Sandeep, This type of operation can often be expressed as a PostFilter very efficiently. This is particularly true if the region id's are integer keys.
Joel On Thu, Oct 24, 2013 at 7:46 AM, Sandeep Gupta <sandy....@gmail.com> wrote: > Hi, > > We have a Solr index of around 100 million documents with each document > being given a region id growing at a rate of about 10 million documents per > month - the average document size being aronud 10KB of pure text. The total > number of region ids are themselves in the range of 2.5 million. > > We want to search for a query with a given list of region ids. The number > of region ids in this list is usually around 250-300 (most of the time), > but can be upto 500, with a maximum cap of around 2000 ids in one request. > > > What is the best way to model such queries besides using an IN param in the > query, or using a Filter FQ in the query? Are there any other faster > methods available? > > > If it may help, the index is on a VM with 4 virtual-cores and has currently > 4GB of Java memory allocated out of 16GB in the machine. The number of > queries do not exceed more than 1 per minute for now. If needed, we can > throw more hardware to the index - but the index will still be only on a > single machine for atleast 6 months. > > Regards, > Sandeep Gupta > --