Module: GoodJob

Includes:
Dependencies, ThreadStatus
Defined in:
lib/good_job.rb,
lib/good_job/cli.rb,
lib/good_job/bulk.rb,
lib/good_job/daemon.rb,
lib/good_job/engine.rb,
lib/good_job/poller.rb,
lib/good_job/adapter.rb,
lib/good_job/capsule.rb,
lib/good_job/version.rb,
lib/good_job/callable.rb,
lib/good_job/notifier.rb,
lib/good_job/scheduler.rb,
lib/good_job/sd_notify.rb,
app/models/good_job/job.rb,
app/models/good_job/batch.rb,
lib/good_job/cron_manager.rb,
lib/good_job/dependencies.rb,
lib/good_job/probe_server.rb,
lib/good_job/configuration.rb,
lib/good_job/job_performer.rb,
lib/good_job/thread_status.rb,
app/models/good_job/process.rb,
app/models/good_job/setting.rb,
lib/good_job/current_thread.rb,
lib/good_job/log_subscriber.rb,
lib/good_job/capsule_tracker.rb,
lib/good_job/cleanup_tracker.rb,
lib/good_job/interrupt_error.rb,
lib/good_job/multi_scheduler.rb,
lib/good_job/shared_executor.rb,
lib/good_job/systemd_service.rb,
app/models/good_job/execution.rb,
app/models/good_job/cron_entry.rb,
app/models/good_job/base_record.rb,
app/models/good_job/i18n_config.rb,
app/filters/good_job/base_filter.rb,
app/filters/good_job/jobs_filter.rb,
app/models/good_job/batch_record.rb,
app/helpers/good_job/icons_helper.rb,
app/models/good_job/base_execution.rb,
lib/good_job/job_performer/metrics.rb,
app/filters/good_job/batches_filter.rb,
lib/good_job/overridable_connection.rb,
app/models/good_job/execution_result.rb,
app/models/good_job/discrete_execution.rb,
app/helpers/good_job/application_helper.rb,
app/models/concerns/good_job/filterable.rb,
app/models/concerns/good_job/reportable.rb,
lib/good_job/notifier/process_heartbeat.rb,
lib/good_job/probe_server/not_found_app.rb,
app/controllers/good_job/jobs_controller.rb,
lib/generators/good_job/update_generator.rb,
lib/good_job/probe_server/simple_handler.rb,
app/models/concerns/good_job/error_events.rb,
lib/generators/good_job/install_generator.rb,
lib/good_job/active_job_extensions/labels.rb,
lib/good_job/probe_server/webrick_handler.rb,
lib/good_job/active_job_extensions/batches.rb,
app/controllers/good_job/batches_controller.rb,
app/controllers/good_job/metrics_controller.rb,
app/charts/good_job/scheduled_by_queue_chart.rb,
app/controllers/good_job/frontends_controller.rb,
app/controllers/good_job/processes_controller.rb,
app/models/concerns/good_job/advisory_lockable.rb,
app/models/good_job/active_record_parent_class.rb,
lib/good_job/active_job_extensions/concurrency.rb,
app/controllers/good_job/application_controller.rb,
app/controllers/good_job/performance_controller.rb,
app/controllers/good_job/cron_entries_controller.rb,
lib/good_job/probe_server/healthcheck_middleware.rb,
lib/good_job/active_job_extensions/notify_options.rb,
lib/good_job/active_job_extensions/interrupt_errors.rb

Overview

:nodoc:

Defined Under Namespace

Modules: ActiveJobExtensions, AdvisoryLockable, ApplicationHelper, Bulk, Callable, CurrentThread, Dependencies, ErrorEvents, Filterable, IconsHelper, OverridableConnection, Reportable, SdNotify, ThreadStatus Classes: Adapter, ApplicationController, BaseExecution, BaseFilter, BaseRecord, Batch, BatchRecord, BatchesController, BatchesFilter, CLI, Capsule, CapsuleTracker, CleanupTracker, Configuration, CronEntriesController, CronEntry, CronManager, Daemon, DiscreteExecution, Engine, Execution, ExecutionResult, FrontendsController, I18nConfig, InstallGenerator, InterruptError, Job, JobPerformer, JobsController, JobsFilter, LogSubscriber, MetricsController, MultiScheduler, Notifier, PerformanceController, Poller, ProbeServer, Process, ProcessesController, ScheduledByQueueChart, Scheduler, Setting, SharedExecutor, SystemdService, UpdateGenerator

Constant Summary collapse

NONE =

Default, null, blank value placeholder.

