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/**
* Tests upgrading a standalone node or replica set through several major versions.
*
* For each version downloaded by the multiversion setup:
* - Start a node or replica set of that version, without clearing data files from the previous
* iteration.
* - Create a new collection.
* - Insert a document into the new collection.
* - Create an index on the new collection.
*
* This test requires mmapv1 since 2.6 is tested. This can be removed when 2.6 is dropped.
* @tags: [requires_mmapv1]
*/
(function() {
'use strict';
load('jstests/libs/get_index_helpers.js');
load('jstests/multiVersion/libs/multi_rs.js');
load('jstests/multiVersion/libs/verify_versions.js');
// Setup the dbpath for this test.
const dbpath = MongoRunner.dataPath + 'major_version_upgrade';
resetDbpath(dbpath);
// We set noCleanData to true in order to preserve the data files between iterations.
const defaultOptions = {
dbpath: dbpath,
noCleanData: true,
};
// This lists all supported releases and needs to be kept up to date as versions are added and
// dropped.
// TODO SERVER-26792: In the future, we should have a common place from which both the
// multiversion setup procedure and this test get information about supported major releases.
const versions = [
{binVersion: '2.6', testCollection: 'two_six'},
{binVersion: '3.0', testCollection: 'three_zero'},
{binVersion: '3.2', testCollection: 'three_two'},
{binVersion: '3.2.1', testCollection: 'three_two_one'},
{binVersion: 'last-stable', testCollection: 'last_stable'},
{binVersion: 'latest', testCollection: 'latest'},
];
// Standalone
// Iterate from earliest to latest versions specified in the versions list, and follow the steps
// outlined at the top of this test file.
for (let i = 0; i < versions.length; i++) {
let version = versions[i];
let latestOptions = Object.extend({binVersion: version.binVersion}, defaultOptions);
var changedAuthMechanism = false;
if (TestData.authMechanism === "SCRAM-SHA-1" && version.binVersion === "2.6") {
TestData.authMechanism = undefined;
DB.prototype._defaultAuthenticationMechanism = "MONGODB-CR";
changedAuthMechanism = true;
}
// Start a mongod with specified version.
let conn = MongoRunner.runMongod(latestOptions);
assert.neq(
null, conn, 'mongod was unable to start up with options: ' + tojson(latestOptions));
assert.binVersion(conn, version.binVersion);
// Connect to the 'test' database.
let testDB = conn.getDB('test');
// Verify that the data and indices from previous iterations are still accessible.
for (let j = 0; j < i; j++) {
let oldVersionCollection = versions[j].testCollection;
assert.eq(1,
testDB[oldVersionCollection].count(),
`data from ${oldVersionCollection} should be available; options: ` +
tojson(latestOptions));
assert.neq(
null,
GetIndexHelpers.findByKeyPattern(testDB[oldVersionCollection].getIndexes(), {a: 1}),
`index from ${oldVersionCollection} should be available; options: ` +
tojson(latestOptions));
}
// Create a new collection.
assert.commandWorked(testDB.createCollection(version.testCollection));
// Insert a document into the new collection.
assert.writeOK(testDB[version.testCollection].insert({a: 1}));
assert.eq(
1,
testDB[version.testCollection].count(),
`mongo should have inserted 1 document into collection ${version.testCollection}; ` +
'options: ' + tojson(latestOptions));
// Create an index on the new collection.
assert.commandWorked(testDB[version.testCollection].createIndex({a: 1}));
// Shutdown the current mongod.
MongoRunner.stopMongod(conn);
if (version.binVersion === "2.6" && changedAuthMechanism) {
TestData.authMechanism = "SCRAM-SHA-1";
DB.prototype._defaultAuthenticationMechanism = "SCRAM-SHA-1";
changedAuthMechanisms = false;
}
}
// Replica Sets
// Setup the ReplSetTest object.
let nodes = {
n1: {binVersion: versions[0].binVersion},
n2: {binVersion: versions[0].binVersion},
n3: {binVersion: versions[0].binVersion},
};
var changedAuthMechanisms = false;
if (TestData.authMechanism === "SCRAM-SHA-1" && versions[0].binVersion === "2.6") {
TestData.authMechanism = undefined;
DB.prototype._defaultAuthenticationMechanism = "MONGODB-CR";
changedAuthMechanism = true;
}
let rst = new ReplSetTest({nodes});
// Start up and initiate the replica set.
rst.startSet();
// ReplSetTest.stepUp() requires replSetGetConfig, which is not available in 2.6, so we
// use initiateWithAnyNodeAsPrimary() instead.
rst.initiateWithAnyNodeAsPrimary();
// Iterate from earliest to latest versions specified in the versions list, and follow the steps
// outlined at the top of this test file.
for (let i = 0; i < versions.length; i++) {
let version = versions[i];
rst.upgradeSet({binVersion: version.binVersion});
if (version.binVersion != "2.6" && changedAuthMechanism) {
TestData.authMechanism = "SCRAM-SHA-1";
DB.prototype._defaultAuthenticationMechanism = "SCRAM-SHA-1";
changedAuthMechanisms = false;
}
// Connect to the primary to ensure that the test can insert and create indices.
let conn = rst.getPrimary();
assert.neq(
null, conn, `replica set was unable to start up with version: ${version.binVersion}`);
assert.binVersion(conn, version.binVersion);
// Connect to the 'test' database.
let testDB = conn.getDB('test');
// Verify that the data and indices from previous iterations are still accessible.
for (let j = 0; j < i; j++) {
let oldVersionCollection = versions[j].testCollection;
assert.eq(
1,
testDB[oldVersionCollection].count(),
`data from ${oldVersionCollection} should be available; nodes: ${tojson(nodes)}`);
assert.neq(
null,
GetIndexHelpers.findByKeyPattern(testDB[oldVersionCollection].getIndexes(), {a: 1}),
`index from ${oldVersionCollection} should be available; nodes: ${tojson(nodes)}`);
}
// Create a new collection.
assert.commandWorked(testDB.createCollection(version.testCollection));
// Insert a document into the new collection.
assert.writeOK(testDB[version.testCollection].insert({a: 1}));
assert.eq(
1,
testDB[version.testCollection].count(),
`mongo should have inserted 1 document into collection ${version.testCollection}; ` +
'nodes: ' + tojson(nodes));
// Create an index on the new collection.
assert.commandWorked(testDB[version.testCollection].createIndex({a: 1}));
}
// Stop the replica set.
rst.stopSet();
})();
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