You should change the _version_ field to be of type docValues and re-index data. This way you don't have to pay the memory cost of un-inversion.
On Wed, Nov 18, 2020 at 9:51 AM sanjay dutt <sanjaydutt.in...@yahoo.com.invalid> wrote: > Solr Collection setup > Shards :- 2Replication :- 4Documents :- 569 Million (I know it's too > much)Heap Space :- 12GB > So basically, above collection is having OutOfMemory issues. And upon > inspection, I got to know > that org.apache.lucene.uninverting.FieldCacheImpl$LongsFromArray for field > "_version_" is taking around 50 - 60% memory(5GB). > Now I am trying to understand How "_version_" internally using the field > cache? > Around the same time, In Splunk logs I can see "Found MAX value from Terms > for _version_ in index". and also few "firstSearcher" queries. Now I think > upon core initialization "firstSearcher" triggered which then try to find > the Max value for version using Field Cache but because of too many records > it occupy lot of memory to carry out the task. > Can someone please validate Is what I am talking in above para is the > problem or problem lies in somewhere else? > > Best Regards,Sanjay > -- Regards, Shalin Shekhar Mangar.