Module.new.freeze
DEFAULT_LOGGER =

Default logger for GoodJob; overridden by Rails.logger in Railtie.

ActiveSupport::TaggedLogging.new(ActiveSupport::Logger.new($stdout))
VERSION =

GoodJob gem version.

'4.0.3'
GEM_VERSION =

GoodJob version as Gem::Version object

Gem::Version.new(VERSION)
ActiveRecordParentClass = 
if GoodJob.active_record_parent_class
  Object.const_get(GoodJob.active_record_parent_class)
else
  ActiveRecord::Base
end

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.active_record_parent_class ⇒ ActiveRecord::Base

The ActiveRecord parent class inherited by GoodJob::Job (default: ActiveRecord::Base). Use this when using multiple databases or other custom ActiveRecord configuration.

Examples:

Change the base class:

GoodJob.active_record_parent_class = "CustomApplicationRecord"

Returns:

  • (ActiveRecord::Base) 


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# File 'lib/good_job.rb', line 66

mattr_accessor :active_record_parent_class, default: nil

.capsule ⇒ GoodJob::Capsule?

Global/default execution capsule for GoodJob.

Returns:



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# File 'lib/good_job.rb', line 116

mattr_accessor :capsule, default: GoodJob::Capsule.new(configuration: configuration)

.configuration ⇒ GoodJob::Configuration?

Global configuration object for GoodJob.

Returns:



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# File 'lib/good_job.rb', line 110

mattr_accessor :configuration, default: GoodJob::Configuration.new({})

.logger ⇒ Logger?

The logger used by GoodJob (default: Rails.logger). Use this to redirect logs to a special location or file.

Examples:

Output GoodJob logs to a file:

GoodJob.logger = ActiveSupport::TaggedLogging.new(ActiveSupport::Logger.new("log/my_logs.log"))

Returns:

  • (Logger, nil) 


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# File 'lib/good_job.rb', line 75

mattr_accessor :logger, default: DEFAULT_LOGGER

.on_thread_error ⇒ Proc?

This callable will be called when an exception reaches GoodJob (default: nil). It can be useful for logging errors to bug tracking services, like Sentry or Airbrake.

Examples:

Send errors to Sentry

# config/initializers/good_job.rb
GoodJob.on_thread_error = -> (exception) { Raven.capture_exception(exception) }

Returns:

  • (Proc, nil) 


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# File 'lib/good_job.rb', line 104

mattr_accessor :on_thread_error, default: nil

.preserve_job_records ⇒ Boolean, ...

Whether to preserve job records in the database after they have finished (default: true). If you want to preserve jobs for latter inspection, set this to true. If you want to preserve only jobs that finished with error for latter inspection, set this to :on_unhandled_error. If you do not want to preserve jobs, set this to false. When using GoodJob’s cron functionality, job records will be preserved for a brief time to prevent duplicate jobs.

Returns:

  • (Boolean, Symbol, nil) 


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# File 'lib/good_job.rb', line 85

mattr_accessor :preserve_job_records, default: true

.retry_on_unhandled_error ⇒ Boolean?

Whether to re-perform a job when a type of StandardError is raised to GoodJob (default: false). If true, causes jobs to be re-queued and retried if they raise an instance of StandardError. If false, jobs will be discarded or marked as finished if they raise an instance of StandardError. Instances of Exception, like SIGINT, will always be retried, regardless of this attribute’s value.

Returns:

  • (Boolean, nil) 


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# File 'lib/good_job.rb', line 94

mattr_accessor :retry_on_unhandled_error, default: false

Class Method Details

._on_thread_error(exception) ⇒ void

This method returns an undefined value.

