mirror of https://gitee.com/bigwinds/arangodb
960 lines
26 KiB
JavaScript
960 lines
26 KiB
JavaScript
/* jshint globalstrict:false, strict:false, unused: false */
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/* global assertEqual, assertTrue, assertFalse, assertNull, assertNotNull, arango, ARGUMENTS */
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// //////////////////////////////////////////////////////////////////////////////
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// / @brief test the replication
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// /
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// / @file
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// /
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// / DISCLAIMER
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// /
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// / Copyright 2017 ArangoDB GmbH, Cologne, Germany
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// /
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// / Licensed under the Apache License, Version 2.0 (the "License");
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// / you may not use this file except in compliance with the License.
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// / You may obtain a copy of the License at
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// /
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// / http://www.apache.org/licenses/LICENSE-2.0
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// /
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// / Unless required by applicable law or agreed to in writing, software
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// / distributed under the License is distributed on an "AS IS" BASIS,
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// / WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// / See the License for the specific language governing permissions and
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// / limitations under the License.
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// /
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// / @author Simon Grätzer
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// //////////////////////////////////////////////////////////////////////////////
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var jsunity = require('jsunity');
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var arangodb = require('@arangodb');
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var db = arangodb.db;
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var replication = require('@arangodb/replication');
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const reconnectRetry = require('@arangodb/replication-common').reconnectRetry;
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var deriveTestSuite = require('@arangodb/test-helper').deriveTestSuite;
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let compareTicks = replication.compareTicks;
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var console = require('console');
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var internal = require('internal');
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var masterEndpoint = arango.getEndpoint();
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var slaveEndpoint = ARGUMENTS[0];
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const cn = 'UnitTestsReplication';
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const cn2 = 'UnitTestsReplication2';
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const connectToMaster = function () {
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reconnectRetry(masterEndpoint, db._name(), 'root', '');
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db._flushCache();
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};
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const connectToSlave = function () {
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reconnectRetry(slaveEndpoint, db._name(), 'root', '');
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db._flushCache();
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};
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const collectionChecksum = function (name) {
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var c = db._collection(name).checksum(true, true);
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return c.checksum;
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};
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const collectionCount = function (name) {
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return db._collection(name).count();
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};
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const compare = function (masterFunc, masterFunc2, slaveFuncOngoing, slaveFuncFinal, applierConfiguration) {
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var state = {};
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db._flushCache();
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masterFunc(state);
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connectToSlave();
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replication.applier.stop();
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replication.applier.forget();
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while (replication.applier.state().state.running) {
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internal.wait(0.1, false);
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}
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var syncResult = replication.sync({
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endpoint: masterEndpoint,
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username: 'root',
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password: '',
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verbose: true,
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includeSystem: false,
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keepBarrier: true
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});
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assertTrue(syncResult.hasOwnProperty('lastLogTick'));
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connectToMaster();
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masterFunc2(state);
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// use lastLogTick as of now
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state.lastLogTick = replication.logger.state().state.lastUncommittedLogTick;
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applierConfiguration = applierConfiguration || {};
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applierConfiguration.endpoint = masterEndpoint;
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applierConfiguration.username = 'root';
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applierConfiguration.password = '';
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applierConfiguration.force32mode = true;
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applierConfiguration.requireFromPresent = true;
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if (!applierConfiguration.hasOwnProperty('chunkSize')) {
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applierConfiguration.chunkSize = 16384;
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}
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connectToSlave();
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replication.applier.properties(applierConfiguration);
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replication.applier.start(syncResult.lastLogTick, syncResult.barrierId);
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var printed = false;
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var handled = false;
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while (true) {
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if (!handled) {
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var r = slaveFuncOngoing(state);
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if (r === 'wait') {
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// special return code that tells us to hang on
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internal.wait(0.5, false);
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continue;
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}
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handled = true;
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}
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var slaveState = replication.applier.state();
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if (slaveState.state.lastError.errorNum > 0) {
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console.topic('replication=error', 'slave has errored:', JSON.stringify(slaveState.state.lastError));
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break;
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}
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if (!slaveState.state.running) {
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console.topic('replication=error', 'slave is not running');
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break;
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}
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if ((compareTicks(slaveState.state.lastAppliedContinuousTick, state.lastLogTick) >= 0) ||
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(compareTicks(slaveState.state.lastProcessedContinuousTick, state.lastLogTick) >= 0)) {
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console.topic('replication=debug',
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'slave has caught up. state.lastLogTick:',
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state.lastLogTick,
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'slaveState.lastAppliedContinuousTick:',
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slaveState.state.lastAppliedContinuousTick,
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'slaveState.lastProcessedContinuousTick:',
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slaveState.state.lastProcessedContinuousTick);
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break;
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}
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if (!printed) {
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console.topic('replication=debug', 'waiting for slave to catch up');
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printed = true;
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}
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internal.wait(0.5, false);
