Stuck non-repeating repeatable job

Created by: alexkh13

Description

The repeatable job appears to exists in the "repeat" zset but an actual job doesn't exist. The result is that getRepeatableJobs() notifies about a job that isn't happening and is never going to happen. The only option is to remove it and re-add it again.

Test code to reproduce

Couldn't reproduce it. By looking at the code, it seems like an extreme edge case. The only way I see this could happen is if the process was shutdown aggressively right after the zadd finished and couldn't get to the Job.create() in time.

return client
        .zadd(_this.keys.repeat, nextMillis, repeatJobKey)
        .then(function() {
          //
          // Generate unique job id for this iteration.
          //
          var customId = getRepeatJobId(
            name,
            jobId,
            nextMillis,
            md5(repeatJobKey)
          );
          now = Date.now();
          var delay = nextMillis - now;

          return Job.create(
            _this,
            name,
            data,
            _.extend(_.clone(opts), {
              jobId: customId,
              delay: delay < 0 ? 0 : delay,
              timestamp: now,
              prevMillis: nextMillis
            })
          );
        });

Bull version

3.3.10