Re: Safe to change numVersionBuckets?

2018-03-30 Thread Shawn Heisey
On 3/30/2018 10:24 PM, Randy Fradin wrote: I understand from reading the discussion in SOLR-6820 that 65536 is the recommended default for this setting now because it results in higher document write rates than the old default of 256. I would like to reduce my heap utilization and I'm OK with

Safe to change numVersionBuckets?

2018-03-30 Thread Randy Fradin
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