Presently billing runs without a dedicated worker. It is defined in ThreeScale::Jobs::BILLING

It runs for between 7k and 8k seconds and is not nicely logged thus we can't easily monitor the performance. Presently in sidekiq log looks like:

2022-11-01T11:50:08.971Z 21905 TID-otq8ntbs5 CronJob::Worker JID-376d46f132477bfc96c71f37 INFO: done: 13807.327 sec

The above is longer because start of month there is more work.

A new Worker class needs to be created so it is logged properly (e.g. BillingBatchEnqueuer). Also this enqueuer worker may split accounts in batches of enqueuers to limit the overall time each job runs (e.g. BillingEnqueuer, these should be throttled to 1 or 2 simultaneous execution). Finally these can enqueue the current individual billing workers.