Steve,
Another thing debugQuery will give you is a breakdown of how much each
field contributed to the final score of each hit. That's going to give you
a nice shopping list of qf to weed out.
k/r,
Scott
On Fri, Nov 20, 2015 at 9:26 AM, Mikhail Khludnev <
mkhlud...@griddynamics.com> wrote:
> H
Hello Steve,
debugQuery=true shows whether it's facets or query, whether it's query
parsing or searching (prepare vs process), cache statistics can tell about
its' efficiency; sometimes a problem is obvious from request parameters.
Simple sampling with jconsole or even by jstack can point on a smo
Thanks Erick.
The 1500 fields is a design that I inherited. I'm trying to figure out why
it was done as such and what it will take to fix it.
What about my other question: how does one go about debugging performance
issues in Solr to find out where time is mostly spent? How do I know my
Solr pa
An fq is still a single entry in your filterCache so from that
perspective it's the same.
And to create that entry, you're still using all the underlying fields
to search, so they have to be loaded just like they would be in a q
clause.
But really, the fundamental question here is why your design
The implementation for fq has changed from 4.x to 5.x, so I’ll let someone else
answer that in detail.
In 4.x, the result of each filter query can be cached. After that, they are
quite fast.
wunder
Walter Underwood
wun...@wunderwood.org
http://observer.wunderwood.org/ (my blog)
> On Nov 19,
Thanks Walter. I see your point. Does this apply to fq as will?
Also, how does one go about debugging performance issues in Solr to find
out where time is mostly spent?
Steve
On Thu, Nov 19, 2015 at 6:54 PM, Walter Underwood
wrote:
> With one field in qf for a single-term query, Solr is fetc
With one field in qf for a single-term query, Solr is fetching one posting
list. With 1500 fields, it is fetching 1500 posting lists. It could easily be
1500 times slower.
It might be even slower than that, because we can’t guarantee that: a) every
algorithm in Solr is linear, b) that all those
