From SphinxSE to FEDERATED

In this article we discuss the differences between using SphinxSE and FEDERATED engine with Manticore Search

The SphinxSE MySQL plugin was made available since the first public release of Sphinx Search. The idea was to allow users to perform search queries using the same MySQL connection. Another benefit was the search result could be joined with another MySQL table for further filtering/sorting or to display data not available in the search result. Also at that time SphinxQL didn’t exist yet.

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Free config review

There are often optimizations that can be made to a Sphinx / Manticore setup by changing some simple directives in the configuration or making quick changes to an index definition.

Some common mistakes and issues can include:

  • doing main+delta without kill-lists, even if the delta does include updated records found in the main
  • using wildcarding with very short prefix/infix which can hammer performance in some cases
  • disabled (unintentional) seamless rotates and getting stalls on index rotations
  • adding texts as string attributes even if they are not using for any kind of operation (filtering, grouping, sorting) or mandatory to be present in results
  • using deprecated settings 

Having a quick look on the configuration can show issues or potential issues, this is why we want to offer a gift to our growing community!

When uploading your configuration file, we recommend to remove any database credentials first.

We suggest also you give as many possible details about your setup: how big is the data you have, how typical queries look and what issues you experience.

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