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From Toke Eskildsen <>
Subject Re: SolrCloud scaling/optimization for high request rate
Date Thu, 08 Nov 2018 08:53:02 GMT
On Tue, 2018-11-06 at 16:38 +0200, Sofiya Strochyk wrote:
> I have tested all of the suggested changes none of these seem to make
> a noticeable difference (usually response time and other metrics
> fluctuate over time, and the changes caused by different parameters
> are smaller than the fluctuations). What this probably means is that
> the heaviest task is retrieving IDs by query and not fields by ID. 

Barring anything overlooked, I agree on the query thing.

Were I to sit at the machine, I would try removing part of the query
until performance were satisfactory. Hopefully that would unearth very
few problematic parts, such as regexp, function or prefix-wildcard
queries. There might be ways to replace or tune those.

- Toke Eskildsen, Royal Danish Library

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