Luca Cavanna created SOLR-3443:
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Summary: Optimize hunspell dictionary loading with multiple cores
Key: SOLR-3443
URL: https://issues.apache.org/jira/browse/SOLR-3443
Project: Solr
Issue Type: Improvement
Reporter: Luca Cavanna
The Hunspell dictionary is actually loaded into memory. Each core using
hunspell loads its own dictionary, no matter if all the cores are using the
same dictionary files. As a result, the same dictionary is loaded into memory
multiple times, once for each core. I think we should share those dictionaries
between all cores in order to optimize the memory usage. In fact, let's say a
dictionary takes 20MB into memory (this is what I detected), if you have 20
cores you are going to use 400MB only for dictionaries, which doesn't seem a
good idea to me.
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