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"use strict";
load("jstests/libs/fail_point_util.js");
/**
* 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 library is used to delete documents on the sync source between the first two phases so
* that the secondary will fail to apply the update operation in phase three.
*/
// reInitiate the replica set with a secondary node, which will go through initial sync. This
// function will hang the secondary in initial sync. turnOffHangBeforeCopyingDatabasesFailPoint
// must be called after reInitiateSetWithSecondary.
var reInitiateSetWithSecondary = function(replSet, secondaryConfig) {
const secondary = replSet.add(secondaryConfig);
secondary.setSecondaryOk();
// Make the secondary hang after retrieving the last op on the sync source but before
// copying databases.
let failPoint = configureFailPoint(secondary, 'initialSyncHangBeforeCopyingDatabases');
// Skip clearing initial sync progress after a successful initial sync attempt so that we
// can check initialSyncStatus fields after initial sync is complete.
assert.commandWorked(secondary.adminCommand(
{configureFailPoint: 'skipClearInitialSyncState', mode: 'alwaysOn'}));
replSet.reInitiate();
// Wait for fail point message to be logged.
failPoint.wait();
return secondary;
};
// Must be called after reInitiateSetWithSecondary. Turns off the
// initialSyncHangBeforeCopyingDatabases fail point so that the secondary will start copying all
// non-local databases.
var turnOffHangBeforeCopyingDatabasesFailPoint = function(secondary) {
assert.commandWorked(secondary.getDB('admin').runCommand(
{configureFailPoint: 'initialSyncHangBeforeCopyingDatabases', mode: 'off'}));
};
var finishAndValidate = function(replSet, name, numDocuments) {
replSet.awaitReplication();
replSet.awaitSecondaryNodes();
const dbName = 'test';
const primary = replSet.getPrimary();
const primaryCollection = primary.getDB(dbName).getCollection(name);
const secondary = replSet.getSecondary();
const secondaryCollection = secondary.getDB(dbName).getCollection(name);
if (numDocuments != secondaryCollection.find().itcount()) {
jsTestLog(`Mismatch, primary collection: ${tojson(primaryCollection.find().toArray())}
secondary collection: ${tojson(secondaryCollection.find().toArray())}`);
throw new Error('Did not sync collection');
}
assert.eq(0,
secondary.getDB('local')['temp_oplog_buffer'].find().itcount(),
"Oplog buffer was not dropped after initial sync");
};
var updateRemove = function(sessionColl, query) {
assert.commandWorked(sessionColl.update(query, {x: 2}, {upsert: false}));
assert.commandWorked(sessionColl.remove(query, {justOne: true}));
};
var insertUpdateRemoveLarge = function(sessionColl, query) {
const kSize10MB = 10 * 1024 * 1024;
const longString = "a".repeat(kSize10MB);
assert.commandWorked(sessionColl.insert({x: longString}));
assert.commandWorked(sessionColl.update(query, {x: longString}, {upsert: false}));
assert.commandWorked(sessionColl.remove(query, {justOne: true}));
};
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