mitrpaka / elasticsearch_helper_index_alias

Elasticsearch Helper Index Alias

• Adds version index capabilities
• Adds index alias functionality for pointing aliases to index version.
• Useful for re-indexing large datasets after changes to index mappings.

How to use

Setting up Index versions

• Create and setup versioned indexes (See. VersionedIndex.php from examples)

Incrementing Index versions

• Go to index alias management from the Admin menu: Configuration > Search and Metadata > Elasticsearch helper > Elasticsearch helper index management
• Go to the "Aliases management" tab
• Increment the index version as needed after changes to index field mapping.
• Export the new version configuration and commit.

Deploying New Index Versions and Pointing Aliases

• Run drush eshs to setup new index versions during deployment
• Re-index entities from Index management tab
• When re-indexing is done, verify that the new index version contains documents from the "Indices status" tab
• Finally point the aliases to the new index version by clicking "Update index aliases to the latest index version" from the "Aliases management tab"