mirror of https://github.com/mongodb/mongo
92 lines
4.0 KiB
JavaScript
92 lines
4.0 KiB
JavaScript
/**
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* Tests that skip level upgrades from old binary versions to the latest binary version are both
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* not successful and do not corrupt anything to prevent correct binary version start up.
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*
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* For each binary version older than last-lts:
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* - Start a clean node of that version
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* - Create a new collection.
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* - Insert a document into the new collection.
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* - Create an index on the new collection.
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* - Benignly fail to upgrade to the latest version.
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* - Benignly fail to run --repair on the latest version.
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* - Successfully restart the node in the original version.
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* - Verify data files are intact.
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*
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* @tags: [requires_v4_0]
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*/
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import {IndexCatalogHelpers} from "jstests/libs/index_catalog_helpers.js";
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const dbpath = MongoRunner.dataPath + "skip_level_upgrade";
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resetDbpath(dbpath);
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// We set noCleanData to true in order to preserve the data files within an iteration.
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const defaultOptions = {
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dbpath: dbpath,
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noCleanData: true,
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};
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// This contains lists of LTS binary versions > 5.0 but < last-lts.
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// TODO SERVER-76166: Generate this list programmatically.
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//
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// Note: To support PIT truncate functionality, the on-disk data format has been changed,
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// which older versions (5.0 and below) cannot understand. This functionality is enabled
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// for MongoDB from version 8.0 onwards. So, illegal skip-level upgrades from version 5.0 and older
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// to version 8.0 or later would cause 8.0 (and later) to rewrite the older files to the newer
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// format, which older versions don't understand. This requires manual intervention for the user to
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// revert the database back to the older version. (See WT-12869 and WT-10307 for details). That's
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// the reason this test will test from 6.0+.
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const versions = [{binVersion: "6.0", testCollection: "six_zero"}];
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// Iterate through versions specified in the versions list, and follow the steps outlined at
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// the top of this test file.
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for (let i = 0; i < versions.length; i++) {
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let version = versions[i];
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let mongodOptions = Object.extend({binVersion: version.binVersion}, defaultOptions);
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// Start up an old binary version mongod.
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let conn = MongoRunner.runMongod(mongodOptions);
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let port = conn.port;
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assert.neq(null, conn, "mongod was unable able to start with version " + tojson(version.binVersion));
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// Set up a collection on an old binary version node with one document and an index, and
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// then shut it down.
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let testDB = conn.getDB("test");
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assert.commandWorked(testDB.createCollection(version.testCollection));
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assert.commandWorked(testDB[version.testCollection].insert({a: 1}));
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assert.commandWorked(testDB[version.testCollection].createIndex({a: 1}));
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MongoRunner.stopMongod(conn);
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// Restart the mongod with the latest binary version on the old version's data files.
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// Should fail due to being a skip level upgrade.
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mongodOptions = Object.extend({binVersion: "latest"}, defaultOptions);
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assert.throws(() => MongoRunner.runMongod(mongodOptions));
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// Restart the mongod with the latest version with --repair. Should fail due to being a
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// skip level upgrade.
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let returnCode = runMongoProgram("mongod", "--port", port, "--repair", "--dbpath", dbpath);
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assert.neq(returnCode, 0, "expected mongod --repair to fail with a skip level upgrade");
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// Restart the mongod in the originally specified version. Should succeed.
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mongodOptions = Object.extend({binVersion: version.binVersion}, defaultOptions);
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conn = MongoRunner.runMongod(mongodOptions);
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// Verify that the data and indices from previous iterations are still accessible.
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testDB = conn.getDB("test");
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assert.eq(
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1,
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testDB[version.testCollection].count(),
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`data from ${version.testCollection} should be available; options: ` + tojson(mongodOptions),
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);
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assert.neq(
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null,
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IndexCatalogHelpers.findByKeyPattern(testDB[version.testCollection].getIndexes(), {a: 1}),
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`index from ${version.testCollection} should be available; options: ` + tojson(mongodOptions),
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);
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MongoRunner.stopMongod(conn);
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resetDbpath(dbpath);
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}
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