1 files changed, 0 insertions, 91 deletions
diff --git a/jstests/multiVersion/global_snapshot_reads_downgrade_cluster.js b/jstests/multiVersion/global_snapshot_reads_downgrade_cluster.js
deleted file mode 100644
index 9dfdaa7c8a0..00000000000
--- a/jstests/multiVersion/global_snapshot_reads_downgrade_cluster.js
+++ /dev/null
@@ -1,91 +0,0 @@
-/**
- * Test the downgrade of a sharded cluster from latest to last-stable version succeeds, verifying
- * the behavior of global snapshot reads throughout the process.
- */
-
-// Checking UUID consistency uses cached connections, which are not valid across restarts or
-// stepdowns.
-TestData.skipCheckingUUIDsConsistentAcrossCluster = true;
-
-(function() {
-    "use strict";
-
-    load("jstests/libs/feature_compatibility_version.js");
-    load("jstests/multiVersion/libs/multi_rs.js");
-    load("jstests/multiVersion/libs/multi_cluster.js");
-    load("jstests/multiVersion/libs/global_snapshot_reads_helpers.js");
-
-    if (!supportsSnapshotReadConcern()) {
-        jsTestLog("Skipping test since storage engine doesn't support snapshot read concern.");
-        return;
-    }
-
-    // Start a cluster with two shards and two mongos at the latest version.
-    var st = new ShardingTest({
-        shards: 2,
-        mongos: 2,
-        other: {
-            mongosOptions: {binVersion: "latest"},
-            configOptions: {binVersion: "latest"},
-            rsOptions: {binVersion: "latest"},
-        },
-        rs: {nodes: 3}  // Use 3 node replica sets to allow downgrades with no downtime.
-    });
-    checkFCV(st.configRS.getPrimary().getDB("admin"), latestFCV);
-
-    // Setup a sharded collection with two chunks, one on each shard.
-    assert.commandWorked(st.s.adminCommand({enableSharding: "shardedDb"}));
-    st.ensurePrimaryShard("shardedDb", st.shard0.shardName);
-    assert.commandWorked(st.s.adminCommand({shardCollection: "shardedDb.sharded", key: {x: 1}}));
-    assert.commandWorked(st.s.adminCommand({split: "shardedDb.sharded", middle: {x: 0}}));
-    assert.commandWorked(
-        st.s.adminCommand({moveChunk: "shardedDb.sharded", find: {x: 1}, to: st.shard1.shardName}));
-
-    // Insert some data for the reads to find.
-    st.s.getDB("unshardedDb").unsharded.insert({x: 1});
-    st.s.getDB("shardedDb").sharded.insert([{x: -1}, {x: 1}]);
-
-    // Global snapshot reads are accepted.
-    verifyGlobalSnapshotReads(st.s0, true);
-    verifyGlobalSnapshotReads(st.s1, true);
-
-    // Downgrade featureCompatibilityVersion to 3.6.
-    assert.commandWorked(st.s.adminCommand({setFeatureCompatibilityVersion: lastStableFCV}));
-    checkFCV(st.configRS.getPrimary().getDB("admin"), lastStableFCV);
-
-    // Global snapshot reads are accepted.
-    verifyGlobalSnapshotReads(st.s0, true);
-    verifyGlobalSnapshotReads(st.s1, true);
-
-    // Downgrade the mongos servers first.
-    jsTest.log("Downgrading mongos servers.");
-    st.upgradeCluster("last-stable",
-                      {upgradeConfigs: false, upgradeMongos: true, upgradeShards: false});
-
-    // Global snapshot reads are rejected with InvalidOptions, because downgraded mongos will not
-    // forward the txnNumber to the shards.
-    verifyGlobalSnapshotReads(st.s0, false, ErrorCodes.InvalidOptions);
-    verifyGlobalSnapshotReads(st.s1, false, ErrorCodes.InvalidOptions);
-
-    // Then downgrade the shard servers.
-    jsTest.log("Downgrading shard servers.");
-    st.upgradeCluster("last-stable",
-                      {upgradeConfigs: false, upgradeMongos: false, upgradeShards: true});
-
-    // Global snapshot reads are rejected with FailedToParse, because the shards will reject the
-    // unknown readConcern field.
-    verifyGlobalSnapshotReads(st.s0, false, ErrorCodes.FailedToParse);
-    verifyGlobalSnapshotReads(st.s1, false, ErrorCodes.FailedToParse);
-
-    // Finally, downgrade the config servers.
-    jsTest.log("Downgrading config servers.");
-    st.upgradeCluster("last-stable",
-                      {upgradeConfigs: true, upgradeMongos: false, upgradeShards: false});
-
-    // Global snapshot reads are rejected with FailedToParse, because the shards will reject the
-    // unknown readConcern field.
-    verifyGlobalSnapshotReads(st.s0, false, ErrorCodes.FailedToParse);
-    verifyGlobalSnapshotReads(st.s1, false, ErrorCodes.FailedToParse);
-
-    st.stop();
-})();