From da663d32d6f62d0ca48e1944fda8b3abe362b0cd Mon Sep 17 00:00:00 2001
From: Vesselina Ratcheva <vesselina.ratcheva@10gen.com>
Date: Mon, 5 Apr 2021 17:19:00 +0000
Subject: SERVER-53563 Cancel tenant migrations on FCV change (donor side)

---
 .../tenant_migration_donor_abort_on_fcv_change.js  | 70 ++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 jstests/multiVersion/genericSetFCVUsage/tenant_migration_donor_abort_on_fcv_change.js

(limited to 'jstests')

diff --git a/jstests/multiVersion/genericSetFCVUsage/tenant_migration_donor_abort_on_fcv_change.js b/jstests/multiVersion/genericSetFCVUsage/tenant_migration_donor_abort_on_fcv_change.js
new file mode 100644
index 00000000000..0e958568cc9
--- /dev/null
+++ b/jstests/multiVersion/genericSetFCVUsage/tenant_migration_donor_abort_on_fcv_change.js
@@ -0,0 +1,70 @@
+/**
+ * Tests that the donor cancels all migrations when its FCV changes.
+ * @tags: [requires_majority_read_concern, incompatible_with_windows_tls]
+ */
+
+(function() {
+"use strict";
+
+load("jstests/libs/fail_point_util.js");
+load("jstests/libs/uuid_util.js");       // for 'extractUUIDFromObject'
+load("jstests/libs/parallelTester.js");  // for 'Thread'
+load("jstests/replsets/rslib.js");       // for 'setLogVerbosity'
+load("jstests/replsets/libs/tenant_migration_test.js");
+load("jstests/replsets/libs/tenant_migration_util.js");
+
+const tenantMigrationTest = new TenantMigrationTest({name: jsTestName()});
+if (!tenantMigrationTest.isFeatureFlagEnabled()) {
+    jsTestLog("Skipping test because the tenant migrations feature flag is disabled");
+    return;
+}
+
+const tenantId = "testTenantId";
+const dbName = tenantMigrationTest.tenantDB(tenantId, "testDB");
+const collName = "testColl";
+
+const donorRst = tenantMigrationTest.getDonorRst();
+const donorPrimary = tenantMigrationTest.getDonorPrimary();
+const donorDB = donorPrimary.getDB(dbName);
+
+setLogVerbosity([donorPrimary], {"tenantMigration": {"verbosity": 3}});
+
+tenantMigrationTest.insertDonorDB(dbName, collName);
+
+const migrationId = UUID();
+const migrationIdString = extractUUIDFromObject(migrationId);
+const migrationOpts = {
+    migrationIdString: migrationIdString,
+    recipientConnString: tenantMigrationTest.getRecipientConnString(),
+    tenantId: tenantId,
+};
+
+const hangWhileMigratingFP =
+    configureFailPoint(donorDB, "pauseTenantMigrationBeforeLeavingAbortingIndexBuildsState");
+
+// Start a migration and wait for donor to hang at the failpoint.
+assert.commandWorked(tenantMigrationTest.startMigration(migrationOpts));
+
+hangWhileMigratingFP.wait();
+
+// Initiate a downgrade and let it complete.
+assert.commandWorked(
+    donorPrimary.adminCommand({setFeatureCompatibilityVersion: lastContinuousFCV}));
+
+// Upgrade again and finish the test.
+assert.commandWorked(donorPrimary.adminCommand({setFeatureCompatibilityVersion: latestFCV}));
+
+hangWhileMigratingFP.off();
+
+const stateRes =
+    assert.commandWorked(tenantMigrationTest.waitForMigrationToComplete(migrationOpts));
+assert.eq(stateRes.state, TenantMigrationTest.DonorState.kAborted);
+assert.eq(stateRes.abortReason.code, ErrorCodes.TenantMigrationAborted);
+
+tenantMigrationTest.waitForDonorNodesToReachState(
+    donorRst.nodes, migrationId, tenantId, TenantMigrationTest.DonorState.kAborted);
+
+assert.commandWorked(tenantMigrationTest.forgetMigration(migrationOpts.migrationIdString));
+
+tenantMigrationTest.stop();
+})();
\ No newline at end of file
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