On 3/11/2014 6:14 AM, abhishek.netj...@gmail.com wrote: > Hi all, > What should be the ideal RAM index size ratio. > > please reply I expect index to be of size of 60 gb and I dont store contents.
Ideally, your total system RAM will be equal to the size of all your program's heap requirements, plus the size of all the data for all the programs. If Solr is the only thing on the box, then the ideal memory size is roughly the Solr heap plus the size of all the Solr indexes that live on that machine. So if your heap is 8GB and your index is 60GB, you'll want at least 68GB of RAM for an ideal setup. I don't know how big your heap is, so I am guessing here. You said your index does not store much content. That means you will need a higher percentage of your total index size to be in RAM for good performance. I would estimate that you want a minimum of two thirds of your index in RAM, which indicates a minimum RAM size of 48GB if we assume your heap is 8GB. 64GB would be better. http://wiki.apache.org/solr/SolrPerformanceProblems#General_information Thanks, Shawn