Called with exception when a GoodJob thread raises an exception

Parameters:

  • exception (Exception) —

    Exception that was raised



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# File 'lib/good_job.rb', line 121

def self._on_thread_error(exception)
  on_thread_error.call(exception) if on_thread_error.respond_to?(:call)
end

._shutdown_all(executables, method_name = :shutdown, timeout: -1,, after: []) ⇒ void

This method returns an undefined value.

Sends #shutdown or #restart to executable objects (Notifier, Poller, Scheduler, MultiScheduler, CronManager)

Parameters:



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# File 'lib/good_job.rb', line 179

def self._shutdown_all(executables, method_name = :shutdown, timeout: -1, after: [])
  if timeout.is_a?(Numeric) && timeout.positive?
    executables.each { |executable| executable.send(method_name, timeout: nil) }

    stop_at = Time.current + timeout
    executables.each { |executable| executable.send(method_name, timeout: [stop_at - Time.current, 0].max) }
  else
    executables.each { |executable| executable.send(method_name, timeout: timeout) }
  end
  return unless after.any? && !timeout.nil?

  if stop_at
    after.each { |executable| executable.shutdown(timeout: [stop_at - Time.current, 0].max) }
  else
    after.each { |executable| executable.shutdown(timeout: timeout) }
  end
end

.cleanup_preserved_jobs(older_than: nil, in_batches_of: 1_000) ⇒ Integer

Destroys preserved job and batch records. By default, GoodJob destroys job records when the job is performed and this method is not necessary. However, when ‘GoodJob.preserve_job_records = true`, the jobs will be preserved in the database. This is useful when wanting to analyze or inspect job performance. If you are preserving job records this way, use this method regularly to destroy old records and preserve space in your database.

Parameters:

  • older_than (nil, Numeric, ActiveSupport::Duration) (defaults to: nil) —

    Jobs older than this will be destroyed (default: 86400).

Returns:

  • (Integer) —

    Number of job execution records and batches that were destroyed.



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# File 'lib/good_job.rb', line 206

def self.cleanup_preserved_jobs(older_than: nil, in_batches_of: 1_000)
  older_than ||= GoodJob.configuration.cleanup_preserved_jobs_before_seconds_ago
  timestamp = Time.current - older_than
  include_discarded = GoodJob.configuration.cleanup_discarded_jobs?

  ActiveSupport::Notifications.instrument("cleanup_preserved_jobs.good_job", { older_than: older_than, timestamp: timestamp }) do |payload|
    deleted_jobs_count = 0
    deleted_batches_count = 0
    deleted_discrete_executions_count = 0

    jobs_query = GoodJob::Job.finished_before(timestamp).order(finished_at: :asc).limit(in_batches_of)
    jobs_query = jobs_query.succeeded unless include_discarded
    loop do
      active_job_ids = jobs_query.pluck(:active_job_id)
      break if active_job_ids.empty?

      deleted_discrete_executions = GoodJob::DiscreteExecution.where(active_job_id: active_job_ids).delete_all
      deleted_discrete_executions_count += deleted_discrete_executions

      deleted_jobs = GoodJob::Job.where(active_job_id: active_job_ids).delete_all
      deleted_jobs_count += deleted_jobs
    end

    batches_query = GoodJob::BatchRecord.finished_before(timestamp).limit(in_batches_of)
    batches_query = batches_query.succeeded unless include_discarded
    loop do
      deleted = batches_query.delete_all
      break if deleted.zero?

      deleted_batches_count += deleted
    end

    payload[:destroyed_batches_count] = deleted_batches_count
    payload[:destroyed_discrete_executions_count] = deleted_discrete_executions_count
    payload[:destroyed_jobs_count] = deleted_jobs_count

    destroyed_records_count = deleted_batches_count + deleted_discrete_executions_count + deleted_jobs_count
    payload[:destroyed_records_count] = destroyed_records_count

    destroyed_records_count
  end
end

.configure_active_record(&block) ⇒ void

This method returns an undefined value.

