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