You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
497 lines
16 KiB
JavaScript
497 lines
16 KiB
JavaScript
'use strict';
|
|
|
|
const Server = require('./server');
|
|
const Cursor = require('../cursor');
|
|
const MongoError = require('mongodb-core').MongoError;
|
|
const TopologyBase = require('./topology_base').TopologyBase;
|
|
const Store = require('./topology_base').Store;
|
|
const CReplSet = require('mongodb-core').ReplSet;
|
|
const MAX_JS_INT = require('../utils').MAX_JS_INT;
|
|
const translateOptions = require('../utils').translateOptions;
|
|
const filterOptions = require('../utils').filterOptions;
|
|
const mergeOptions = require('../utils').mergeOptions;
|
|
|
|
/**
|
|
* @fileOverview The **ReplSet** class is a class that represents a Replicaset topology and is
|
|
* used to construct connections.
|
|
*
|
|
* **ReplSet Should not be used, use MongoClient.connect**
|
|
*/
|
|
|
|
// Allowed parameters
|
|
var legalOptionNames = [
|
|
'ha',
|
|
'haInterval',
|
|
'replicaSet',
|
|
'rs_name',
|
|
'secondaryAcceptableLatencyMS',
|
|
'connectWithNoPrimary',
|
|
'poolSize',
|
|
'ssl',
|
|
'checkServerIdentity',
|
|
'sslValidate',
|
|
'sslCA',
|
|
'sslCert',
|
|
'ciphers',
|
|
'ecdhCurve',
|
|
'sslCRL',
|
|
'sslKey',
|
|
'sslPass',
|
|
'socketOptions',
|
|
'bufferMaxEntries',
|
|
'store',
|
|
'auto_reconnect',
|
|
'autoReconnect',
|
|
'emitError',
|
|
'keepAlive',
|
|
'keepAliveInitialDelay',
|
|
'noDelay',
|
|
'connectTimeoutMS',
|
|
'socketTimeoutMS',
|
|
'strategy',
|
|
'debug',
|
|
'family',
|
|
'loggerLevel',
|
|
'logger',
|
|
'reconnectTries',
|
|
'appname',
|
|
'domainsEnabled',
|
|
'servername',
|
|
'promoteLongs',
|
|
'promoteValues',
|
|
'promoteBuffers',
|
|
'maxStalenessSeconds',
|
|
'promiseLibrary',
|
|
'minSize',
|
|
'monitorCommands'
|
|
];
|
|
|
|
/**
|
|
* Creates a new ReplSet instance
|
|
* @class
|
|
* @deprecated
|
|
* @param {Server[]} servers A seedlist of servers participating in the replicaset.
|
|
* @param {object} [options] Optional settings.
|
|
* @param {boolean} [options.ha=true] Turn on high availability monitoring.
|
|
* @param {number} [options.haInterval=10000] Time between each replicaset status check.
|
|
* @param {string} [options.replicaSet] The name of the replicaset to connect to.
|
|
* @param {number} [options.secondaryAcceptableLatencyMS=15] Sets the range of servers to pick when using NEAREST (lowest ping ms + the latency fence, ex: range of 1 to (1 + 15) ms)
|
|
* @param {boolean} [options.connectWithNoPrimary=false] Sets if the driver should connect even if no primary is available
|
|
* @param {number} [options.poolSize=5] Number of connections in the connection pool for each server instance, set to 5 as default for legacy reasons.
|
|
* @param {boolean} [options.ssl=false] Use ssl connection (needs to have a mongod server with ssl support)
|
|
* @param {boolean|function} [options.checkServerIdentity=true] Ensure we check server identify during SSL, set to false to disable checking. Only works for Node 0.12.x or higher. You can pass in a boolean or your own checkServerIdentity override function.
