Method retry

lib/job.js:195–210

(cb)

  }

  retry(cb) {
    const promise = this.queue
      ._commandable()
      .then((client) =>
        helpers.callAsync((done) =>
          client
            .multi()
            .srem(this.queue.toKey('failed'), this.id)
            .lpush(this.queue.toKey('waiting'), this.id)
            .exec(done)
        )
      );

    if (cb) helpers.asCallback(promise, cb);
    return promise;
  }

  isInSet(set, cb) {
    const promise = this.queue