@rudderstack/integrations-lib
Version:
A comprehensive TypeScript library providing shared utilities, SDKs, and tools for RudderStack integrations and destinations.
150 lines • 16 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
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desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
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if (mod && mod.__esModule) return mod;
var result = {};
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__setModuleDefault(result, mod);
return result;
};
})();
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
/* eslint-disable require-await */
const cluster_1 = __importDefault(require("cluster"));
const manager_1 = require("./manager");
const logger = __importStar(require("../logger"));
async function normalExample() {
const manager = new manager_1.ClusterManager({
numWorkers: 2,
pingFrequency: 1000, // Check every second
pingTimeout: 5000, // 5 seconds for a worker to respond
shutdownTimeout: 5000, // 5 seconds for graceful shutdown
primaryFn: async () => {
setTimeout(() => {
logger.info('Primary process shutting down...');
manager.shutdown('manual shutdown');
}, 10000);
},
primaryShutdownFn: async (signal) => {
logger.info(`Primary process shutting down due to signal: ${signal}`);
},
workerFn: async () => {
// Simulate some work
setInterval(() => {
logger.info(`Worker ${cluster_1.default.worker?.id} is doing work`);
}, 1000);
},
workerShutdownFn: async (signal) => {
logger.info(`Worker ${cluster_1.default.worker?.id} shutting down due to signal: ${signal}`);
},
});
await manager.start();
}
async function stuckExample() {
let stuckCounter = 0;
const manager = new manager_1.ClusterManager({
numWorkers: 2,
pingFrequency: 1000, // Check every second
pingTimeout: 5000, // 5 seconds for a worker to respond
shutdownTimeout: 5000, // 5 seconds for graceful shutdown
stuckWorkerRespawnFunc: (worker) => {
stuckCounter += 1;
if (stuckCounter > 3) {
logger.info(`Stuck worker detected: ${worker.id}. Not respawning anymore.`);
return false; // Stop respawning after 3 stuck workers
}
logger.info(`Stuck worker detected: ${worker.id}. Respawning...`);
return true; // Respawn the worker
},
primaryFn: async () => {
logger.info('Primary process started');
},
primaryShutdownFn: async (signal) => {
logger.info(`Primary process shutting down due to signal: ${signal}`);
},
workerFn: async () => {
logger.info(`Worker ${cluster_1.default.worker?.id} will simulate being stuck`);
// eslint-disable-next-line no-constant-condition
while (true) {
// Simulate a stuck worker
}
},
workerShutdownFn: async (signal) => {
logger.info(`Worker ${cluster_1.default.worker?.id} shutting down due to signal: ${signal}`);
},
});
await manager.start();
}
async function killExample() {
const manager = new manager_1.ClusterManager({
numWorkers: 2,
pingFrequency: 1000, // Check every second
pingTimeout: 5000, // 5 seconds for a worker to respond
shutdownTimeout: 5000, // 5 seconds for graceful shutdown
restartMaxTimes: 3, // Restart a worker up to 3 times
primaryFn: async () => {
logger.info('Primary process started');
},
primaryShutdownFn: async (signal) => {
logger.info(`Primary process shutting down due to signal: ${signal}`);
},
workerFn: async () => {
logger.info(`Worker ${cluster_1.default.worker?.id} started and will crash after 5 seconds`);
// eslint-disable-next-line no-constant-condition
setTimeout(() => {
logger.info(`Killing worker ${cluster_1.default.worker?.id} process`);
process.exit(1); // Simulate a worker crash
}, 5000); // Kill the worker after 5 seconds
},
workerShutdownFn: async (signal) => {
logger.info(`Worker ${cluster_1.default.worker?.id} shutting down due to signal: ${signal}`);
},
});
await manager.start();
}
// to run use: npx ts-node src/cluster/examples.ts [normal|stuck|kill]
if (require.main === module) {
const mode = process.argv[2] || 'normal';
let run;
if (mode === 'stuck') {
run = stuckExample;
}
else if (mode === 'kill') {
run = killExample;
}
else {
run = normalExample;
