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batch parallel processing
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| jobs_per_process = 100 | |
| process_count = 20 | |
| HolidayCampaignBidLapse.where('user_id % 2 = 0').where(sent: false).find_in_batches(batch_size: jobs_per_process * process_count) do |group| | |
| batches = group.in_groups(process_count) | |
| batches.each do |batch| | |
| Process.fork do | |
| ActiveRecord::Base.establish_connection | |
| batch.each do |campaign| | |
| credit = HolidayCreditBidLapse.find_or_create_by_user_id(campaign.user_id, :amount => 5) | |
| campaign.update_column :sent, true | |
| end | |
| end | |
| end | |
| Process.waitall | |
| return if HolidayCreditBidLapse.count >= 300000 | |
| end | |
| # Watch send rate | |
| loop do; sleep 1.minute; puts HolidayCreditBidLapse.count end |
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