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}
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internal.wait(1.0, false);
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db._flushCache();
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slaveFuncFinal(state);
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};
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// //////////////////////////////////////////////////////////////////////////////
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// / @brief Base Test Config. Identitical part for _system and other DB
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// //////////////////////////////////////////////////////////////////////////////
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function BaseTestConfig () {
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'use strict';
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return {
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// //////////////////////////////////////////////////////////////////////////////
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// / @brief test collection creation
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// //////////////////////////////////////////////////////////////////////////////
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testCreateCollection: function () {
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connectToMaster();
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compare(
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function (state) {
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},
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function (state) {
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db._create(cn);
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for (var i = 0; i < 100; ++i) {
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db._collection(cn).save({
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value: i
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});
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}
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internal.wal.flush(true, true);
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},
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function (state) {
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return true;
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},
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function (state) {
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assertTrue(db._collection(cn).count() === 100);
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}
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);
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},
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// //////////////////////////////////////////////////////////////////////////////
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// / @brief test collection dropping
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// //////////////////////////////////////////////////////////////////////////////
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testDropCollection: function () {
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connectToMaster();
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compare(
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function (state) {
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},
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function (state) {
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db._create(cn);
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for (var i = 0; i < 100; ++i) {
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db._collection(cn).save({
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value: i
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});
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}
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db._drop(cn);
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internal.wal.flush(true, true);
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},
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function (state) {
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return true;
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},
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function (state) {
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assertNull(db._collection(cn));
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}
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);
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},
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// //////////////////////////////////////////////////////////////////////////////
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// / @brief test index creation
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// //////////////////////////////////////////////////////////////////////////////
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testCreateIndex: function () {
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connectToMaster();
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compare(
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function (state) {
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},
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function (state) {
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db._create(cn);
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db._collection(cn).ensureIndex({
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type: 'hash',
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fields: ['value']
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});
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},
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function (state) {
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return true;
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},
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function (state) {
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var col = db._collection(cn);
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assertNotNull(col, 'collection does not exist');
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var idx = col.getIndexes();
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assertEqual(2, idx.length);
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assertEqual('primary', idx[0].type);
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assertEqual('hash', idx[1].type);
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assertEqual(['value'], idx[1].fields);
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}
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);
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},
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// //////////////////////////////////////////////////////////////////////////////
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// / @brief test index dropping
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// //////////////////////////////////////////////////////////////////////////////
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testDropIndex: function () {
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connectToMaster();
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compare(
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function (state) {
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},
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function (state) {
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db._create(cn);
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var idx = db._collection(cn).ensureIndex({
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type: 'hash',
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fields: ['value']
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});
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db._collection(cn).dropIndex(idx);
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},
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function (state) {
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return true;
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},
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function (state) {
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var idx = db._collection(cn).getIndexes();
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assertEqual(1, idx.length);
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assertEqual('primary', idx[0].type);
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}
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);
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},
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// //////////////////////////////////////////////////////////////////////////////
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// / @brief test renaming
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// //////////////////////////////////////////////////////////////////////////////
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testRenameCollection: function () {
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connectToMaster();
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compare(
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function (state) {
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},
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function (state) {
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db._create(cn);
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db._collection(cn).rename(cn + 'Renamed');
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},
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function (state) {
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return true;
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},
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function (state) {
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assertNull(db._collection(cn));
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assertNotNull(db._collection(cn + 'Renamed'));
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}
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);
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},
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// //////////////////////////////////////////////////////////////////////////////
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// / @brief test renaming
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// //////////////////////////////////////////////////////////////////////////////