|
|
* @param {boolean} [options.sslValidate=false] Validate mongod server certificate against ca (needs to have a mongod server with ssl support, 2.4 or higher)
|
|
* @param {array} [options.sslCA] Array of valid certificates either as Buffers or Strings (needs to have a mongod server with ssl support, 2.4 or higher)
|
|
* @param {array} [options.sslCRL] Array of revocation certificates either as Buffers or Strings (needs to have a mongod server with ssl support, 2.4 or higher)
|
|
* @param {(Buffer|string)} [options.sslCert] String or buffer containing the certificate we wish to present (needs to have a mongod server with ssl support, 2.4 or higher.
|
|
* @param {string} [options.ciphers] Passed directly through to tls.createSecureContext. See https://nodejs.org/dist/latest-v9.x/docs/api/tls.html#tls_tls_createsecurecontext_options for more info.
|
|
* @param {string} [options.ecdhCurve] Passed directly through to tls.createSecureContext. See https://nodejs.org/dist/latest-v9.x/docs/api/tls.html#tls_tls_createsecurecontext_options for more info.
|
|
* @param {(Buffer|string)} [options.sslKey] String or buffer containing the certificate private key we wish to present (needs to have a mongod server with ssl support, 2.4 or higher)
|
|
* @param {(Buffer|string)} [options.sslPass] String or buffer containing the certificate password (needs to have a mongod server with ssl support, 2.4 or higher)
|
|
* @param {string} [options.servername] String containing the server name requested via TLS SNI.
|
|
* @param {object} [options.socketOptions] Socket options
|
|
* @param {boolean} [options.socketOptions.noDelay=true] TCP Socket NoDelay option.
|
|
* @param {boolean} [options.socketOptions.keepAlive=true] TCP Connection keep alive enabled
|
|
* @param {number} [options.socketOptions.keepAliveInitialDelay=30000] The number of milliseconds to wait before initiating keepAlive on the TCP socket
|
|
* @param {number} [options.socketOptions.connectTimeoutMS=10000] TCP Connection timeout setting
|
|
* @param {number} [options.socketOptions.socketTimeoutMS=0] TCP Socket timeout setting
|
|
* @param {boolean} [options.domainsEnabled=false] Enable the wrapping of the callback in the current domain, disabled by default to avoid perf hit.
|
|
* @param {number} [options.maxStalenessSeconds=undefined] The max staleness to secondary reads (values under 10 seconds cannot be guaranteed);
|
|
* @param {boolean} [options.monitorCommands=false] Enable command monitoring for this topology
|
|
* @fires ReplSet#connect
|
|
* @fires ReplSet#ha
|
|
* @fires ReplSet#joined
|
|
* @fires ReplSet#left
|
|
* @fires ReplSet#fullsetup
|
|
* @fires ReplSet#open
|
|
* @fires ReplSet#close
|
|
* @fires ReplSet#error
|
|
* @fires ReplSet#timeout
|
|
* @fires ReplSet#parseError
|
|
* @fires ReplSet#commandStarted
|
|
* @fires ReplSet#commandSucceeded
|
|
* @fires ReplSet#commandFailed
|
|
* @property {string} parserType the parser type used (c++ or js).
|
|
* @return {ReplSet} a ReplSet instance.
