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/**
* Initial sync runs in several phases - the first 3 are as follows:
* 1) fetches the last oplog entry (op_start1) on the source;
* 2) copies all non-local databases from the source; and
* 3) fetches and applies operations from the source after op_start1.
*
* This test updates and deletes a document on the source between phases 1 and 2 in a prepared
* transaction. The secondary will fail to apply the update operation in phase 3 but initial sync
* completes nevertheless.
*
* @tags: [
* uses_prepare_transaction,
* uses_transactions,
* ]
*/
(function() {
load("jstests/core/txns/libs/prepare_helpers.js");
load("jstests/replsets/libs/initial_sync_update_missing_doc.js");
function doTest(doTransactionWork, numDocuments) {
const replSet = new ReplSetTest({nodes: 1});
replSet.startSet();
replSet.initiate();
const primary = replSet.getPrimary();
const dbName = 'test';
const collectionName = jsTestName();
let coll = primary.getDB(dbName).getCollection(collectionName);
assert.commandWorked(coll.insert({_id: 0, x: 1}));
assert.commandWorked(coll.insert({_id: 1, x: 1}));
// Add a secondary node with priority: 0 and votes: 0 so that we prevent elections while
// it is syncing from the primary.
const secondaryConfig = {rsConfig: {votes: 0, priority: 0}};
const secondary = reInitiateSetWithSecondary(replSet, secondaryConfig);
const session = primary.startSession();
const sessionDB = session.getDatabase(dbName);
const sessionColl = sessionDB.getCollection(collectionName);
session.startTransaction();
doTransactionWork(sessionColl, {_id: 0});
const prepareTimestamp = PrepareHelpers.prepareTransaction(session);
assert.commandWorked(PrepareHelpers.commitTransaction(session, prepareTimestamp));
// This transaction is eventually aborted, so this document should exist on the secondary
// after initial sync.
session.startTransaction();
doTransactionWork(sessionColl, {_id: 1});
PrepareHelpers.prepareTransaction(session);
assert.commandWorked(session.abortTransaction_forTesting());
turnOffHangBeforeCopyingDatabasesFailPoint(secondary);
// Since we aborted the second transaction, we expect this collection to still exist after
// initial sync.
finishAndValidate(replSet, collectionName, numDocuments);
// Make sure the secondary has the correct documents after syncing from the primary. The
// second document was deleted in the prepared transaction that was aborted. Therefore, it
// should have been properly replication.
coll = secondary.getDB(dbName).getCollection(collectionName);
assert.docEq(null, coll.findOne({_id: 0}), 'document on secondary matches primary');
assert.docEq({_id: 1, x: 1}, coll.findOne({_id: 1}), 'document on secondary matches primary');
replSet.stopSet();
}
jsTestLog("Testing with prepared transaction");
// Passing in a function to update and remove document on primary in a prepared transaction
// between phrase 1 and 2. Once the secondary receives the commit for the transaction, the
// secondary should apply each operation separately (one update, and one delete) during initial
// sync.
doTest(updateRemove, 1 /* numDocuments after initial sync */);
jsTestLog("Testing with large prepared transaction");
// Passing in a function to insert, update and remove large documents on primary in a large
// prepared transaction. Once the secondary receives the commit for the transaction, the
// secondary should apply each operation separately (one insert, one update, and one delete)
// during initial sync.
doTest(insertUpdateRemoveLarge, 2 /* numDocuments after initial sync */);
})();
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