HI.

We have a client that has about 4,000 registered queries.  These are rather
'large' (taking about 30 minutes to register all of them.

One of the tests yesterday seems to confirm that ingestion of new content
is 1/2 as slow when the queries are registered. Unregistering the queries
again increases throughput of the ingestion.

It should be noted that no queries are being run - they are just sitting
registered.

Can someone explain the inner workings of registered queries?  It seems to
me that there is some level of maintenance of caches related to these
registered queries as new documents are ingested - regardless of the query
being used.

Intuition says that this is likely the case, but I would like to be sure
and cannot find enough information to truly support this theory.

So, does registered queries do something that could be causing quite some
overhead to internally maintain them while ingestion is happening?

Kind Regards,
David
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