91 lines
3.9 KiB
JavaScript
91 lines
3.9 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 on the source so that the secondary can fetch it.
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*/
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(function() {
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load("jstests/libs/check_log.js");
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var name = 'initial_sync_update_missing_doc2';
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var replSet = new ReplSetTest({
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name: name,
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nodes: [{}, {rsConfig: {arbiterOnly: true}}],
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});
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replSet.startSet();
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replSet.initiate();
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var primary = replSet.getPrimary();
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var coll = primary.getDB('test').getCollection(name);
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assert.writeOK(coll.insert({_id: 0, x: 1}));
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// Add a secondary node but make it hang after retrieving the last op on the source
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// but before copying databases.
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var secondary = replSet.add();
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secondary.setSlaveOk();
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assert.commandWorked(secondary.getDB('admin').runCommand(
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{configureFailPoint: 'initialSyncHangBeforeCopyingDatabases', mode: 'alwaysOn'}));
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assert.commandWorked(secondary.getDB('admin').runCommand(
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{configureFailPoint: 'initialSyncHangBeforeGettingMissingDocument', mode: 'alwaysOn'}));
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replSet.reInitiate();
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// Wait for fail point message to be logged.
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checkLog.contains(secondary,
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'initial sync - initialSyncHangBeforeCopyingDatabases fail point enabled');
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assert.writeOK(coll.update({_id: 0}, {x: 2}, {upsert: false, writeConcern: {w: 1}}));
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assert.writeOK(coll.remove({_id: 0}, {justOne: true, writeConcern: {w: 1}}));
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assert.commandWorked(secondary.getDB('admin').runCommand(
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{configureFailPoint: 'initialSyncHangBeforeCopyingDatabases', mode: 'off'}));
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checkLog.contains(secondary, 'update of non-mod failed');
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checkLog.contains(secondary, 'Fetching missing document');
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checkLog.contains(
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secondary, 'initial sync - initialSyncHangBeforeGettingMissingDocument fail point enabled');
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var doc = {_id: 0, x: 3};
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// Re-insert deleted document.
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assert.writeOK(coll.insert(doc, {writeConcern: {w: 1}}));
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var res = assert.commandWorked(secondary.adminCommand({replSetGetStatus: 1, initialSync: 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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assert.commandWorked(secondary.getDB('admin').runCommand(
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{configureFailPoint: 'initialSyncHangBeforeGettingMissingDocument', mode: 'off'}));
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checkLog.contains(secondary, 'Inserted missing document');
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secondary.getDB('test').setLogLevel(0, 'replication');
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checkLog.contains(secondary, 'initial sync done');
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replSet.awaitReplication();
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replSet.awaitSecondaryNodes();
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var coll = secondary.getDB('test').getCollection(name);
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assert.eq(1, coll.find().itcount(), 'collection successfully synced to secondary');
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assert.eq(doc, coll.findOne(), 'document on secondary matches primary');
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res = assert.commandWorked(secondary.adminCommand({replSetGetStatus: 1, initialSync: 1}));
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assert.eq(res.initialSyncStatus.fetchedMissingDocs, 1);
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var finalOplogEnd = res.initialSyncStatus.initialSyncOplogEnd;
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assert(!friendlyEqual(firstOplogEnd, finalOplogEnd),
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"minValid was not moved forward when missing document was fetched");
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assert.eq(0,
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secondary.getDB('local')['temp_oplog_buffer'].find().itcount(),
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"Oplog buffer was not dropped after initial sync");
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replSet.stopSet();
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})();
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