Gigablast (founded in 2000 by Matt Wells) announced [0] about open-sourcing their engine under the Apache version 2 license at July 30. The engine is written in mixture of C and C++ and counts more than 500,000 lines of code, see the Github page [1].
Some facts about the engine:
The code compiles into a single executable file which can scale on thousands servers.
It is easily configurable and has a nice documentation [2].
The code is very stable, it works in production since 2002.
Document processing is done using plugins, so you can write a plugin for any type of documents.
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I would like to see a search engine based on this in the dark-nets, particularly in I2P.
Some facts about the engine:
The code compiles into a single executable file which can scale on thousands servers.
It is easily configurable and has a nice documentation [2].
The code is very stable, it works in production since 2002.
Document processing is done using plugins, so you can write a plugin for any type of documents.
---
I would like to see a search engine based on this in the dark-nets, particularly in I2P.
[0] - http://www.prnewswire.com/news-releases/gigablast-now-an-ope...
[1] - https://github.com/gigablast/open-source-search-engine
[2] - https://www.gigablast.com/admin.html