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Jacek Plebanek updated SOLR-3799: --------------------------------- Description: Following discussion on dev@lucene.apache.org (http://mail-archives.apache.org/mod_mbox/lucene-dev/201205.mbox/%3caba41fbe-72a8-467e-bf33-3d0ca1ed8...@cominvent.com%3E , http://mail-archives.apache.org/mod_mbox/lucene-dev/201208.mbox/%3C1345800198.2303.68.camel@oo%3E) i would like to introduce the idea of Federated Search in Solr. It would be nice to have support for real Federated Search in Solr - very helpfull for people who would like to include some external search results in their Solr-based system. By Federated Search i mean searching across not only distributed Solr instances (existing DistributedSearch in Solr) but also other kind of external search services. Typical federated search process includes: - collection selection step - results merging - adapters for external collections connection - collections representations (used in collection selection and/or result merging) I'm thinking about creating full solution with basic example implementation of each module. Things to do that comes to my mind are: 1. federated request support in SearchHandler: the place where everything is tight up. 2. CollectionSelectionComponent: which should be independent, so one can use it separately. 3. federated search support in QueryComponent: with no hard-coded agorithms if it's possible. 4. Results merging rules module: as pluggable part of QueryComponent or as separate MergingComponent. 5. Adapter (connector) to external collection: interface and example implementation. 6. Collections representation: interface and default implementation: Used to store informations about indexes/collections. The typical use case would look like this: - user sends search request - Solr decides to which indexes delegate the request (collection selection): for example by comparing user's query with collection representations. - Solr decides how many and which documents get from each collection (merge rules): for example by using previous step results. - Solr sends user's query to collections (Solr instances and/or external collections through dedicated adapters) - Solr merges and retuns the results. Design requirements: - lightweight implementation - designed as Solr feature, not as something on top of Solr or as Solr extension - easy to use and customize out of the box - allow for extension/reimplementation by users Any suggestions/discussions welcome! was: Following discussion on dev@lucene.apache.org (http://mail-archives.apache.org/mod_mbox/lucene-dev/201205.mbox/%3caba41fbe-72a8-467e-bf33-3d0ca1ed8...@cominvent.com%3E , http://mail-archives.apache.org/mod_mbox/lucene-dev/201208.mbox/%3C1345800198.2303.68.camel@oo%3E) i would like to introduce the idea of Federated Search in Solr. It would be nice to have support for real Federated Search in Solr - very helpfull for people who would like to include some external search results in their Solr-based system. By Federated Search i mean searching across not only distributed Solr instances (existing DistributedSearch in Solr) but also other kind of external search services. Typical federated search process includes: - collection selection step - results merging - adapters for external collections connection - collections representations (used in collection selection and/or result merging) I'm thinking about creating full solution with basic example implementation of each module. Things to do that comes to my mind are: 1. federated request support in SearchHandler: the place where everything is tight up. 2. CollectionSelectionComponent: which should be independent, so one can use it separately. 3. federated search support in QueryComponent: with no hard-coded agorithms if it's possible. 4. Results merging rules module: as pluggable part of QueryComponent or as separate MergingComponent. 5. Adapter (connector) to external collection: interface and example implementation. 6. Collections representation: interface and default implementation: Used to store informations about indexes/collections. The typical use case would look like this: - user sends search request - Solr decides to which indexes delegate the request (collection selection): for example by comparing user's query with collection representations. - Solr decides how many and which documents get from each collection (merge rules): for example by using previous step results. - Solr sends user's query to collections (Solr instances and/or external collections through dedicated adapters) - Solr merges and retuns the results. Design requirements: - lightweight implementation - designed as Solr feature, not as something on top of Solr or as Solr extension - easy to use and customize out of the box - allow for extension/reimplementation by users > Federated search support - include documents from external collections in > Solr search results. > ---------------------------------------------------------------------------------------------- > > Key: SOLR-3799 > URL: https://issues.apache.org/jira/browse/SOLR-3799 > Project: Solr > Issue Type: New Feature > Components: SearchComponents - other > Affects Versions: 5.0 > Reporter: Jacek Plebanek > Labels: features, federated_search > Fix For: 5.0 > > > Following discussion on dev@lucene.apache.org > (http://mail-archives.apache.org/mod_mbox/lucene-dev/201205.mbox/%3caba41fbe-72a8-467e-bf33-3d0ca1ed8...@cominvent.com%3E > , > http://mail-archives.apache.org/mod_mbox/lucene-dev/201208.mbox/%3C1345800198.2303.68.camel@oo%3E) > i would like to introduce the idea of Federated Search in Solr. > It would be nice to have support for real Federated Search in Solr - very > helpfull for people who would like to include some external search results in > their Solr-based system. > By Federated Search i mean searching across not only distributed Solr > instances (existing DistributedSearch in Solr) but also other kind of > external search services. > Typical federated search process includes: > - collection selection step > - results merging > - adapters for external collections connection > - collections representations (used in collection selection and/or result > merging) > I'm thinking about creating full solution with basic example implementation > of each module. > Things to do that comes to my mind are: > 1. federated request support in SearchHandler: the place where everything is > tight up. > 2. CollectionSelectionComponent: which should be independent, so one can use > it separately. > 3. federated search support in QueryComponent: with no hard-coded agorithms > if it's possible. > 4. Results merging rules module: as pluggable part of QueryComponent or as > separate MergingComponent. > 5. Adapter (connector) to external collection: interface and example > implementation. > 6. Collections representation: interface and default implementation: Used to > store informations about indexes/collections. > The typical use case would look like this: > - user sends search request > - Solr decides to which indexes delegate the request (collection selection): > for example by comparing user's query with collection representations. > - Solr decides how many and which documents get from each collection (merge > rules): for example by using previous step results. > - Solr sends user's query to collections (Solr instances and/or external > collections through dedicated adapters) > - Solr merges and retuns the results. > Design requirements: > - lightweight implementation > - designed as Solr feature, not as something on top of Solr or as Solr > extension > - easy to use and customize out of the box > - allow for extension/reimplementation by users > Any suggestions/discussions welcome! -- This message is automatically generated by JIRA. 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