Forking writes between indexes

Background

Writes to one index should also be written to one or more other indexes

Process

• Collect the following information about each index that you want to write to (these can be found in index settings in the prod-EcomIndexSettingsTable in the Controller account):
  • system_account_id: System account ID. Defaults to the same as the source.
  • index_name: Name of the aliased index.
  • shop_id: Shop ID of the aliased index. This is the same as the “index ID” which is typically {system_account_id}-{index_name}.
  • queue_url: SQS queue URL of the aliased index.
  • s3_bucket: S3 bucket for docs to write to the aliased index. This is the same for all indexes. s3_prefix: S3 prefix for docs to write to the aliased index. This is just {shop_id}/.
• Edit ecommerce index settings, specifically add_docs_config, to add index_write_aliases
  • ⚠️ Note that when using write aliases, only write aliases are considered at runtime. If you want a write to foo to be written to both foo and bar, you need two write aliases, for both foo and bar.
• Once updated, you should see activity on the target (alias) index queues in SQS or the ecom dashboard, and jobs in the jobs list (e.g. on the Admin UI for the index).