}
run().catch((err) => {
logger.error(err);
process.exit(1);
});
}
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eslint-disable require-await */\nimport cluster from 'cluster';\nimport { ClusterManager } from './manager';\nimport * as logger from '../logger';\n\nasync function normalExample() {\n  const manager = new ClusterManager({\n    numWorkers: 2,\n    pingFrequency: 1000, // Check every second\n    pingTimeout: 5000, // 5 seconds for a worker to respond\n    shutdownTimeout: 5000, // 5 seconds for graceful shutdown\n    primaryFn: async () => {\n      setTimeout(() => {\n        logger.info('Primary process shutting down...');\n        manager.shutdown('manual shutdown');\n      }, 10000);\n    },\n    primaryShutdownFn: async (signal) => {\n      logger.info(`Primary process shutting down due to signal: ${signal}`);\n    },\n    workerFn: async () => {\n      // Simulate some work\n      setInterval(() => {\n        logger.info(`Worker ${cluster.worker?.id} is doing work`);\n      }, 1000);\n    },\n    workerShutdownFn: async (signal) => {\n      logger.info(`Worker ${cluster.worker?.id} shutting down due to signal: ${signal}`);\n    },\n  });\n  await manager.start();\n}\n\nasync function stuckExample() {\n  let stuckCounter = 0;\n  const manager = new ClusterManager({\n    numWorkers: 2,\n    pingFrequency: 1000, // Check every second\n    pingTimeout: 5000, // 5 seconds for a worker to respond\n    shutdownTimeout: 5000, // 5 seconds for graceful shutdown\n    stuckWorkerRespawnFunc: (worker) => {\n      stuckCounter += 1;\n      if (stuckCounter > 3) {\n        logger.info(`Stuck worker detected: ${worker.id}. Not respawning anymore.`);\n        return false; // Stop respawning after 3 stuck workers\n      }\n      logger.info(`Stuck worker detected: ${worker.id}. Respawning...`);\n      return true; // Respawn the worker\n    },\n    primaryFn: async () => {\n      logger.info('Primary process started');\n    },\n    primaryShutdownFn: async (signal) => {\n      logger.info(`Primary process shutting down due to signal: ${signal}`);\n    },\n    workerFn: async () => {\n      logger.info(`Worker ${cluster.worker?.id} will simulate being stuck`);\n      // eslint-disable-next-line no-constant-condition\n      while (true) {\n        // Simulate a stuck worker\n      }\n    },\n    workerShutdownFn: async (signal) => {\n      logger.info(`Worker ${cluster.worker?.id} shutting down due to signal: ${signal}`);\n    },\n  });\n  await manager.start();\n}\n\nasync function killExample() {\n  const manager = new ClusterManager({\n    numWorkers: 2,\n    pingFrequency: 1000, // Check every second\n    pingTimeout: 5000, // 5 seconds for a worker to respond\n    shutdownTimeout: 5000, // 5 seconds for graceful shutdown\n    restartMaxTimes: 3, // Restart a worker up to 3 times\n    primaryFn: async () => {\n      logger.info('Primary process started');\n    },\n    primaryShutdownFn: async (signal) => {\n      logger.info(`Primary process shutting down due to signal: ${signal}`);\n    },\n    workerFn: async () => {\n      logger.info(`Worker ${cluster.worker?.id} started and will crash after 5 seconds`);\n      // eslint-disable-next-line no-constant-condition\n      setTimeout(() => {\n        logger.info(`Killing worker ${cluster.worker?.id} process`);\n        process.exit(1); // Simulate a worker crash\n      }, 5000); // Kill the worker after 5 seconds\n    },\n    workerShutdownFn: async (signal) => {\n      logger.info(`Worker ${cluster.worker?.id} shutting down due to signal: ${signal}`);\n    },\n  });\n  await manager.start();\n}\n\n// to run use: npx ts-node src/cluster/examples.ts [normal|stuck|kill]\nif (require.main === module) {\n  const mode = process.argv[2] || 'normal';\n  let run;\n  if (mode === 'stuck') {\n    run = stuckExample;\n  } else if (mode === 'kill') {\n    run = killExample;\n  } else {\n    run = normalExample;\n  }\n  run().catch((err) => {\n    logger.error(err);\n    process.exit(1);\n  });\n}\n"]}