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edc1acbb7e
The EC_DOMAIN_LINK MariaDB table stores links between domains. This is problematic, as both updating and querying this table is very slow in relation to how small the data is (~10 GB). This slowness is largely caused by the database enforcing ACID guarantees we don't particularly need. This changeset replaces the EC_DOMAIN_LINK table with a file in each index node containing 32 bit integer pairs corresponding to links between two domains. This file is loaded in memory in each node, and can be queried via the Query Service. A migration step is needed before this file is created in each node. Until that happens, the actual data is loaded from the EC_DOMAIN_LINK table, but accessed as though it was a file. The changeset also migrates/renames the links.db file to documents.db to avoid naming confusion between the two. |
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| assistant-service | ||
| control-service | ||
| executor-service | ||
| index-service | ||
| query-service | ||
| readme.md | ||
Core Services
The cores services constitute the main functionality of the search engine, relatively agnostic to the Marginalia application.
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The index-service contains the indexes, it answers questions about which documents contain which terms.
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The query-service Interprets queries and delegates work to index-service.
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The control-service provides an operator's user interface, and is responsible for orchestrating the various processes of the system.
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The assistant-service helps the search service with spelling suggestions other peripheral functionality.