADOPTIONS);
}
// needs to be after things like --configsvr parsing, thus here.
if (params.count("repairpath")) {
storageGlobalParams.repairpath = params["repairpath"].as<string>();
if (!storageGlobalParams.repairpath.size()) {
std::cerr << "repairpath is empty" << std::endl;
::_exit(EXIT_BADOPTIONS);
}
if (storageGlobalParams.dur &&
!str::startsWith(storageGlobalParams.repairpath,
storageGlobalParams.dbpath)) {
std::cerr << "You must use a --repairpath that is a subdirectory of "
<< "--dbpath when using journaling" << std::endl;
::_exit(EXIT_BADOPTIONS);
}
}
else {
storageGlobalParams.repairpath = storageGlobalParams.dbpath;
}
if (replSettings.pretouch)
log() << "--pretouch " << replSettings.pretouch << endl;
if (sizeof(void*) == 4 && !(params.count("nodur") || params.count("nojournal") ||
params.count("dur") || params.count("journal"))) {
// trying to make this stand out more like startup warnings
log() << endl;
warning() << "32-bit servers don't have journaling enabled by default. "
<< "Please use --journal if you want durability." << endl;
log() << endl;
}
return Status::OK();
}
Status storeMongosOptions(const moe::Environment& params,
const std::vector<std::string>& args) {
Status ret = storeServerOptions(params, args);
if (!ret.isOK()) {
std::cerr << "Error storing command line: " << ret.toString() << std::endl;
::_exit(EXIT_BADOPTIONS);
}
if ( params.count( "chunkSize" ) ) {
int csize = params["chunkSize"].as<int>();
// validate chunksize before proceeding
if ( csize == 0 ) {
std::cerr << "error: need a non-zero chunksize" << std::endl;
::_exit(EXIT_BADOPTIONS);
}
if ( !Chunk::setMaxChunkSizeSizeMB( csize ) ) {
std::cerr << "MaxChunkSize invalid" << std::endl;
::_exit(EXIT_BADOPTIONS);
}
}
if (params.count( "port" ) ) {
int port = params["port"].as<int>();
if ( port <= 0 || port > 65535 ) {
out() << "error: port number must be between 1 and 65535" << endl;
::_exit(EXIT_FAILURE);
}
}
if ( params.count( "localThreshold" ) ) {
serverGlobalParams.defaultLocalThresholdMillis = params["localThreshold"].as<int>();
}
if ( params.count( "ipv6" ) ) {
enableIPv6();
}
if ( params.count( "jsonp" ) ) {
serverGlobalParams.jsonp = true;
}
if ( params.count( "test" ) ) {
::mongo::logger::globalLogDomain()->setMinimumLoggedSeverity(
::mongo::logger::LogSeverity::Debug(5));
StartupTest::runTests();
::_exit(EXIT_SUCCESS);
}
if (params.count("noscripting")) {
// This option currently has no effect for mongos
}
if (params.count("httpinterface")) {
if (params.count("nohttpinterface")) {
std::cerr << "can't have both --httpinterface and --nohttpinterface" << std::endl;
::_exit(EXIT_BADOPTIONS);
}
serverGlobalParams.isHttpInterfaceEnabled = true;
}
if (params.count("noAutoSplit")) {
warning() << "running with auto-splitting disabled" << endl;
Chunk::ShouldAutoSplit = false;
}
if ( ! params.count( "configdb" ) ) {
std::cerr << "error: no args for --configdb" << std::endl;
::_exit(EXIT_BADOPTIONS);
}
splitStringDelim(params["configdb"].as<std::string>(), &mongosGlobalParams.configdbs, ',');
if (mongosGlobalParams.configdbs.size() != 1 && mongosGlobalParams.configdbs.size() != 3) {
std::cerr << "need either 1 or 3 configdbs" << std::endl;
::_exit(EXIT_BADOPTIONS);
}
if (mongosGlobalParams.configdbs.size() == 1) {
warning() << "running with 1 config server should be done only for testing purposes "
<< "and is not recommended for production" << endl;
}
mongosGlobalParams.upgrade = params.count("upgrade");
return Status::OK();
}
Status storeMongosOptions(const moe::Environment& params, const std::vector<std::string>& args) {
Status ret = storeServerOptions(params, args);
if (!ret.isOK()) {
return ret;
}
if (params.count("sharding.chunkSize")) {
int csize = params["sharding.chunkSize"].as<int>();
// validate chunksize before proceeding
if (csize == 0) {
return Status(ErrorCodes::BadValue, "error: need a non-zero chunksize");
}
if (!Chunk::setMaxChunkSizeSizeMB(csize)) {
return Status(ErrorCodes::BadValue, "MaxChunkSize invalid");
}
}
if (params.count("net.port")) {
int port = params["net.port"].as<int>();
if (port <= 0 || port > 65535) {
return Status(ErrorCodes::BadValue, "error: port number must be between 1 and 65535");
}
}
if (params.count("replication.localPingThresholdMs")) {
serverGlobalParams.defaultLocalThresholdMillis =
params["replication.localPingThresholdMs"].as<int>();
}
if (params.count("net.http.JSONPEnabled")) {
serverGlobalParams.jsonp = params["net.http.JSONPEnabled"].as<bool>();
}
if (params.count("noscripting")) {
// This option currently has no effect for mongos
}
if (params.count("sharding.autoSplit")) {
Chunk::ShouldAutoSplit = params["sharding.autoSplit"].as<bool>();
if (Chunk::ShouldAutoSplit == false) {
warning() << "running with auto-splitting disabled";
}
}
if (!params.count("sharding.configDB")) {
return Status(ErrorCodes::BadValue, "error: no args for --configdb");
}
{
std::string configdbString = params["sharding.configDB"].as<std::string>();
auto configdbConnectionString = ConnectionString::parse(configdbString);
if (!configdbConnectionString.isOK()) {
return Status(ErrorCodes::BadValue,
str::stream() << "Invalid configdb connection string: "
<< configdbConnectionString.getStatus().toString());
}
mongosGlobalParams.configdbs = configdbConnectionString.getValue();
}
std::vector<HostAndPort> configServers = mongosGlobalParams.configdbs.getServers();
if (mongosGlobalParams.configdbs.type() != ConnectionString::SYNC &&
mongosGlobalParams.configdbs.type() != ConnectionString::SET) {
return Status(
ErrorCodes::BadValue,
"Must have either 3 node legacy config servers, or a replica set config server");
}
if (configServers.size() < 3) {
warning() << "running with less than 3 config servers should be done only for testing "
"purposes and is not recommended for production";
}
return Status::OK();
}