74 lines
3.2 KiB
JavaScript
74 lines
3.2 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. The
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* secondary will initially fail to apply the update operation in phase 3 and subsequently have
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* to attempt to check the source for a new copy of the document. Before the secondary checks the
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* source, we insert a new copy of the document into this collection on the source and mark the
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* collection on which the document to be fetched resides as drop pending, thus effectively
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* renaming the collection but preserving the UUID. This ensures the secondary fetches the
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* document by UUID rather than namespace.
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*/
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(function() {
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load("jstests/libs/check_log.js");
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load("jstests/replsets/libs/initial_sync_update_missing_doc.js");
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load("jstests/replsets/libs/two_phase_drops.js"); // For TwoPhaseDropCollectionTest.
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var name = 'initial_sync_update_missing_doc3';
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var 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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// Check for 'system.drop' two phase drop support.
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if (!TwoPhaseDropCollectionTest.supportsDropPendingNamespaces(replSet)) {
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jsTestLog('Drop pending namespaces not supported by storage engine. Skipping test.');
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replSet.stopSet();
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return;
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}
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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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// Add a secondary node with priority: 0 so that we prevent elections while it is syncing
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// from the primary.
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// We cannot give the secondary votes: 0 because then it will not be able to acknowledge
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// majority writes. That means the sync source can immediately drop it's collection
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// because it alone determines the majority commit point.
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const secondaryConfig = {rsConfig: {priority: 0}};
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const secondary = reInitiateSetWithSecondary(replSet, secondaryConfig);
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// Update and remove document on primary.
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assert.commandWorked(coll.update({_id: 0}, {x: 2}, {upsert: false}));
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assert.commandWorked(coll.remove({_id: 0}, {justOne: true}));
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turnOffHangBeforeCopyingDatabasesFailPoint(secondary);
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// Re-insert deleted document.
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assert.commandWorked(coll.insert({_id: 0, x: 3}));
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// Mark the collection as drop pending so it gets renamed, but retains the UUID.
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assert.commandWorked(primary.getDB('test').runCommand({"drop": name}));
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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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secondary.getDB('test').setLogLevel(1, 'replication');
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turnOffHangBeforeGettingMissingDocFailPoint(primary, secondary, name, 1);
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secondary.getDB('test').setLogLevel(0, 'replication');
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replSet.awaitReplication();
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replSet.awaitSecondaryNodes();
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replSet.stopSet();
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})();
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