What is the Solr field type definition for this field?  And what sort of
spatial data do you add here -- just points or what?

~ David Smiley
Apache Lucene/Solr Search Developer
http://www.linkedin.com/in/davidwsmiley


On Mon, Aug 3, 2020 at 10:09 PM sanjay dutt
<sanjaydutt.in...@yahoo.com.invalid> wrote:

> Hello Solr community,
> On our Production SolrCloud Server, OutOfMemory has been occurring on lot
> of instances. When I download the HEAP DUMP and analyzed it. I got to know
> that in multiple HEAP DUMPS there are lots of instances
> of org.apache.lucene.codecs.blocktree.BlockTreeTermsReader  which has the
> highest retained heap memory and further I have checked the
> outgoing-reference for those objects,
> the  org.apache.lucene.util.fst.FST is the one which occupy 90% of the heap
> memory.
> it's like
> Production HEAP memory :- 12GBout of
> which  org.apache.lucene.codecs.blocktree.BlockTreeTermsReader total retained
> heap :- 7-8 GB(vary from instance to
> instance)and org.apache.lucene.util.fst.FST total retained heap :- 6-7 GB
> Upon further looking I have calculated the total retained heap for
> FieldReader.fieldInfo.name="my_field" is around 7GB. Now this is the same
> reader which also contains reference to org.apache.lucene.util.fst.FST.
> Now "my_field" is the field on which we are performing spatial searches.
> Is spatial searches use FST internally and hence we are seeing lot of heap
> memory used by FST.l only.
> IS there any way we can optimize the spatial searches so that it take less
> memory.
> Can someone please give me any pointer that from where Should I start
> looking to debug the above issue.
> Thanks and Regards,Sanjay Dutt
> Sent from Yahoo Mail on Android

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