Hi Reinaldo, Glad that helped. I've had several sleepless nights with Solr clusters failing spectacularly in production due to that but I still cannot say that the problem is completely away.
Did you check in the heap dump if you have cache memory leaks as described in https://issues.apache.org/jira/browse/SOLR-12743? Say you have 4 cache instances (filterCache, documentCache etc) per core and you have 5 Solr cores you should not see more than 20 CaffeineCache instances in your dump. Unfortunately I still cannot determine what exactly triggers this memory leak although since I removed the maxRAMMB setting I've not seen similar behavior for more than a month now in production. The weird thing is that I was running on Solr 7.5.0 for quite some time without any issues and it was at some point in time that those problems started appearing... -- Sent from: https://lucene.472066.n3.nabble.com/Solr-User-f472068.html
