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/**
* Tests that starting a migration fails if the donor and recipient do not share the same FCV.
* @tags: [requires_majority_read_concern, requires_fcv_49, 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/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 donorPrimary = tenantMigrationTest.getDonorPrimary();
const recipientPrimary = tenantMigrationTest.getRecipientPrimary();
tenantMigrationTest.insertDonorDB(dbName, collName);
const migrationId = UUID();
const migrationOpts = {
migrationIdString: extractUUIDFromObject(migrationId),
recipientConnString: tenantMigrationTest.getRecipientConnString(),
tenantId: tenantId,
};
// Configure a failpoint to have the recipient primary hang after taking note of its FCV
// and before comparing it with that of the donor.
const recipientDB = recipientPrimary.getDB(dbName);
const hangAfterSavingFCV = configureFailPoint(
recipientDB, "fpAfterRecordingRecipientPrimaryStartingFCV", {action: "hang"});
// Start a migration and wait for recipient to hang at the failpoint.
assert.commandWorked(tenantMigrationTest.startMigration(migrationOpts));
hangAfterSavingFCV.wait();
// Downgrade the FCV for the donor set and resume migration.
assert.commandWorked(
donorPrimary.adminCommand({setFeatureCompatibilityVersion: lastContinuousFCV}));
hangAfterSavingFCV.off();
// Make sure we see the FCV mismatch detection message on the recipient.
checkLog.containsJson(recipientPrimary, 5382300);
// Upgrade again to check on the status of the migration from the donor's point of view.
assert.commandWorked(donorPrimary.adminCommand({setFeatureCompatibilityVersion: latestFCV}));
const stateRes =
assert.commandWorked(tenantMigrationTest.waitForMigrationToComplete(migrationOpts));
assert.eq(stateRes.state, TenantMigrationTest.State.kAborted);
tenantMigrationTest.stop();
})();
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