Does the Sphinx Storage Engine support RT indexes? Can you write to them from MariaDB?
Sphinx has a special RT (real time) index type. These indexes can accept writes (from the Sphinx doc):
RT index can be accessed using MySQL protocol. INSERT, REPLACE, DELETE, and SELECT statements against RT index are supported.
Does MariaDB support write statements to a rt index through the Sphinx Storage Engine? Can replication be made to update a Sphinx Storage Engine like a trigger on a table causing the new data to be inserted / updated / deleted on a Sphinx RT table? Triggers and Stored Routines have their own issues (like not being replicated in ROW based replication) but is there a way to tightly couple the rt index to changes in a slave db?
If I can make this work it would solve a difficult issue.