|
|
*/
|
|
class ReplSet extends TopologyBase {
|
|
constructor(servers, options) {
|
|
super();
|
|
|
|
options = options || {};
|
|
var self = this;
|
|
|
|
// Filter the options
|
|
options = filterOptions(options, legalOptionNames);
|
|
|
|
// Ensure all the instances are Server
|
|
for (var i = 0; i < servers.length; i++) {
|
|
if (!(servers[i] instanceof Server)) {
|
|
throw MongoError.create({
|
|
message: 'all seed list instances must be of the Server type',
|
|
driver: true
|
|
});
|
|
}
|
|
}
|
|
|
|
// Stored options
|
|
var storeOptions = {
|
|
force: false,
|
|
bufferMaxEntries:
|
|
typeof options.bufferMaxEntries === 'number' ? options.bufferMaxEntries : MAX_JS_INT
|
|
};
|
|
|
|
// Shared global store
|
|
var store = options.store || new Store(self, storeOptions);
|
|
|
|
// Build seed list
|
|
var seedlist = servers.map(function(x) {
|
|
return { host: x.host, port: x.port };
|
|
});
|
|
|
|
// Clone options
|
|
var clonedOptions = mergeOptions(
|
|
{},
|
|
{
|
|
disconnectHandler: store,
|
|
cursorFactory: Cursor,
|
|
reconnect: false,
|
|
emitError: typeof options.emitError === 'boolean' ? options.emitError : true,
|
|
size: typeof options.poolSize === 'number' ? options.poolSize : 5,
|
|
monitorCommands:
|
|
typeof options.monitorCommands === 'boolean' ? options.monitorCommands : false
|
|
}
|
|
);
|
|
|
|
// Translate any SSL options and other connectivity options
|
|
clonedOptions = translateOptions(clonedOptions, options);
|
|
|
|
// Socket options
|
|
var socketOptions =
|
|
options.socketOptions && Object.keys(options.socketOptions).length > 0
|
|
? options.socketOptions
|
|
: options;
|
|
|
|
// Translate all the options to the mongodb-core ones
|
|
clonedOptions = translateOptions(clonedOptions, socketOptions);
|
|
|
|
// Build default client information
|
|
clonedOptions.clientInfo = this.clientInfo;
|
|
// Do we have an application specific string
|
|
if (options.appname) {
|
|
clonedOptions.clientInfo.application = { name: options.appname };
|
|
}
|
|
|
|
// Create the ReplSet
|
|
var coreTopology = new CReplSet(seedlist, clonedOptions);
|
|
|
|
// Listen to reconnect event
|
|
coreTopology.on('reconnect', function() {
|
|
self.emit('reconnect');
|
|
store.execute();
|
|
});
|
|
|
|
// Internal state
|
|
this.s = {
|
|
// Replicaset
|
|
coreTopology: coreTopology,
|
|
// Server capabilities
|
|
sCapabilities: null,
|
|
// Debug tag
|
|
tag: options.tag,
|
|
// Store options
|
|
storeOptions: storeOptions,
|
|
// Cloned options
|
|
clonedOptions: clonedOptions,
|
|
// Store
|
|
store: store,
|
|
// Options
|
|
options: options,
|
|
// Server Session Pool
|
|
sessionPool: null,
|
|
// Active client sessions
|
|
sessions: [],
|
|
// Promise library
|
|
promiseLibrary: options.promiseLibrary || Promise
|
|
};
|
|
|
|
// Debug
|
|
if (clonedOptions.debug) {
|
|
// Last ismaster
|
|
Object.defineProperty(this, 'replset', {
|
|
enumerable: true,
|
|
get: function() {
|
|
return coreTopology;
|
|
}
|
|
});
|
|
}
|
|
}
|
|
|
|
// Connect method
|
|
connect(_options, callback) {
|
|
var self = this;
|
|
if ('function' === typeof _options) (callback = _options), (_options = {});
|
|
if (_options == null) _options = {};
|
|
if (!('function' === typeof callback)) callback = null;
|
|
_options = Object.assign({}, this.s.clonedOptions, _options);
|
|
self.s.options = _options;
|
|
|
|
// Update bufferMaxEntries
|
|
self.s.storeOptions.bufferMaxEntries =
|
|
typeof _options.bufferMaxEntries === 'number' ? _options.bufferMaxEntries : -1;
