Hi again, I would still keep all fields in the original schema of the global Solr, just for the sake of simplicity.
For custom sort order, you can look at ExternalFileField which is a text file that you can add to your local Solr index independently of the pre-built index. However, this only supports float and cannot be returned in result. http://lucene.apache.org/solr/api/org/apache/solr/schema/ExternalFileField.html The Solr replication does a binary copy of the index - i.e. no way to change docs in input. But if you instead replicate source XML feed from master to slaves, you can hook into that stream to modify/add fields (see http://wiki.apache.org/solr/SolrConfigXml#UpdateRequestProcessorChain_section). But then you need to index locally of course. 1.5 mill docs isn't that much, so why not? -- Jan Høydahl - search architect Cominvent AS - www.cominvent.com On 10. feb. 2010, at 10.22, Julian Hille wrote: > Hi, > > its would be possible to add that to the main solr but the problem is: > Lets face it (example): > We have kind of 1.5 million documents in the solr master. These Documents are > books. > These books have fields like title, ids, numbers and authors and more. > This solr is global. > > Now: The slave solr is for a local library which has all these books, but > want to sort in another way, > and wants to add their own fields. For sorting and output (these fields > doesnt need to be indexed or searched through). > > So we try to replicate the whole database but have a slightly differen > schema.xml in the slaves. > > > Secondly we need for another Project to know if its possible to change data > "oninsert", "onupdate". > So that the replicationed data gets edited before its really inserted. Is > there some kind of hook? > As an exmaple lets take the book example from top: > On replication the slave gets a updated document set. But before updated on > the the slaves db > we like to add fields which come from another database or we like to replace > strings in some fields and such things. > > Is that possible? > > Thanks for any answers. > > > > Am 09.02.2010 um 16:53 schrieb Jan Høydahl / Cominvent: > >> Hi, >> >> Index replication in Solr makes an exact copy of the original index. >> Is it not possible to add the 6 extra fields to both instances? >> An alternative to replication is to feed two independent Solr instances -> >> full control :) >> Please elaborate on your specific use case if this is not useful answer to >> you. >> >> -- >> Jan Høydahl - search architect >> Cominvent AS - www.cominvent.com >> >> On 9. feb. 2010, at 13.21, Julian Hille wrote: >> >>> Hi, >>> >>> id like to know if its possible to have a solr Server with a schema and >>> lets say 10 fields indexed. >>> I know want to replicate this whole index to another solr server which has >>> a slightly different schema. >>> There are additional 6 fields these fields change the sort order for a >>> product which base is our solr database. >>> >>> Is this kind of replication possible? >>> >>> Is there another way to interact with data in solr? We'd like to calculate >>> some fields when they will be added. >>> I cant seem to find a good documentation about the possible calls in the >>> query itself nor documentaion about queries/calculation which should be >>> done on update. >>> >>> >>> so far, >>> Julian Hille >>> >>> >>> --------------------------------------------------------------- >>> NetImpact KG >>> Altonaer Straße 8 >>> 20357 Hamburg >>> >>> Tel: 040 / 6738363 2 >>> Mail: jul...@netimpact.de >>> >>> Geschäftsführer: Tarek Müller >>> > > Mit freundlichen Grüßen, > Julian Hille > > > --------------------------------------------------------------- > NetImpact KG > Altonaer Straße 8 > 20357 Hamburg > > Tel: 040 / 6738363 2 > Mail: jul...@netimpact.de > > Geschäftsführer: Tarek Müller >
