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opensearch: Replace Elasticsearch by OpenSearch #577

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Aug 11, 2023
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opensearch: Replace Elasticsearch by OpenSearch #577

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10 changes: 5 additions & 5 deletions docs/develop/architecture/infrastructure.md
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Expand Up @@ -11,7 +11,7 @@ infrastructure. It consists of:
- **Application servers:** UWSGI, Gunicorn or mod_wsgi.
- **Distributed task queue:** Celery
- **Database:** PostgreSQL, MySQL or SQLite.
- **Search engine:** Elasticsearch (v6 and v7).
- **Search engine:** OpenSearch (v1 and v2).
- **Message queue:** RabbitMQ, Redis or Amazon SQS.
- **Cache system:** Redis or Memcache.
- **Storage system:** Local, S3, XRootD, WebDAV and more.
Expand Down Expand Up @@ -97,17 +97,17 @@ than a database.

## Search and indexing

Invenio uses Elasticsearch as its underlying search engine since Elasticsearch
Invenio uses OpenSearch as its underlying search engine since OpenSearch
is fully JSON-based, and thus fit well together with storing records internally
in the database as JSON documents.

Elasticsearch furthermore is highly scalable and provides very powerful search
OpenSearch furthermore is highly scalable and provides very powerful search
and aggregation capabilities. You can for instance make geospatial queries with
Elasticsearch.
OpenSearch.

**Direct indexing**

Invenio has the option to directly index a record in Elasticsearch when
Invenio has the option to directly index a record in OpenSearch when
handling a request, and thus make the record immediately available for
searches.

Expand Down
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