Some index structures are statistics of the entire index, so they don’t belong to one part of it.
So the number you are asking for doesn’t exist. Lucene indexes don’t work like that. If you made an index with the documents from one tenant, it would not be the same size as the fraction of a shared index. Your best approach is to get the entire disk usage and assign the portion of the that by the portion of docs belonging to a tenant. But to back up one step, what are you doing with that information? Disk space is not a useful or stable metric for indexes. It varies with the number of deleted documents, changes during and after merges, and you need extra unused disk space for Solr to function. That unused space must be dedicated to Solr, so should be counted even though it doesn’t have index files on it right now. Solr Cloud needs transaction logs even though those aren’t officially part of the index. All of that means that there is no API for one tenant’s part of the disk space and there won’t be an API for it. The question doesn’t make sense for a Solr system. wunder Walter Underwood [email protected] http://observer.wunderwood.org/ (my blog) > On Apr 5, 2021, at 1:17 PM, Natarajan, Rajeswari > <[email protected]> wrote: > > I guess you mean number of documents ,not the size of index in disk. We are > looking for size of index in disk. > > Thanks, > Rajeswari > > On 4/5/21, 10:32 AM, "Walter Underwood" <[email protected]> wrote: > > Assuming each tenant has an ID, you can get the size by searching for > tenant_id:1234 and requesting zero rows. We do that for metrics for different > document types in the same collection. > > wunder > Walter Underwood > [email protected] > http://observer.wunderwood.org/ (my blog) > >> On Apr 5, 2021, at 10:02 AM, Natarajan, Rajeswari >> <[email protected]> wrote: >> >> Yes, that's correct . >> >> Thanks, >> Rajeswari >> >> On 4/5/21, 6:21 AM, "Jan Høydahl" <[email protected]> wrote: >> >> Why not the obious design choice of one collection per tenant? Are you >> afraid of Solr not handling a large number of collections? >> >> Jan >> >>> 5. apr. 2021 kl. 06:59 skrev Natarajan, Rajeswari >>> <[email protected]>: >>> >>> Hi, >>> >>> We plan to store multiple tenants in a single collection (multiple shards) >>> with a composite Id router with docId prefix as tenant id. >>> In this set up, how can a tenant’s index size be found. Solr metrics api >>> gives the core’s index size .But in same core multiple tenants might be >>> present. >>> Would like to know if there is any out of box solr api available for this >>> case. >>> >>> >>> Thanks, >>> Rajeswari
