ruby on rails - Delete 1000k records from table asynchronously using sidekiq -


i want delete more 1000k records (some times millions of records) table. feel safe asynchronously using sidekiq , redis, using ruby , sinatra.

when should call sidekiq's "perform" method? need run loop of records need delete? can explain how records deleted put in queue using sidekiq?

here code, please check , let me know whether following right code.

in user controller:

def delete_user    deleteuserworker.perform_async(@client_info, @input_params) end

in lib/workers/deleteuser_worker.rb

class deleteuserworker   include sidekiq::worker    def perform(client_info, input_params)        # executes query , fetches non-active records users table.       @delete_users = user.where("status != ? , enddate < ?", "active", 3.months.ago )       @delete_users.each |user|          user.destroy!       end    end end

if you're going iterate on millions of records should use find_each or find_in_batches instead of each (since .each try instantiate objects @ once):

  @delete_users.find_each |user|      user.destroy!   end

more info: http://api.rubyonrails.org/classes/activerecord/batches.html


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