60 lines
2.2 KiB
JavaScript
60 lines
2.2 KiB
JavaScript
/**
|
|
* Test that we can successfully commit a prepared transaction before the stable timestamp.
|
|
*
|
|
* @tags: [uses_transactions, uses_prepare_transaction]
|
|
*/
|
|
|
|
(function() {
|
|
"use strict";
|
|
load("jstests/aggregation/extras/utils.js");
|
|
load("jstests/core/txns/libs/prepare_helpers.js");
|
|
|
|
const replTest = new ReplSetTest({nodes: 1});
|
|
replTest.startSet();
|
|
replTest.initiate();
|
|
|
|
const primary = replTest.getPrimary();
|
|
|
|
const dbName = "test";
|
|
const collName = "commit_prepared_transaction_before_stable_timestamp";
|
|
const testDB = primary.getDB(dbName);
|
|
const testColl = testDB.getCollection(collName);
|
|
|
|
assert.commandWorked(testDB.runCommand({create: collName}));
|
|
|
|
// Make sure there is no lag between the oldest timestamp and the stable timestamp so we can
|
|
// test that committing a prepared transaction behind the oldest timestamp succeeds.
|
|
assert.commandWorked(primary.adminCommand({
|
|
"configureFailPoint": 'WTSetOldestTSToStableTS',
|
|
"mode": 'alwaysOn',
|
|
}));
|
|
|
|
const session = primary.startSession({causalConsistency: false});
|
|
const sessionDB = session.getDatabase(dbName);
|
|
const sessionColl = sessionDB.getCollection(collName);
|
|
|
|
session.startTransaction();
|
|
assert.commandWorked(sessionColl.insert({_id: 1}));
|
|
const prepareTimestamp = PrepareHelpers.prepareTransaction(session);
|
|
|
|
jsTestLog("Do a majority write to advance the stable timestamp past the prepareTimestamp");
|
|
// Doing a majority write after preparing the transaction ensures that the stable timestamp is
|
|
// past the prepare timestamp because this write must be in the committed snapshot.
|
|
assert.commandWorked(
|
|
testColl.runCommand("insert", {documents: [{_id: 2}]}, {writeConcern: {w: "majority"}}));
|
|
|
|
jsTestLog("Committing the transaction before the stable timestamp");
|
|
|
|
// Since we have advanced the stableTimestamp to be after the prepareTimestamp, when we commit
|
|
// at the prepareTimestamp, we are certain that we are committing behind the stableTimestamp.
|
|
assert.commandWorked(PrepareHelpers.commitTransaction(session, prepareTimestamp));
|
|
|
|
// Make sure we can see the insert from the prepared transaction.
|
|
assert.sameMembers(sessionColl.find().toArray(), [{_id: 1}, {_id: 2}]);
|
|
|
|
assert.commandWorked(
|
|
primary.adminCommand({configureFailPoint: 'WTSetOldestTSToStableTS', mode: 'off'}));
|
|
|
|
replTest.stopSet();
|
|
}());
|