I have the next settings in my solrconfig.xml:

<filterCache class="solr.FastLRUCache"
                 size="512000"
                 initialSize="64000"
                 autowarmCount="32000"/>

<queryResultCache class="solr.LRUCache"
                 size="256000"
                 initialSize="32000"
                 autowarmCount="16000"/>

<documentCache class="solr.LRUCache"
                 size="128000"
                 initialSize="16000"
                 autowarmCount="8000"/>

What is the best way to calculate the optimal cache/heap sizes? I understand
there's no a common formula and all docs have different size but -Xmx is
already 12G.

Thanks,
Alex



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