MarginaliaSearch/code/services-application/search-service
Viktor Lofgren 0307c55f9f (refac) Zookeeper for service-discovery, kill service-client lib (WIP)
To avoid having to either hard-code or manually configure service addresses (possibly several dozen), and to reduce the project's dependency on docker to deal with routing and discovery, the option to use [Zookeeper](https://zookeeper.apache.org/) to manage services and discovery has been added.

A service registry interface was added, with a Zookeeper implementation and a basic implementation that only works on docker and hard-codes everything.

The last remaining REST service, the assistant-service, has been migrated to gRPC.

This also proved a good time to clear out primordial technical debt from the root of the codebase.  The 'service-client' library has been taken behind the barn and given a last farewell.  It's replaced by a small library for managing gRPC channels.

Since it's no longer used by anything, RxJava has been removed as a dependency from the project.

Although the current state seems reasonably stable, this is a work-in-progress commit.
2024-02-20 11:41:14 +01:00
..
src (refac) Zookeeper for service-discovery, kill service-client lib (WIP) 2024-02-20 11:41:14 +01:00
build.gradle (refac) Zookeeper for service-discovery, kill service-client lib (WIP) 2024-02-20 11:41:14 +01:00
readme.md (refactor) Remove features-search and update documentation 2023-10-09 15:12:30 +02:00

Search Service

This service handles search traffic and is the service you're most directly interacting with when visiting search.marginalia.nu.

It interprets a "human" query and translates it into a request that gets passed into to the index service, which finds related documents, which this service then ranks and returns to the user.

image

Central classes

  • SearchService receives requests and delegates to the appropriate services.

  • CommandEvaluator interprets a user query and acts upon it, dealing with special operations like browse: or site:.

  • SearchQueryIndexService passes a parsed search query to the index service, and then decorates the search results so that they can be rendered.

See Also