61 lines
2.0 KiB
Ruby
61 lines
2.0 KiB
Ruby
class OptimizeDelayedJobs < ActiveRecord::Migration
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def self.connection
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Delayed::Backend::ActiveRecord::Job.connection
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end
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def self.up
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create_table :failed_jobs do |t|
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t.integer "priority", :default => 0
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t.integer "attempts", :default => 0
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t.string "handler", :limit => 512000
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t.integer "original_id", :limit => 8
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t.text "last_error"
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t.string "queue"
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t.datetime "run_at"
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t.datetime "locked_at"
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t.datetime "failed_at"
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t.string "locked_by"
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t.datetime "created_at"
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t.datetime "updated_at"
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t.string "tag"
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t.integer "max_attempts"
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t.string "strand"
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end
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remove_index :delayed_jobs, :name => 'get_delayed_jobs_index'
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remove_index :delayed_jobs, [:strand]
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add_index :delayed_jobs, %w(run_at queue locked_at strand priority), :name => 'index_delayed_jobs_for_get_next'
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add_index :delayed_jobs, %w(strand id), :name => 'index_delayed_jobs_on_strand'
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# move all failed jobs to the new failed table
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Delayed::Job.find_each(:conditions => 'failed_at is not null') do |job|
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job.fail! unless job.on_hold?
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end
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end
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def self.down
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remove_index :delayed_jobs, :name => 'index_delayed_jobs_for_get_next'
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remove_index :delayed_jobs, :name => 'index_delayed_jobs_on_strand'
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add_index :delayed_jobs, [:strand]
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# from CleanupDelayedJobsIndexes migration
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case connection.adapter_name
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when 'PostgreSQL'
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# "nulls first" syntax is postgresql specific, and allows for more
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# efficient querying for the next job
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connection.execute("CREATE INDEX get_delayed_jobs_index ON delayed_jobs (priority, run_at, failed_at nulls first, locked_at nulls first, queue)")
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else
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add_index :delayed_jobs, %w(priority run_at locked_at failed_at queue), :name => 'get_delayed_jobs_index'
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end
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Delayed::Job::Failed.find_each do |job|
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attrs = job.attributes
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attrs.delete('id')
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Delayed::Job.create!(attrs)
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end
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drop_table :failed_jobs
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end
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end
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