update vehicles in batches

app/jobs/vehicle_vin_decode_job.rb

@@ -32,7 +32,7 @@ class VehicleVinDecodeJob < ApplicationJob
       model: details.model.presence || vehicle.model,
       doors: details.doors.presence || vehicle.doors,
       trim: details.trim.presence || vehicle.trim,
-      name: vehicle.to_s,
+      name: build_name(vehicle, details),
       vin_decoded: true,
       error: nil
     )
@@ -40,6 +40,15 @@ class VehicleVinDecodeJob < ApplicationJob
 
   private
 
+  def build_name(vehicle, details)
+    if details.year && details.make && details.model
+      suffix = vehicle.vin.to_s[9..]
+      "#{details.year} #{details.make} #{details.model} - #{suffix}"
+    else
+      vehicle.vin
+    end
+  end
+
   def log(msg)
     Rails.logger.info "[VehicleVinDecodeJob] #{msg}"
   end

db/migrate/004_add_polling_and_indexes.rb

@@ -19,8 +19,10 @@ class AddPollingAndIndexes < ActiveRecord::Migration[7.0]
     add_index :vehicles, :model
     add_index :vehicles, :year
 
-    Vehicle.all.each do |v|
-      VehicleVinDecodeJob.perform_later(v.id)
+    Vehicle.find_each.with_index do |vehicle, index|
+      VehicleVinDecodeJob
+        .set(wait: (index / 50).minutes)
+        .perform_later(vehicle.id)
     end
   end