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testChangeCollection: function () {
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connectToMaster();
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compare(
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function (state) {
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},
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function (state) {
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db._create(cn);
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assertFalse(db._collection(cn).properties().waitForSync);
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db._collection(cn).properties({ waitForSync: true });
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},
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function (state) {
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return true;
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},
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function (state) {
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assertTrue(db._collection(cn).properties().waitForSync);
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}
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);
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},
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// //////////////////////////////////////////////////////////////////////////////
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// / @brief test insert
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// //////////////////////////////////////////////////////////////////////////////
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testInsert: function () {
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connectToMaster();
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compare(
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function (state) {
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db._create(cn);
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},
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function (state) {
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for (let i = 0; i < 1000; ++i) {
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db[cn].insert({
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_key: 'test' + i,
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value: i
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});
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}
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state.checksum = collectionChecksum(cn);
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state.count = collectionCount(cn);
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assertEqual(1000, state.count);
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},
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function (state) {
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},
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function (state) {
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assertEqual(state.count, collectionCount(cn));
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assertEqual(state.checksum, collectionChecksum(cn));
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}
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);
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},
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// //////////////////////////////////////////////////////////////////////////////
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// / @brief test remove
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// //////////////////////////////////////////////////////////////////////////////
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testRemove: function () {
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connectToMaster();
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compare(
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function (state) {
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db._create(cn);
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},
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function (state) {
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for (let i = 0; i < 1000; ++i) {
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db[cn].insert({
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_key: 'test' + i,
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value: i
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});
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}
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for (let i = 0; i < 100; ++i) {
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db[cn].remove('test' + i);
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}
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state.checksum = collectionChecksum(cn);
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state.count = collectionCount(cn);
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assertEqual(900, state.count);
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},
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function (state) {
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},
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function (state) {
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assertEqual(state.count, collectionCount(cn));
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assertEqual(state.checksum, collectionChecksum(cn));
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}
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);
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},
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// //////////////////////////////////////////////////////////////////////////////
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// / @brief test long transaction, blocking
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// //////////////////////////////////////////////////////////////////////////////
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testLongTransactionBlocking: function () {
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connectToMaster();
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compare(
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function (state) {
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db._create(cn);
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},
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function (state) {
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db._executeTransaction({
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collections: {
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write: cn
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},
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action: function (params) {
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var wait = require('internal').wait;
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var db = require('internal').db;
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var c = db._collection(params.cn);
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for (var i = 0; i < 10; ++i) {
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c.save({
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test1: i,
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type: 'longTransactionBlocking',
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coll: 'UnitTestsReplication'
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});
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c.save({
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test2: i,
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type: 'longTransactionBlocking',
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coll: 'UnitTestsReplication'
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});
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// intentionally delay the transaction
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wait(0.75, false);
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}
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},
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params: {
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cn: cn
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}
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});
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state.checksum = collectionChecksum(cn);
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state.count = collectionCount(cn);
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assertEqual(20, state.count);
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},
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function (state) {
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// stop and restart replication on the slave
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assertTrue(replication.applier.state().state.running);
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replication.applier.stop();
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assertFalse(replication.applier.state().state.running);
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replication.applier.start();
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assertTrue(replication.applier.state().state.running);
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return true;
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},
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function (state) {
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assertEqual(state.count, collectionCount(cn));
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assertEqual(state.checksum, collectionChecksum(cn));
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}
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);
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},
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// //////////////////////////////////////////////////////////////////////////////
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// / @brief test long transaction, asynchronous
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// //////////////////////////////////////////////////////////////////////////////
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testLongTransactionAsync: function () {
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connectToMaster();
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compare(
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function (state) {
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db._create(cn);
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},
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function (state) {
