I see, but I'm running on Windows. Is the behavior similar, or does this not exist on Windows?
On Wednesday, November 26, 2014 1:01:02 PM UTC-6, Nikolas Everett wrote: > > Lucene runs in the same JVM as Elasticsearch but (by default) it mmaps > files and then iterates over their content inteligently. That means most > of its actual storage is "off heap" (its a java buzz-phrase). Anyway, > Linux will serve reads from mmaped files from its page cache. That is why > you want to leave linux a whole bunch of unused memory. > > Nik > > On Wed, Nov 26, 2014 at 1:53 PM, BradVido <[email protected] > <javascript:>> wrote: > >> I've read the recommendations for ES_HEAP_SIZE >> <http://www.elasticsearch.org/guide/en/elasticsearch/guide/current/heap-sizing.html> >> which >> basically state to set -Xms and -Xmx to 50% physical RAM. >> It says the rest should be left for Lucene to use (OS filesystem >> caching). >> But I'm confused on how Lucene uses that. Doesn't Lucene run in the same >> JVM as ES? So they would share the same max heap setting of 50%. >> >> Can someone clear this up? >> >> -- >> You received this message because you are subscribed to the Google Groups >> "elasticsearch" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/elasticsearch/4c0b4045-74d4-400a-b636-e150a1261be4%40googlegroups.com >> >> <https://groups.google.com/d/msgid/elasticsearch/4c0b4045-74d4-400a-b636-e150a1261be4%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> For more options, visit https://groups.google.com/d/optout. >> > > -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/b7c67641-6a83-428c-91d2-10bbb6d17f0f%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
