111 lines
3.2 KiB
JavaScript
111 lines
3.2 KiB
JavaScript
//
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// Utility functions for multi-version replica sets
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//
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/**
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* @param options {Object} see ReplSetTest.start & MongoRunner.runMongod.
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* @param user {string} optional, user name for authentication.
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* @param pwd {string} optional, password for authentication. Must be set if user is set.
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*/
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ReplSetTest.prototype.upgradeSet = function(options, user, pwd) {
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options = options || {};
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var primary = this.getPrimary();
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// Upgrade secondaries first
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var nodesToUpgrade = this.getSecondaries();
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// Then upgrade primaries
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nodesToUpgrade.push(primary);
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// We can upgrade with no primary downtime if we have enough nodes
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var noDowntimePossible = this.nodes.length > 2;
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for (var i = 0; i < nodesToUpgrade.length; i++) {
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var node = nodesToUpgrade[ i ];
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if (node == primary) {
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node = this.stepdown(node);
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primary = this.getPrimary();
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}
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var prevPrimaryId = this.getNodeId(primary);
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//merge new options into node settings...
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for (var nodeName in this.nodeOptions) {
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this.nodeOptions[nodeName] = Object.merge(this.nodeOptions[nodeName], options);
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}
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this.upgradeNode(node, options, user, pwd);
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if (noDowntimePossible)
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assert.eq(this.getNodeId(primary), prevPrimaryId);
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}
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};
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ReplSetTest.prototype.upgradeNode = function(node, opts, user, pwd) {
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if (user != undefined) {
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assert.eq(1, node.getDB("admin").auth(user, pwd));
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}
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var isMaster = node.getDB('admin').runCommand({ isMaster: 1 });
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if (!isMaster.arbiterOnly) {
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assert.commandWorked(node.adminCommand("replSetMaintenance"));
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this.waitForState(node, ReplSetTest.State.RECOVERING);
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}
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var newNode = this.restart(node, opts);
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if (user != undefined) {
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newNode.getDB("admin").auth(user, pwd);
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}
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var waitForStates = [ ReplSetTest.State.PRIMARY,
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ReplSetTest.State.SECONDARY,
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ReplSetTest.State.ARBITER ];
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this.waitForState(newNode, waitForStates);
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return newNode;
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};
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ReplSetTest.prototype.stepdown = function(nodeId) {
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nodeId = this.getNodeId(nodeId);
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assert.eq(this.getNodeId(this.getPrimary()), nodeId);
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var node = this.nodes[nodeId];
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try {
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node.getDB("admin").runCommand({ replSetStepDown: 50, force: true });
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assert(false);
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}
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catch (ex) {
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print('Caught exception after stepDown cmd: ' + tojson(ex));
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}
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return this.reconnect(node);
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};
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ReplSetTest.prototype.reconnect = function(node) {
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var nodeId = this.getNodeId(node);
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this.nodes[nodeId] = new Mongo(node.host);
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var except = {};
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for (var i in node) {
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if (typeof(node[i]) == "function") continue;
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this.nodes[nodeId][i] = node[i];
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}
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return this.nodes[nodeId];
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};
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ReplSetTest.prototype.conf = function () {
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var admin = this.getPrimary().getDB('admin');
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var resp = admin.runCommand({replSetGetConfig:1});
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if (resp.ok && !(resp.errmsg) && resp.config)
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return resp.config;
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else if (resp.errmsg && resp.errmsg.startsWith("no such cmd"))
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return admin.getSisterDB("local").system.replset.findOne();
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throw new Error("Could not retrieve replica set config: " + tojson(resp));
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};
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