Grouping performance improvements
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Key: SOLR-2205
URL: https://issues.apache.org/jira/browse/SOLR-2205
Project: Solr
Issue Type: Sub-task
Components: search
Affects Versions: 4.0
Reporter: Martijn van Groningen
Fix For: 4.0
This issue is dedicated to the performance of the grouping functionality.
I've noticed that the code is not really performing on large indexes. Doing a
search (q=*:*) with grouping on an index from around 5M documents took around
one second on my local development machine. We had to support grouping on an
index that holds around 50M documents per machine, so we made some changes and
were able to happily serve that amount of documents. Patch will follow soon.
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