mirror of https://gitee.com/bigwinds/arangodb
253 lines
7.5 KiB
JavaScript
253 lines
7.5 KiB
JavaScript
/* jshint expr: true */
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/* eslint no-unused-expressions: 0 */
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/* global describe, it, beforeEach, afterEach */
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'use strict';
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const internal = require('internal');
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const tasks = require('@arangodb/tasks');
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const expect = require('chai').expect;
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const isServer = typeof arango === 'undefined';
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const query = 'FOR x IN 1..5 LET y = SLEEP(1) RETURN x';
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const taskInfo = {
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offset: 0,
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command: function () {
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var taskQuery = 'FOR x IN 1..5 LET y = SLEEP(1) RETURN x';
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require('internal').db._query(taskQuery);
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}
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};
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function filterQueries (q) {
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return (q.query === query);
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}
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function sendQuery (count, async) {
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count = count || 1;
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for (let i = 0; i < count; ++i) {
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if (async === false) {
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internal.db._query(query);
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} else {
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tasks.register(taskInfo);
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}
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}
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if (async === true) {
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internal.wait(1);
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}
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}
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function restoreDefaults (testee) {
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testee.properties({
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enabled: true,
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trackSlowQueries: true,
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maxSlowQueries: 64,
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slowQueryThreshold: 10,
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maxQueryStringLength: 8192
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});
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}
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describe('AQL query analyzer', function () {
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let testee;
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beforeEach(function () {
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testee = require('@arangodb/aql/queries');
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restoreDefaults(testee);
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});
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afterEach(function () {
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restoreDefaults(testee);
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});
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it('should be able to activate the tracking', function () {
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testee.properties({
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enabled: true
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});
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expect(testee.properties().enabled).to.be.ok;
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});
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it('should be able to deactivate the tracking', function () {
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testee.properties({
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enabled: false
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});
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expect(testee.properties().enabled).not.to.be.ok;
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});
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it('should be able to set tracking properties', function () {
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testee.properties({
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enabled: true,
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trackSlowQueries: false,
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maxSlowQueries: 42,
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slowQueryThreshold: 2.5,
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maxQueryStringLength: 117
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});
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expect(testee.properties().enabled).to.be.ok;
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expect(testee.properties().trackSlowQueries).not.to.be.ok;
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expect(testee.properties().maxSlowQueries).to.equal(42);
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expect(testee.properties().slowQueryThreshold).to.equal(2.5);
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expect(testee.properties().maxQueryStringLength).to.equal(117);
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});
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describe('with active tracking', function () {
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beforeEach(function () {
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if (isServer && internal.debugCanUseFailAt()) {
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internal.debugClearFailAt();
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}
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testee.properties({
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enabled: true,
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slowQueryThreshold: 20
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});
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testee.clearSlow();
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});
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afterEach(function () {
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if (isServer && internal.debugCanUseFailAt()) {
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internal.debugClearFailAt();
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}
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const list = testee.current().filter(filterQueries);
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for (let item of list) {
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try {
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testee.kill(item.id);
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} catch (e) {
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// noop
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}
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}
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});
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if (isServer && internal.debugCanUseFailAt()) {
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it('should not crash when inserting a query into the current list fails', function () {
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internal.debugSetFailAt('QueryList::insert');
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// inserting the query will fail
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sendQuery(1, true);
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expect(testee.current().filter(filterQueries).length).to.equal(0);
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});
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}
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it('should be able to get currently running queries', function () {
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sendQuery(1, true);
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expect(testee.current().filter(filterQueries).length).to.equal(1);
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});
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it('should have proper running query descriptions', function () {
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sendQuery(1, true);
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let queries = testee.current().filter(filterQueries);
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expect(queries.length).to.equal(1);
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expect(queries[0]).to.have.property('id');
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expect(queries[0]).to.have.property('query', query);
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expect(queries[0]).to.have.property('bindVars');
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expect(queries[0].bindVars).to.eql({});
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expect(queries[0]).to.have.property('started');
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expect(queries[0]).to.have.property('runTime');
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expect(queries[0]).to.have.property('state', 'executing');
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});
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it('should not track queries if turned off', function () {
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testee.properties({
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enabled: false
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});
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sendQuery(1, false);
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expect(testee.current().filter(filterQueries).length).to.equal(0);
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});
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it('should work when tracking is turned off in the middle', function () {
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sendQuery(1, true);
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expect(testee.current().filter(filterQueries).length).to.equal(1);
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// turn it off now
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testee.properties({
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enabled: false
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});
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// wait a while, and expect the list of queries to be empty in the end
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for (let tries = 0; tries < 20; tries++) {
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if (testee.current().filter(filterQueries).length === 0) {
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break;
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}
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internal.wait(1);
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}
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expect(testee.current().filter(filterQueries).length).to.equal(0);
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});
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it('should track slow queries by threshold', function () {
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sendQuery(1, false);
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expect(testee.current().filter(filterQueries).length).to.equal(0);
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expect(testee.slow().filter(filterQueries).length).to.equal(0);
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testee.properties({
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slowQueryThreshold: 2
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});
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sendQuery(1, false);
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expect(testee.current().filter(filterQueries).length).to.equal(0);
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let queries = testee.slow().filter(filterQueries);
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expect(queries.length).to.equal(1);
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expect(queries[0]).to.have.property('id');
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expect(queries[0]).to.have.property('query', query);
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expect(queries[0]).to.have.property('bindVars');
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expect(queries[0].bindVars).to.eql({});
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expect(queries[0]).to.have.property('started');
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expect(queries[0]).to.have.property('runTime');
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expect(queries[0]).to.have.property('state', 'finished');
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});
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it('should be able to clear the list of slow queries', function () {
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testee.properties({
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slowQueryThreshold: 2
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});
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sendQuery(1, false);
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expect(testee.slow().filter(filterQueries).length).to.equal(1);
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testee.clearSlow();
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expect(testee.slow().filter(filterQueries).length).to.equal(0);
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});
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it('should track at most n slow queries', function () {
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const max = 2;
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testee.properties({
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slowQueryThreshold: 2,
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maxSlowQueries: max
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});
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sendQuery(3, false);
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expect(testee.current().filter(filterQueries).length).to.equal(0);
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expect(testee.slow().filter(filterQueries).length).to.equal(max);
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});
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if (isServer && internal.debugCanUseFailAt()) {
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it('should not crash when trying to move a query into the slow list', function () {
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internal.debugSetFailAt('QueryList::remove');
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testee.properties({
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slowQueryThreshold: 2
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});
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sendQuery(3, false);
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// no slow queries should have been logged
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expect(testee.slow().filter(filterQueries).length).to.equal(0);
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});
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}
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it('should not track slow queries if turned off', function () {
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testee.properties({
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slowQueryThreshold: 2,
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trackSlowQueries: false
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});
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sendQuery(1, false);
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expect(testee.current().filter(filterQueries).length).to.equal(0);
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expect(testee.slow().filter(filterQueries).length).to.equal(0);
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});
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it('should be able to kill a query', function () {
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sendQuery(1, true);
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let list = testee.current().filter(filterQueries);
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expect(list.length).to.equal(1);
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expect(function () {
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testee.kill(list[0].id);
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list = testee.current().filter(filterQueries);
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for (let i = 0; i < 10 && list.length > 0; ++i) {
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internal.wait(0.1);
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list = testee.current().filter(filterQueries);
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}
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expect(list.length).to.equal(0);
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}).not.to.throw();
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});
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});
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});
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