I have a SolrCloud cluster (version 6.5.1) with around 3300 cores per
instance. I've been investigating what is driving heap utilization since it
is higher than I expected. I took a heap dump and found the largest driver
of heap utilization is the array of VersionBucket objects in the
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> Original message
> From: Randy Fradin <randy.fra...@gmail.com>
> Date: 10/16/17 7:38 PM (GMT-05:00)
> To: solr-user@lucene.apache.org
> Subject: [EXTERNAL] Re
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"invariants":{
"wt":"graphml",
"distrib":false},
"name":"/graph"},
"/stream":{
"class":"solr.StreamHandler",
"useParams":"_STREAM",
We are seeing a lot of full GC events and eventual OOM errors in Solr
during indexing. This is Solr 6.5.1 running in cloud mode with a 24G heap.
At these times indexing is the only activity taking place. The collection
has 4 shards and 2 replicas across 3 nodes. Each document is ~10KB (a few
