Magento_Indexer module

This module provides Magento Indexing functionality. It allows to:

• read indexers configuration
• represent indexers in admin
• regenerate indexes by cron schedule
• regenerate indexes from console
• view and reset indexer state from console
• view and set indexer mode from console

Installation

This module is one of the base modules. You cannot disable or uninstall this module.

This module is dependent on the following modules:

• Magento_Store
• Magento_AdminNotification

This module creates the following tables in the database:

• indexer_state
• mview_state

For information about a module installation, see Enable or disable modules.

Structure

App/ - the directory that contains the launch application entry point.

For information about a typical file structure of a module, see Module file structure.

Extensibility

Extension developers can interact with the Magento_Indexer module. For more information about the extension mechanism, see Plugins.

The dependency injection mechanism enables you to override the functionality of the Magento_Indexer module.

Events

The module dispatches the following events:

Model

• clean_cache_by_tags event in the \Magento\Indexer\Model\Indexer\CacheCleaner::cleanCache method. Parameters:
  • object is a cacheContext object (Magento\Framework\Indexer\CacheContext class)

Plugin

• clean_cache_after_reindex event in the \Magento\Indexer\Model\Processor\CleanCache::afterUpdateMview method. Parameters:

  • object is a context object (Magento\Framework\Indexer\CacheContext class)

• clean_cache_by_tags event in the \Magento\Indexer\Model\Processor\CleanCache::afterReindexAllInvalid method. Parameters:

  • object is a context object (Magento\Framework\Indexer\CacheContext class)

For information about an event, see Events and observers.

Layouts

This module introduces the following layout handles in the view/adminhtml/layout directory:

• indexer_indexer_list
• indexer_indexer_list_grid

For more information about layouts, see the Layout documentation.

Additional information

Indexer modes

There are 2 modes of the indexers:

• Update on Save - index tables are updated immediately after the dictionary data is changed
• Update by Schedule - index tables are updated by cron job according to the configured schedule

Console commands

This module provides the following console commands:

• bin/magento indexer:info - view a list of all indexers
• bin/magento indexer:status [indexer] - view index status
• bin/magento indexer:reindex [indexer] - run reindex
• bin/magento indexer:reset [indexer] - reset indexers
• bin/magento indexer:show-mode [indexer] - view the current indexer configuration
• bin/magento indexer:set-mode {realtime|schedule} [indexer] - specify the indexer configuration
• bin/magento indexer:set-dimensions-mode [indexer] - set indexer dimension mode
• bin/magento indexer:show-dimensions-mode [indexer] - set indexer dimension mode

Cron options

Cron group configuration can be set at etc/crontab.xml:

• indexer_reindex_all_invalid - regenerate indexes for all invalid indexers
• indexer_update_all_views - update indexer views
• indexer_clean_all_changelogs - clean indexer view changelogs

Learn how to configure and run cron in Magento.

You can get more information at the following articles:

• Learn more about indexing
• Learn more about Indexer optimization
• Learn more how to add custom indexer
• Learn how to manage indexers
• Learn more about Index Management

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