David Boychuck created SOLR-6345:
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Summary: collapsingQParserPlugin degraded performance when using
tagging
Key: SOLR-6345
URL: https://issues.apache.org/jira/browse/SOLR-6345
Project: Solr
Issue Type: Bug
Affects Versions: 4.7.2
Reporter: David Boychuck
Priority: Critical
I ma having a problem with degraded performance when using the
collapseQParserPlugin with facet tagging.
An example query would look something like this
{code}
http://host:port/solr/index/handler?facet=true&fq={!collapse
field=groupid}&facet.query={!ex=Width_numeric}Width_numeric:[10+TO+15]&facet.query={!ex=Width_numeric}Width_numeric:[15+TO+20]&facet.sort=index&start=0&q=36+x+42+shower+base&fq={!tag%3DWidth_numeric}Width_numeric:[35+TO+40]
{code}
When I either remove the grouping
{code}
fq={!collapse field=groupid}
{code}
or remove the tag
{code}
&fq={!tag%3DWidth_numeric}Width_numeric:[35+TO+40]
{code}
I am getting requests orders of magnitude faster. In my production environment
with around 800k documents. I jump from less than 20ms to over 100ms sometimes
200ms using the collapsingQParserPlugin with tagging. I will try to see of the
problem can be observed in the unit tests for the collapsingQParserPlugin. I
will update with the results.
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