|
|
|
|
// Actual handler
|
|
var errorHandler = function(event) {
|
|
return function(err) {
|
|
if (event !== 'error') {
|
|
self.emit(event, err);
|
|
}
|
|
};
|
|
};
|
|
|
|
// Clear out all the current handlers left over
|
|
var events = [
|
|
'timeout',
|
|
'error',
|
|
'close',
|
|
'serverOpening',
|
|
'serverDescriptionChanged',
|
|
'serverHeartbeatStarted',
|
|
'serverHeartbeatSucceeded',
|
|
'serverHeartbeatFailed',
|
|
'serverClosed',
|
|
'topologyOpening',
|
|
'topologyClosed',
|
|
'topologyDescriptionChanged',
|
|
'commandStarted',
|
|
'commandSucceeded',
|
|
'commandFailed',
|
|
'joined',
|
|
'left',
|
|
'ping',
|
|
'ha'
|
|
];
|
|
events.forEach(function(e) {
|
|
self.s.coreTopology.removeAllListeners(e);
|
|
});
|
|
|
|
// relay the event
|
|
var relay = function(event) {
|
|
return function(t, server) {
|
|
self.emit(event, t, server);
|
|
};
|
|
};
|
|
|
|
// Replset events relay
|
|
var replsetRelay = function(event) {
|
|
return function(t, server) {
|
|
self.emit(event, t, server.lastIsMaster(), server);
|
|
};
|
|
};
|
|
|
|
// Relay ha
|
|
var relayHa = function(t, state) {
|
|
self.emit('ha', t, state);
|
|
|
|
if (t === 'start') {
|
|
self.emit('ha_connect', t, state);
|
|
} else if (t === 'end') {
|
|
self.emit('ha_ismaster', t, state);
|
|
}
|
|
};
|
|
|
|
// Set up serverConfig listeners
|
|
self.s.coreTopology.on('joined', replsetRelay('joined'));
|
|
self.s.coreTopology.on('left', relay('left'));
|
|
self.s.coreTopology.on('ping', relay('ping'));
|
|
self.s.coreTopology.on('ha', relayHa);
|
|
|
|
// Set up SDAM listeners
|
|
self.s.coreTopology.on('serverDescriptionChanged', relay('serverDescriptionChanged'));
|
|
self.s.coreTopology.on('serverHeartbeatStarted', relay('serverHeartbeatStarted'));
|
|
self.s.coreTopology.on('serverHeartbeatSucceeded', relay('serverHeartbeatSucceeded'));
|
|
self.s.coreTopology.on('serverHeartbeatFailed', relay('serverHeartbeatFailed'));
|
|
self.s.coreTopology.on('serverOpening', relay('serverOpening'));
|
|
self.s.coreTopology.on('serverClosed', relay('serverClosed'));
|
|
self.s.coreTopology.on('topologyOpening', relay('topologyOpening'));
|
|
self.s.coreTopology.on('topologyClosed', relay('topologyClosed'));
|
|
self.s.coreTopology.on('topologyDescriptionChanged', relay('topologyDescriptionChanged'));
|
|
self.s.coreTopology.on('commandStarted', relay('commandStarted'));
|
|
self.s.coreTopology.on('commandSucceeded', relay('commandSucceeded'));
|
|
self.s.coreTopology.on('commandFailed', relay('commandFailed'));
|
|
|
|
self.s.coreTopology.on('fullsetup', function() {
|
|
self.emit('fullsetup', self, self);
|
|
});
|
|
|
|
self.s.coreTopology.on('all', function() {
|
|
self.emit('all', null, self);
|
|
});
|
|
|
|
// Connect handler
|
|
var connectHandler = function() {
|
|
// Set up listeners
|
|
self.s.coreTopology.once('timeout', errorHandler('timeout'));
|
|
self.s.coreTopology.once('error', errorHandler('error'));
|
|
self.s.coreTopology.once('close', errorHandler('close'));
|
|
|
|
// Emit open event
|
|
self.emit('open', null, self);
|
|
|
|
// Return correctly
|
|
try {
|
|
callback(null, self);
|
|
} catch (err) {
|
|
process.nextTick(function() {
|
|
throw err;
|
|
});
|
|
}
|
|
};
|
|
|
|
// Error handler
|
|
var connectErrorHandler = function() {
|
|
return function(err) {
|
|
['timeout', 'error', 'close'].forEach(function(e) {
|
|
self.s.coreTopology.removeListener(e, connectErrorHandler);
|
|
});
|
|
|
|
self.s.coreTopology.removeListener('connect', connectErrorHandler);