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var func = db._executeTransaction({
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collections: {
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write: cn
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},
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action: function (params) {
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var wait = require('internal').wait;
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var db = require('internal').db;
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var c = db._collection(params.cn);
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for (var i = 0; i < 10; ++i) {
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c.save({
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test1: i,
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type: 'longTransactionAsync',
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coll: 'UnitTestsReplication'
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});
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c.save({
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test2: i,
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type: 'longTransactionAsync',
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coll: 'UnitTestsReplication'
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});
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// intentionally delay the transaction
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wait(3.0, false);
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}
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},
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params: {
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cn: cn
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}
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});
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state.task = require('@arangodb/tasks').register({
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name: 'replication-test-async',
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command: String(func),
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params: {
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cn: cn
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}
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}).id;
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},
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function (state) {
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assertTrue(replication.applier.state().state.running);
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connectToMaster();
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try {
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require('@arangodb/tasks').get(state.task);
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// task exists
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connectToSlave();
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return 'wait';
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} catch (err) {
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// task does not exist. we're done
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state.lastLogTick = replication.logger.state().state.lastUncommittedLogTick;
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state.checksum = collectionChecksum(cn);
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state.count = collectionCount(cn);
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assertEqual(20, state.count);
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connectToSlave();
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return true;
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}
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},
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function (state) {
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assertTrue(state.hasOwnProperty('count'));
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assertEqual(state.count, collectionCount(cn));
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}
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);
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},
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// //////////////////////////////////////////////////////////////////////////////
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// / @brief test long transaction, asynchronous
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// //////////////////////////////////////////////////////////////////////////////
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testLongTransactionAsyncWithSlaveRestarts: function () {
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connectToMaster();
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compare(
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function (state) {
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db._create(cn);
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},
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function (state) {
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var func = db._executeTransaction({
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collections: {
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write: cn
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},
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action: function (params) {
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var wait = require('internal').wait;
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var db = require('internal').db;
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var c = db._collection(params.cn);
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for (var i = 0; i < 10; ++i) {
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c.save({
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test1: i,
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type: 'longTransactionAsyncWithSlaveRestarts',
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coll: 'UnitTestsReplication'
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});
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c.save({
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test2: i,
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type: 'longTransactionAsyncWithSlaveRestarts',
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coll: 'UnitTestsReplication'
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});
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// intentionally delay the transaction
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wait(0.75, false);
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}
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},
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params: {
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cn: cn
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}
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});
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state.task = require('@arangodb/tasks').register({
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name: 'replication-test-async-with-restart',
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command: String(func),
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params: {
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cn: cn
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}
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}).id;
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},
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function (state) {
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// stop and restart replication on the slave
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assertTrue(replication.applier.state().state.running);
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replication.applier.stop();
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assertFalse(replication.applier.state().state.running);
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connectToMaster();
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try {
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require('@arangodb/tasks').get(state.task);
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// task exists
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|
connectToSlave();
|
|
|
|
internal.wait(0.5, false);
|
|
replication.applier.start();
|
|
assertTrue(replication.applier.state().state.running);
|
|
return 'wait';
|
|
} catch (err) {
|
|
// task does not exist anymore. we're done
|
|
state.lastLogTick = replication.logger.state().state.lastUncommittedLogTick;
|
|
state.checksum = collectionChecksum(cn);
|
|
state.count = collectionCount(cn);
|
|
assertEqual(20, state.count);
|
|
connectToSlave();
|
|
replication.applier.start();
|
|
assertTrue(replication.applier.state().state.running);
|
|
return true;
|
|
}
|
|
},
|
|
|
|
function (state) {
|
|
assertEqual(state.count, collectionCount(cn));
|
|
}
|
|
);
|
|
}
|
|
|
|
};
|
|
}
|
|
|
|
// //////////////////////////////////////////////////////////////////////////////
|
|
// / @brief test suite for _system
|
|
// //////////////////////////////////////////////////////////////////////////////
|
|
|
|
function ReplicationSuite () {
|
|
'use strict';
|
|
let suite = {
|
|
|
|
// //////////////////////////////////////////////////////////////////////////////
|
|
// / @brief set up
|
|
// //////////////////////////////////////////////////////////////////////////////
|
|
|
|
setUp: function () {
|
|
connectToSlave();
|
|
try {
|
|
replication.applier.stop();
|
|
replication.applier.forget();
|
|
} catch (err) {
|
|
}
|
|
|
|
connectToMaster();
|
|
|
|
db._drop(cn);
|
|
db._drop(cn2);
|
|
db._drop(cn + 'Renamed');
|
|
},
|
|
|
|
// //////////////////////////////////////////////////////////////////////////////
|
|
// / @brief tear down
|
|
// //////////////////////////////////////////////////////////////////////////////
|
|
|
|
tearDown: function () {
|
|
connectToMaster();
|
|
|
|
db._drop(cn);
|
|
db._drop(cn2);
|
|
|
|
connectToSlave();
|
|
replication.applier.stop();
|
|
replication.applier.forget();
|
|
|
|
db._drop(cn);
|
|
db._drop(cn2);
|
|
db._drop(cn + 'Renamed');
|
|
}
|
|
};
|
|
|
|
deriveTestSuite(BaseTestConfig(), suite, '_Repl');
|
|
|
|
return suite;
|
|
}
|
|
|
|
// //////////////////////////////////////////////////////////////////////////////
|
|
// / @brief test suite for other database
|
|
// //////////////////////////////////////////////////////////////////////////////
|
|
|
|
function ReplicationOtherDBSuite () {
|
|
'use strict';
|
|
const dbName = 'UnitTestDB';
|
|
|
|
// Setup documents to be stored on the master.
