SERVER-54965 Flag to disable clustering by _id on time-series collections

1 files changed, 30 insertions, 0 deletions

diff --git a/jstests/noPassthrough/timeseries_server_parameters.js b/jstests/noPassthrough/timeseries_server_parameters.js
index a2c87c9617b..de975c93f21 100644
--- a/jstests/noPassthrough/timeseries_server_parameters.js
+++ b/jstests/noPassthrough/timeseries_server_parameters.js
@@ -3,8 +3,38 @@
 (function() {
 'use strict';
 
+load("jstests/core/timeseries/libs/timeseries.js");
 load("jstests/noPassthrough/libs/server_parameter_helpers.js");
 
+// Test that collection clustering can be disabled on the buckets collection, and that it behaves
+// correctly in a replicated environment.
+(() => {
+    const replSet = new ReplSetTest({
+        nodes: 2,
+        nodeOptions: {setParameter: {timeseriesBucketsCollectionClusterById: false}},
+    });
+    replSet.startSet();
+    replSet.initiate();
+
+    const primary = replSet.getPrimary();
+    if (!TimeseriesTest.timeseriesCollectionsEnabled(primary)) {
+        jsTestLog("Skipping test case because time-series collections are not enabled.");
+        replSet.stopSet();
+        return;
+    }
+
+    const testDB = primary.getDB('test');
+    assert.commandWorked(testDB.createCollection('ts', {timeseries: {timeField: 'time'}}));
+    testDB.ts.insert({time: new Date()});
+
+    let res = assert.commandWorked(
+        testDB.runCommand({listCollections: 1, filter: {name: 'system.buckets.ts'}}));
+    let options = res.cursor.firstBatch[0].options;
+    assert(!options.clusteredIndex);
+
+    replSet.stopSet();
+})();
+
 // Valid parameter values are in the range [0, infinity).
 testNumericServerParameter('timeseriesBucketMaxCount',
                            true /*isStartupParameter*/,