|
|
// Destroy the replset
|
|
self.s.coreTopology.destroy();
|
|
|
|
// Try to callback
|
|
try {
|
|
callback(err);
|
|
} catch (err) {
|
|
if (!self.s.coreTopology.isConnected())
|
|
process.nextTick(function() {
|
|
throw err;
|
|
});
|
|
}
|
|
};
|
|
};
|
|
|
|
// Set up listeners
|
|
self.s.coreTopology.once('timeout', connectErrorHandler('timeout'));
|
|
self.s.coreTopology.once('error', connectErrorHandler('error'));
|
|
self.s.coreTopology.once('close', connectErrorHandler('close'));
|
|
self.s.coreTopology.once('connect', connectHandler);
|
|
|
|
// Start connection
|
|
self.s.coreTopology.connect(_options);
|
|
}
|
|
|
|
close(forceClosed, callback) {
|
|
['timeout', 'error', 'close', 'joined', 'left'].forEach(e => this.removeAllListeners(e));
|
|
super.close(forceClosed, callback);
|
|
}
|
|
}
|
|
|
|
Object.defineProperty(ReplSet.prototype, 'haInterval', {
|
|
enumerable: true,
|
|
get: function() {
|
|
return this.s.coreTopology.s.haInterval;
|
|
}
|
|
});
|
|
|
|
/**
|
|
* A replset connect event, used to verify that the connection is up and running
|
|
*
|
|
* @event ReplSet#connect
|
|
* @type {ReplSet}
|
|
*/
|
|
|
|
/**
|
|
* The replset high availability event
|
|
*
|
|
* @event ReplSet#ha
|
|
* @type {function}
|
|
* @param {string} type The stage in the high availability event (start|end)
|
|
* @param {boolean} data.norepeat This is a repeating high availability process or a single execution only
|
|
* @param {number} data.id The id for this high availability request
|
|
* @param {object} data.state An object containing the information about the current replicaset
|
|
*/
|
|
|
|
/**
|
|
* A server member left the replicaset
|
|
*
|
|
* @event ReplSet#left
|
|
* @type {function}
|
|
* @param {string} type The type of member that left (primary|secondary|arbiter)
|
|
* @param {Server} server The server object that left
|
|
*/
|
|
|
|
/**
|
|
* A server member joined the replicaset
|
|
*
|
|
* @event ReplSet#joined
|
|
* @type {function}
|
|
* @param {string} type The type of member that joined (primary|secondary|arbiter)
|
|
* @param {Server} server The server object that joined
|
|
*/
|
|
|
|
/**
|
|
* ReplSet open event, emitted when replicaset can start processing commands.
|
|
*
|
|
* @event ReplSet#open
|
|
* @type {Replset}
|
|
*/
|
|
|
|
/**
|
|
* ReplSet fullsetup event, emitted when all servers in the topology have been connected to.
|
|
*
|
|
* @event ReplSet#fullsetup
|
|
* @type {Replset}
|
|
*/
|
|
|
|
/**
|
|
* ReplSet close event
|
|
*
|
|
* @event ReplSet#close
|
|
* @type {object}
|
|
*/
|
|
|
|
/**
|
|
* ReplSet error event, emitted if there is an error listener.
|
|
*
|
|
* @event ReplSet#error
|
|
* @type {MongoError}
|
|
*/
|
|
|
|
/**
|
|
* ReplSet timeout event
|
|
*
|
|
* @event ReplSet#timeout
|
|
* @type {object}
|
|
*/
|
|
|
|
/**
|
|
* ReplSet parseError event
|
|
*
|
|
* @event ReplSet#parseError
|
|
* @type {object}
|
|
*/
|
|
|
|
/**
|
|
* An event emitted indicating a command was started, if command monitoring is enabled
|
|
*
|
|
* @event ReplSet#commandStarted
|
|
* @type {object}
|
|
*/
|
|
|
|
/**
|
|
* An event emitted indicating a command succeeded, if command monitoring is enabled
|
|
*
|
|
* @event ReplSet#commandSucceeded
|
|
* @type {object}
|
|
*/
|
|
|
|
/**
|
|
* An event emitted indicating a command failed, if command monitoring is enabled
|
|
*
|
|
* @event ReplSet#commandFailed
|
|
* @type {object}
|
|
*/
|
|
|
|
module.exports = ReplSet;
|