|
|
|
|
let docs = [];
|
|
for (let i = 0; i < 50; ++i) {
|
|
docs.push({value: i});
|
|
}
|
|
|
|
// Shared function that sets up replication
|
|
// of the collection and inserts 50 documents.
|
|
const setupReplication = function () {
|
|
// Section - Master
|
|
connectToMaster();
|
|
|
|
// Create the collection
|
|
db._flushCache();
|
|
db._create(cn);
|
|
|
|
// Section - Follower
|
|
connectToSlave();
|
|
|
|
// Setup Replication
|
|
replication.applier.stop();
|
|
replication.applier.forget();
|
|
|
|
while (replication.applier.state().state.running) {
|
|
internal.wait(0.1, false);
|
|
}
|
|
|
|
let config = {
|
|
endpoint: masterEndpoint,
|
|
username: 'root',
|
|
password: '',
|
|
verbose: true,
|
|
includeSystem: false
|
|
};
|
|
|
|
replication.setupReplication(config);
|
|
|
|
// Section - Master
|
|
connectToMaster();
|
|
// Insert some documents
|
|
db._collection(cn).save(docs);
|
|
// Flush wal to trigger replication
|
|
internal.wal.flush(true, true);
|
|
internal.wait(6, false);
|
|
// Use counter as indicator
|
|
let count = collectionCount(cn);
|
|
assertEqual(50, count);
|
|
|
|
// Section - Slave
|
|
connectToSlave();
|
|
|
|
// Give it some time to sync
|
|
internal.wait(6, false);
|
|
// Now we should have the same amount of documents
|
|
assertEqual(count, collectionCount(cn));
|
|
};
|
|
|
|
let suite = {
|
|
// //////////////////////////////////////////////////////////////////////////////
|
|
// / @brief set up
|
|
// //////////////////////////////////////////////////////////////////////////////
|
|
|
|
setUp: function () {
|
|
db._useDatabase('_system');
|
|
connectToSlave();
|
|
try {
|
|
replication.applier.stop();
|
|
replication.applier.forget();
|
|
} catch (err) {
|
|
}
|
|
|
|
try {
|
|
db._dropDatabase(dbName);
|
|
} catch (e) {
|
|
}
|
|
|
|
db._createDatabase(dbName);
|
|
|
|
connectToMaster();
|
|
|
|
try {
|
|
db._dropDatabase(dbName);
|
|
} catch (e) {
|
|
}
|
|
db._createDatabase(dbName);
|
|
db._useDatabase(dbName);
|
|
},
|
|
|
|
// //////////////////////////////////////////////////////////////////////////////
|
|
// / @brief tear down
|
|
// //////////////////////////////////////////////////////////////////////////////
|
|
|
|
tearDown: function () {
|
|
db._useDatabase('_system');
|
|
|
|
connectToSlave();
|
|
try {
|
|
db._useDatabase(dbName);
|
|
|
|
replication.applier.stop();
|
|
replication.applier.forget();
|
|
} catch (e) {
|
|
}
|
|
|
|
db._useDatabase('_system');
|
|
try {
|
|
db._dropDatabase(dbName);
|
|
} catch (e) {
|
|
}
|
|
|
|
connectToMaster();
|
|
|
|
db._useDatabase('_system');
|
|
try {
|
|
db._dropDatabase(dbName);
|
|
} catch (e) {
|
|
}
|
|
},
|
|
|
|
// //////////////////////////////////////////////////////////////////////////////
|
|
// / @brief test dropping a database on slave while replication is ongoing
|
|
// //////////////////////////////////////////////////////////////////////////////
|
|
|
|
testDropDatabaseOnSlaveDuringReplication: function () {
|
|
setupReplication();
|
|
|
|
// Section - Slave
|
|
connectToSlave();
|
|
|
|
// Now do the evil stuff: drop the database that is replicating right now.
