n8n
Version:
n8n Workflow Automation Tool
138 lines • 6.47 kB
JavaScript
"use strict";
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
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return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.ConcurrencyControlService = exports.CLOUD_TEMP_REPORTABLE_THRESHOLDS = exports.CLOUD_TEMP_PRODUCTION_LIMIT = void 0;
const Logger_1 = require("../Logger");
const config_1 = __importDefault(require("../config"));
const typedi_1 = require("typedi");
const concurrency_queue_1 = require("./concurrency-queue");
const unknown_execution_mode_error_1 = require("../errors/unknown-execution-mode.error");
const invalid_concurrency_limit_error_1 = require("../errors/invalid-concurrency-limit.error");
const execution_repository_1 = require("../databases/repositories/execution.repository");
const telemetry_1 = require("../telemetry");
const event_service_1 = require("../events/event.service");
exports.CLOUD_TEMP_PRODUCTION_LIMIT = 999;
exports.CLOUD_TEMP_REPORTABLE_THRESHOLDS = [5, 10, 20, 50, 100, 200];
let ConcurrencyControlService = class ConcurrencyControlService {
constructor(logger, executionRepository, telemetry, eventService) {
this.logger = logger;
this.executionRepository = executionRepository;
this.telemetry = telemetry;
this.eventService = eventService;
this.limitsToReport = exports.CLOUD_TEMP_REPORTABLE_THRESHOLDS.map((t) => exports.CLOUD_TEMP_PRODUCTION_LIMIT - t);
this.productionLimit = config_1.default.getEnv('executions.concurrency.productionLimit');
if (this.productionLimit === 0) {
throw new invalid_concurrency_limit_error_1.InvalidConcurrencyLimitError(this.productionLimit);
}
if (this.productionLimit < -1) {
this.productionLimit = -1;
}
if (this.productionLimit === -1 || config_1.default.getEnv('executions.mode') === 'queue') {
this.isEnabled = false;
this.log('Service disabled');
return;
}
this.productionQueue = new concurrency_queue_1.ConcurrencyQueue(this.productionLimit);
this.logInit();
this.isEnabled = true;
this.productionQueue.on('concurrency-check', ({ capacity }) => {
if (this.shouldReport(capacity)) {
this.telemetry.track('User hit concurrency limit', {
threshold: exports.CLOUD_TEMP_PRODUCTION_LIMIT - capacity,
});
}
});
this.productionQueue.on('execution-throttled', ({ executionId }) => {
this.log('Execution throttled', { executionId });
this.eventService.emit('execution-throttled', { executionId });
});
this.productionQueue.on('execution-released', async (executionId) => {
this.log('Execution released', { executionId });
await this.executionRepository.resetStartedAt(executionId);
});
}
has(executionId) {
if (!this.isEnabled)
return false;
return this.productionQueue.getAll().has(executionId);
}
async throttle({ mode, executionId }) {
if (!this.isEnabled || this.isUnlimited(mode))
return;
await this.productionQueue.enqueue(executionId);
}
release({ mode }) {
if (!this.isEnabled || this.isUnlimited(mode))
return;
this.productionQueue.dequeue();
}
remove({ mode, executionId }) {
if (!this.isEnabled || this.isUnlimited(mode))
return;
this.productionQueue.remove(executionId);
}
async removeAll(activeExecutions) {
if (!this.isEnabled)
return;
const enqueuedProductionIds = this.productionQueue.getAll();
for (const id of enqueuedProductionIds) {
this.productionQueue.remove(id);
}
const executionIds = Object.entries(activeExecutions)
.filter(([_, execution]) => execution.status === 'new' && execution.responsePromise)
.map(([executionId, _]) => executionId);
if (executionIds.length === 0)
return;
await this.executionRepository.cancelMany(executionIds);
this.logger.info('Canceled enqueued executions with response promises', { executionIds });
}
disable() {
this.isEnabled = false;
}
logInit() {
this.log('Enabled');
this.log([
'Production execution concurrency is',
this.productionLimit === -1 ? 'unlimited' : 'limited to ' + this.productionLimit.toString(),
].join(' '));
}
isUnlimited(mode) {
if (mode === 'error' ||
mode === 'integrated' ||
mode === 'cli' ||
mode === 'internal' ||
mode === 'manual' ||
mode === 'retry') {
return true;
}
if (mode === 'webhook' || mode === 'trigger')
return this.productionLimit === -1;
throw new unknown_execution_mode_error_1.UnknownExecutionModeError(mode);
}
log(message, meta) {
this.logger.debug(['[Concurrency Control]', message].join(' '), meta);
}
shouldReport(capacity) {
return config_1.default.getEnv('deployment.type') === 'cloud' && this.limitsToReport.includes(capacity);
}
};
exports.ConcurrencyControlService = ConcurrencyControlService;
exports.ConcurrencyControlService = ConcurrencyControlService = __decorate([
(0, typedi_1.Service)(),
__metadata("design:paramtypes", [Logger_1.Logger,
execution_repository_1.ExecutionRepository,
telemetry_1.Telemetry,
event_service_1.EventService])
], ConcurrencyControlService);
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