Custom Active Record configuration that is class_eval’ed into GoodJob::BaseRecord

Examples:

GoodJob.configure_active_record do
  connects_to database: :special_database
end

Parameters:

  • block —

    Custom Active Record configuration



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# File 'lib/good_job.rb', line 133

def self.configure_active_record(&block)
  self._active_record_configuration = block
end

.deprecator ⇒ ActiveSupport::Deprecation

Deprecator for providing deprecation warnings.

Returns:

  • (ActiveSupport::Deprecation) 


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# File 'lib/good_job.rb', line 281

def self.deprecator
  @_deprecator ||= begin
    next_major_version = GEM_VERSION.segments[0] + 1
    ActiveSupport::Deprecation.new("#{next_major_version}.0", "GoodJob")
  end
end

.migrated? ⇒ Boolean

Whether all GoodJob migrations have been applied. For use in tests/CI to validate GoodJob is up-to-date.

Returns:

  • (Boolean) 


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# File 'lib/good_job.rb', line 291

def self.migrated?
  true
end

.perform_inline(queue_string = "*", limit: nil) ⇒ void

This method returns an undefined value.

Perform all queued jobs in the current thread. This is primarily intended for usage in a test environment. Unhandled job errors will be raised.

Parameters:

  • queue_string (String) (defaults to: "*") —

    Queues to execute jobs from

  • limit (Integer, nil) (defaults to: nil) —

    Maximum number of iterations for the loop



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# File 'lib/good_job.rb', line 255

def self.perform_inline(queue_string = "*", limit: nil)
  job_performer = JobPerformer.new(queue_string)
  iteration = 0
  loop do
    break if limit && iteration >= limit

    result = Rails.application.executor.wrap { job_performer.next }
    break unless result
    raise result.unhandled_error if result.unhandled_error

    iteration += 1
  end
end

.restart(timeout: -1)) ⇒ void

This method returns an undefined value.

Stops and restarts executing jobs. GoodJob does its work in pools of background threads. When forking processes you should shut down these background threads before forking, and restart them after forking. For example, you should use shutdown and restart when using async execution mode with Puma. See the README for more explanation and examples.

Parameters:

  • timeout (Numeric) (defaults to: -1)) —

    Seconds to wait for active threads to finish.



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# File 'lib/good_job.rb', line 167

def self.restart(timeout: -1)
  return if configuration.execution_mode != :async && configuration.in_webserver?

  _shutdown_all(Capsule.instances, :restart, timeout: timeout)
end

.shutdown(timeout: -1)) ⇒ void

This method returns an undefined value.

Stop executing jobs. GoodJob does its work in pools of background threads. When forking processes you should shut down these background threads before forking, and restart them after forking. For example, you should use shutdown and restart when using async execution mode with Puma. See the README for more explanation and examples.

Parameters:

  • timeout (nil, Numeric) (defaults to: -1)) —

    Seconds to wait for actively executing jobs to finish

    • nil, the scheduler will trigger a shutdown but not wait for it to complete.

    • -1, the scheduler will wait until the shutdown is complete.

    • 0, the scheduler will immediately shutdown and stop any active tasks.

    • 1.., the scheduler will wait that many seconds before stopping any remaining active tasks.



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# File 'lib/good_job.rb', line 150

def self.shutdown(timeout: -1)
  _shutdown_all(Capsule.instances, timeout: timeout)
end

.shutdown? ⇒ Boolean

Tests whether jobs have stopped executing.

Returns:

  • (Boolean) —

    whether background threads are shut down



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# File 'lib/good_job.rb', line 156

def self.shutdown?
  Capsule.instances.all?(&:shutdown?)
end

.v4_ready? ⇒ Boolean

Tests whether GoodJob can be safely upgraded to v4

Returns:

  • (Boolean) 


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# File 'lib/good_job.rb', line 271

def self.v4_ready?
  GoodJob.deprecator.warn(<<~MSG)
    Calling `GoodJob.v4_ready?` is deprecated and will be removed in GoodJob v5.
    If you are reading this deprecation you are already on v4.
  MSG
  true
end