|
|
db._useDatabase('_system');
|
|
|
|
// This shall not fail.
|
|
db._dropDatabase(dbName);
|
|
|
|
// Section - Master
|
|
connectToMaster();
|
|
|
|
// Just write some more
|
|
db._useDatabase(dbName);
|
|
db._collection(cn).save(docs);
|
|
internal.wal.flush(true, true);
|
|
internal.wait(6, false);
|
|
|
|
db._useDatabase('_system');
|
|
|
|
// Section - Slave
|
|
connectToSlave();
|
|
|
|
// The DB should be gone and the server should be running.
|
|
let dbs = db._databases();
|
|
assertEqual(-1, dbs.indexOf(dbName));
|
|
|
|
// We can setup everything here without problems.
|
|
try {
|
|
db._createDatabase(dbName);
|
|
} catch (e) {
|
|
assertFalse(true, 'Could not recreate database on slave: ' + e);
|
|
}
|
|
|
|
db._useDatabase(dbName);
|
|
|
|
try {
|
|
db._create(cn);
|
|
} catch (e) {
|
|
assertFalse(true, 'Could not recreate collection on slave: ' + e);
|
|
}
|
|
|
|
// Collection should be empty
|
|
assertEqual(0, collectionCount(cn));
|
|
|
|
// now test if the replication is actually
|
|
// switched off
|
|
|
|
// Section - Master
|
|
connectToMaster();
|
|
// Insert some documents
|
|
db._collection(cn).save(docs);
|
|
// Flush wal to trigger replication
|
|
internal.wal.flush(true, true);
|
|
|
|
// Section - Slave
|
|
connectToSlave();
|
|
|
|
// Give it some time to sync (eventually, should not do anything...)
|
|
internal.wait(6, false);
|
|
|
|
// Now should still have empty collection
|
|
assertEqual(0, collectionCount(cn));
|
|
},
|
|
|
|
testDropDatabaseOnMasterDuringReplication: function () {
|
|
setupReplication();
|
|
|
|
// Section - Master
|
|
// Now do the evil stuff: drop the database that is replicating from right now.
|
|
connectToMaster();
|
|
db._useDatabase('_system');
|
|
|
|
// This shall not fail.
|
|
db._dropDatabase(dbName);
|
|
|
|
// The DB should be gone and the server should be running.
|
|
let dbs = db._databases();
|
|
assertEqual(-1, dbs.indexOf(dbName));
|
|
|
|
// Now recreate a new database with this name
|
|
db._createDatabase(dbName);
|
|
db._useDatabase(dbName);
|
|
|
|
db._create(cn);
|
|
db._collection(cn).save(docs);
|
|
|
|
// Section - Slave
|
|
connectToSlave();
|
|
|
|
// Give it some time to sync (eventually, should not do anything...)
|
|
internal.wait(6, false);
|
|
|
|
// Now test if the Slave did replicate the new database directly...
|
|
assertEqual(50, collectionCount(cn),
|
|
'The slave inserted the new collection data into the old one, it skipped the drop.');
|
|
}
|
|
};
|
|
|
|
deriveTestSuite(BaseTestConfig(), suite, '_ReplOther');
|
|
return suite;
|
|
}
|
|
|
|
// //////////////////////////////////////////////////////////////////////////////
|
|
// / @brief executes the test suite
|
|
// //////////////////////////////////////////////////////////////////////////////
|
|
|
|
jsunity.run(ReplicationSuite);
|
|
jsunity.run(ReplicationOtherDBSuite);
|
|
|
|
return jsunity.done();
|