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/**
* Tests that the cluster cannot be downgraded when there are secondary indexes on time-series
* measurements present. Additionally, this verifies that only indexes that are incompatible for
* downgrade have the "originalSpec" field present on the buckets index definition.
*
* TODO SERVER-60912: Remove this test once kLastLTS is 6.0.
*/
(function() {
"use strict";
load("jstests/core/timeseries/libs/timeseries.js");
const conn = MongoRunner.runMongod();
const db = conn.getDB("test");
if (!TimeseriesTest.timeseriesMetricIndexesEnabled(db.getMongo())) {
jsTestLog(
"Skipped test as the featureFlagTimeseriesMetricIndexes feature flag is not enabled.");
MongoRunner.stopMongod(conn);
return;
}
const collName = "timeseries_measurement_indexes_downgrade";
const coll = db.getCollection(collName);
const bucketsColl = db.getCollection("system.buckets." + collName);
const timeFieldName = "tm";
const metaFieldName = "mm";
assert.commandWorked(db.createCollection("regular"));
assert.commandWorked(db.createCollection("system.buckets.abc"));
assert.commandWorked(db.createCollection(
coll.getName(), {timeseries: {timeField: timeFieldName, metaField: metaFieldName}}));
function checkIndexForDowngrade(withFCV, isCompatible, createdOnBucketsCollection) {
const index = bucketsColl.getIndexes()[0];
if (isCompatible) {
// All time-series indexes are downgrade compatible to the last continuous FCV as of v5.3.
if (withFCV != lastContinuousFCV) {
assert(!index.hasOwnProperty("originalSpec"));
}
} else {
if (createdOnBucketsCollection) {
// Indexes created directly on the buckets collection do not have the original user
// index definition.
assert(!index.hasOwnProperty("originalSpec"));
} else {
assert(index.hasOwnProperty("originalSpec"));
}
assert.commandFailedWithCode(db.adminCommand({setFeatureCompatibilityVersion: withFCV}),
ErrorCodes.CannotDowngrade);
assert.commandWorked(coll.dropIndexes("*"));
}
assert.commandWorked(db.adminCommand({setFeatureCompatibilityVersion: withFCV}));
assert.commandWorked(db.adminCommand({setFeatureCompatibilityVersion: latestFCV}));
assert.commandWorked(coll.dropIndexes("*"));
}
assert.commandWorked(coll.createIndex({[timeFieldName]: 1}));
checkIndexForDowngrade(lastLTSFCV, true, false);
assert.commandWorked(coll.createIndex({[timeFieldName]: 1}));
checkIndexForDowngrade(lastContinuousFCV, true, false);
assert.commandWorked(coll.createIndex({[metaFieldName]: 1}));
checkIndexForDowngrade(lastLTSFCV, true, false);
assert.commandWorked(coll.createIndex({[metaFieldName]: 1}));
checkIndexForDowngrade(lastContinuousFCV, true, false);
assert.commandWorked(coll.createIndex({[metaFieldName]: 1, a: 1}));
checkIndexForDowngrade(lastLTSFCV, false, false);
assert.commandWorked(coll.createIndex({[metaFieldName]: 1, a: 1}));
checkIndexForDowngrade(lastContinuousFCV, true, false);
assert.commandWorked(coll.createIndex({b: 1}));
checkIndexForDowngrade(lastLTSFCV, false, false);
assert.commandWorked(coll.createIndex({b: 1}));
checkIndexForDowngrade(lastContinuousFCV, true, false);
assert.commandWorked(bucketsColl.createIndex({"control.min.c.d": 1, "control.max.c.d": 1}));
checkIndexForDowngrade(lastLTSFCV, false, true);
assert.commandWorked(bucketsColl.createIndex({"control.min.c.d": 1, "control.max.c.d": 1}));
checkIndexForDowngrade(lastContinuousFCV, true, true);
assert.commandWorked(bucketsColl.createIndex({"control.min.e": 1, "control.min.f": 1}));
checkIndexForDowngrade(lastLTSFCV, false, true);
assert.commandWorked(bucketsColl.createIndex({"control.min.e": 1, "control.min.f": 1}));
checkIndexForDowngrade(lastContinuousFCV, true, true);
assert.commandWorked(coll.createIndex({g: "2dsphere"}));
checkIndexForDowngrade(lastLTSFCV, false, false);
assert.commandWorked(coll.createIndex({g: "2dsphere"}));
checkIndexForDowngrade(lastContinuousFCV, true, false);
assert.commandWorked(coll.createIndex({[metaFieldName]: "2d"}));
checkIndexForDowngrade(lastLTSFCV, true, false);
assert.commandWorked(coll.createIndex({[metaFieldName]: "2d"}));
checkIndexForDowngrade(lastContinuousFCV, true, false);
assert.commandWorked(coll.createIndex({[metaFieldName]: "2dsphere"}));
checkIndexForDowngrade(lastLTSFCV, true, false);
assert.commandWorked(coll.createIndex({[metaFieldName]: "2dsphere"}));
checkIndexForDowngrade(lastContinuousFCV, true, false);
// Partial indexes are not supported in versions earlier than v5.2.
assert.commandWorked(
coll.createIndex({[timeFieldName]: 1}, {partialFilterExpression: {x: {$gt: 5}}}));
checkIndexForDowngrade(lastLTSFCV, false, false);
assert.commandWorked(
coll.createIndex({[timeFieldName]: 1}, {partialFilterExpression: {x: {$gt: 5}}}));
checkIndexForDowngrade(lastContinuousFCV, true, false);
assert.commandWorked(
coll.createIndex({[metaFieldName]: 1}, {partialFilterExpression: {x: {$gt: 5}}}));
checkIndexForDowngrade(lastLTSFCV, false, false);
assert.commandWorked(
coll.createIndex({[metaFieldName]: 1}, {partialFilterExpression: {x: {$gt: 5}}}));
checkIndexForDowngrade(lastContinuousFCV, true, false);
assert.commandWorked(coll.createIndex({x: 1}, {partialFilterExpression: {x: {$gt: 5}}}));
checkIndexForDowngrade(lastLTSFCV, false, false);
assert.commandWorked(coll.createIndex({x: 1}, {partialFilterExpression: {x: {$gt: 5}}}));
checkIndexForDowngrade(lastContinuousFCV, true, false);
assert.commandWorked(
coll.createIndex({[metaFieldName]: 1, x: 1}, {partialFilterExpression: {x: {$gt: 5}}}));
checkIndexForDowngrade(lastLTSFCV, false, false);
assert.commandWorked(
coll.createIndex({x: 1, [metaFieldName]: 1}, {partialFilterExpression: {x: {$gt: 5}}}));
checkIndexForDowngrade(lastContinuousFCV, true, false);
MongoRunner.stopMongod(conn);
}());
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