mirror of https://gitee.com/bigwinds/arangodb
593 lines
16 KiB
JavaScript
593 lines
16 KiB
JavaScript
/*jshint globalstrict:false, strict:false, unused: false */
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/*global fail, assertEqual, assertTrue, assertFalse, assertNull, 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 2010-2012 triagens 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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/// Copyright holder is triAGENS GmbH, Cologne, Germany
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///
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/// @author Jan Steemann
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/// @author Copyright 2013, triAGENS GmbH, Cologne, Germany
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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 errors = arangodb.errors;
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var db = arangodb.db;
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var replication = require("@arangodb/replication");
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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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////////////////////////////////////////////////////////////////////////////////
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/// @brief test suite
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////////////////////////////////////////////////////////////////////////////////
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function ReplicationSuite() {
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'use strict';
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var cn = "UnitTestsReplication";
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var cn2 = "UnitTestsReplication2";
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var connectToMaster = function() {
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arango.reconnect(masterEndpoint, db._name(), "root", "");
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};
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var connectToSlave = function() {
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arango.reconnect(slaveEndpoint, db._name(), "root", "");
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};
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var 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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var collectionCount = function(name) {
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return db._collection(name).count();
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};
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var compareTicks = function(l, r) {
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var i;
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if (l === null) {
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l = "0";
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}
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if (r === null) {
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r = "0";
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}
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if (l.length !== r.length) {
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return l.length - r.length < 0 ? -1 : 1;
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}
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// length is equal
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for (i = 0; i < l.length; ++i) {
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if (l[i] !== r[i]) {
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return l[i] < r[i] ? -1 : 1;
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}
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}
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return 0;
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};
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var 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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internal.wait(1, false);
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var includeSystem = true;
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var restrictType = "";
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var restrictCollections = [];
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applierConfiguration = applierConfiguration || { };
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if (typeof applierConfiguration === 'object') {
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if (applierConfiguration.hasOwnProperty("includeSystem")) {
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includeSystem = applierConfiguration.includeSystem;
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}
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if (applierConfiguration.hasOwnProperty("restrictType")) {
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restrictType = applierConfiguration.restrictType;
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}
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if (applierConfiguration.hasOwnProperty("restrictCollections")) {
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restrictCollections = applierConfiguration.restrictCollections;
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}
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}
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var keepBarrier = false;
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if (applierConfiguration.hasOwnProperty("keepBarrier")) {
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keepBarrier = applierConfiguration.keepBarrier;
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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: includeSystem,
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restrictType: restrictType,
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restrictCollections: restrictCollections,
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keepBarrier: keepBarrier
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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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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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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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if (keepBarrier) {
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replication.applier.start(syncResult.lastLogTick, syncResult.barrierId);
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}
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else {
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replication.applier.start(syncResult.lastLogTick);
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}
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var printed = false;
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while (true) {
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if (!slaveFuncOngoing(state)) {
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return;
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}
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var slaveState = replication.applier.state();
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if (!slaveState.state.running || slaveState.state.lastError.errorNum > 0) {
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break;
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}
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if (compareTicks(slaveState.state.lastAppliedContinuousTick, syncResult.lastLogTick) >= 0 ||
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compareTicks(slaveState.state.lastProcessedContinuousTick, syncResult.lastLogTick) >= 0) { // ||
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// compareTicks(slaveState.state.lastAvailableContinuousTick, syncResult.lastLogTick) > 0) {
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break;
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}
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if (!printed) {
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console.log("waiting for slave to catch up");
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printed = true;
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}
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internal.wait(1.0, false);
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}
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db._flushCache();
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slaveFuncFinal(state);
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};
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return {
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////////////////////////////////////////////////////////////////////////////////
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/// @brief set up
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////////////////////////////////////////////////////////////////////////////////
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setUp: function() {
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connectToSlave();
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try {
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replication.applier.stop();
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replication.applier.forget();
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}
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catch (err) {
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}
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connectToMaster();
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db._drop(cn);
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db._drop(cn2);
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},
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////////////////////////////////////////////////////////////////////////////////
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/// @brief tear down
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////////////////////////////////////////////////////////////////////////////////
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tearDown: function() {
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connectToMaster();
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db._drop(cn);
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db._drop(cn2);
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connectToSlave();
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replication.applier.stop();
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replication.applier.forget();
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db._drop(cn);
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db._drop(cn2);
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},
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test require from present
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////////////////////////////////////////////////////////////////////////////////
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testRequireFromPresentFalse: 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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// flush the wal logs on the master so the start tick is not available
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// anymore when we start replicating
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for (var i = 0; i < 30; ++i) {
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db._collection(cn).save({
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value: i
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});
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internal.wal.flush(); //true, true);
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}
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db._collection(cn).save({
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value: i
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});
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internal.wal.flush(true, true);
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internal.wait(6, false);
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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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// data loss on slave!
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assertTrue(db._collection(cn).count() < 25);
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}, {
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requireFromPresent: false,
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keepBarrier: false
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}
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);
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},
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test require from present, no barrier
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////////////////////////////////////////////////////////////////////////////////
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testRequireFromPresentTrueNoBarrier : 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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// flush the wal logs on the master so the start tick is not available
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// anymore when we start replicating
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for (var i = 0; i < 30; ++i) {
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db._collection(cn).save({ value: i });
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internal.wal.flush(); //true, true);
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}
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internal.wal.flush(true, true);
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internal.wait(6, false);
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},
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function (state) {
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// wait for slave applier to have started and detect the mess
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internal.wait(5, false);
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// slave should have failed
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assertFalse(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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// data loss on slave!
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assertTrue(db._collection(cn).count() < 25);
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},
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{
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requireFromPresent: true,
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keepBarrier: false
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}
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);
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},
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test require from present
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////////////////////////////////////////////////////////////////////////////////
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testRequireFromPresentTrue : 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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// flush the wal logs on the master so the start tick is not available
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// anymore when we start replicating
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for (var i = 0; i < 30; ++i) {
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db._collection(cn).save({ value: i });
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internal.wal.flush(); //true, true);
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}
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internal.wal.flush(true, true);
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internal.wait(6, false);
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state.checksum = collectionChecksum(cn);
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state.count = collectionCount(cn);
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assertEqual(30, state.count);
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},
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function (state) {
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// wait for slave applier to have started and run
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internal.wait(5, false);
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// slave should not have stopped
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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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requireFromPresent: true,
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keepBarrier: true
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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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});
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c.save({
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test2: i
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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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internal.wait(0.5, false);
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replication.applier.start();
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internal.wait(0.5, false);
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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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internal.wait(3, false);
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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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});
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c.save({
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test2: i
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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",
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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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} catch (err) {
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// task does not exist. we're done
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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 false;
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}
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connectToSlave();
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internal.wait(0.5, false);
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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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}
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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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});
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c.save({
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test2: i
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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",
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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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} catch (err) {
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// task does not exist. we're done
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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 false;
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}
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connectToSlave();
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internal.wait(0.5, false);
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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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}
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);
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}
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};
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief executes the test suite
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////////////////////////////////////////////////////////////////////////////////
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jsunity.run(ReplicationSuite);
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return jsunity.done();
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