Question

希望你们做的很棒。

我在自己的nodejs项目中实现了BullMQ（Bull的下一个主要版本），以安排作业发送电子邮件。例如，发送忘记密码请求的电子邮件。因此，我已经将代码编写如下。

用户服务：

await resetPasswordJob({email: 'xyz@test.com'});       // from service I'm calling a job

重置密码作业：

const {Queue} = require('bullmq');
const IOredis = require('ioredis');

const connection = new IOredis(process.env.REDIS_PORT || 6379);
const resetPasswordResolver = require('../resolvers/resetPasswordResolver');

const resetPasswordJob = async (payload) => {
  const queue = new Queue('default', {connection});        // 'default' is queue name

  // Added below line, because I was getting this issue sometime
  // "MaxListenersExceededWarning: Possible EventEmitter memory leak detected."
  queue.setMaxListeners(queue.getMaxListeners() + 1); 
      
  await queue.add('resetPassword', payload, {
    removeOnFail: true,
    removeOnComplete: true,
  });               // 'resetPassword' is job name

  const worker = new Worker('default', async (job) => 
     await resetPasswordResolver(job.data)
  );
  worker.on('completed', (job) => {
    console.log(`Worker Mesg: ${job.id} has completed.`);
    done();
  });
  worker.on('failed', (job, err) => {
    console.log(
      `Worker Mesg: ${job.id} has failed with ${err.message}!`
    );
    done();
  });
};

module.exports = resetPasswordJob;

重置密码解析器：

const sendMail = require('../../utils/sendMail');

const resetPasswordMailResolver = async (payload) => {
  const body = `<html>Some html email template here</html>`;
  await sendMail({to: payload.email, subject: 'Reset your account password', body: body});

  return {};
};

module.exports = resetPasswordMailResolver;

但是问题是，如果我执行一次并尝试执行其他作业，那么该作业仅在执行，而没有最新执行。并在控制台中收到错误消息：

Worker Mesg: 7 has completed.
Error: Missing lock for job 7 failed
    at Function.finishedErrors (/home/admini/Documents/node-project/node_modules/bullmq/dist/classes/scripts.js:135:24)
    at Job.moveToFailed (/home/admini/Documents/node-project/node_modules/bullmq/dist/classes/job.js:197:41)
    at processTicksAndRejections (internal/process/task_queues.js:93:5)
    at async handleFailed (/home/admini/Documents/node-project/node_modules/bullmq/dist/classes/worker.js:207:17)
    at async Worker.run (/home/admini/Documents/node-project/node_modules/bullmq/dist/classes/worker.js:90:33)

我无法找到此错误的任何具体解决方案。请帮帮我。

谢谢你们！

Answer 1

您的问题可以由几件事情引起。

<块引用>

首先，您有一项需要 30 秒以上才能完成的工作。

<块引用>

第二个你设置 worker.on 函数来监听事件，然后在完成或进度中你做了一些导致错误的事情。

<块引用>

第三，您在 redis 连接中设置 keyPrefix。删除它。

节点Js：Redis作业完成任务后未完成

1 个答案: