What is spatial search in Solr?
What is spatial search in Solr?
Solr supports location data for use in spatial/geospatial searches. Using spatial search, you can: Index points or other shapes. Filter search results by a bounding box or circle or by other shapes. Sort or boost scoring by distance between points, or relative area between rectangles.
What is a spatial search?
Spatial search (also called geospatial search) allows you to take data that has a geographic location & enhance the search results by limiting them to a physical area.
Why does Solr need ZooKeeper?
SolrCloud is flexible distributed search and indexing, without a master node to allocate nodes, shards and replicas. Instead, Solr uses ZooKeeper to manage these locations, depending on configuration files and schemas. Queries and updates can be sent to any server.
What is core and collection in Solr?
Collection is a logical index spread across multiple servers. Core is that part of server which runs one collection. In non-distributed search, Single server running the Solr can have multiple collections and each of those collection is also a core. So collection and core are same if search is not distributed.
Does Netflix use SOLR?
Netflix uses Solr for their site search feature. Panasonic Europe uses Solr to power the search and faceted navigation on it’s sites for 30 countries.
How is Solr used in a spatial search?
Solr supports location data for use in spatial/geospatial searches. Sort or boost scoring by distance between points, or relative area between rectangles Generate a 2D grid of facet count numbers for heatmap generation or point-plotting.
How is Solr spatial clustering based on GVM?
It addresses the problem of reducing the amount of displayed markers on a map, described as Spatial Clustering , using a distance-based clustering algorithm based on GVM. The search component aggregates all possible search results to a maximum amount of pins and adds this information to the standard search result representation.
Is there a distance based clustering algorithm for Solr?
This project offers a distance-based spatial clustering search component for Apache Solr. It addresses the problem of reducing the amount of displayed markers on a map, described as Spatial Clustering , using a distance-based clustering algorithm based on GVM.
What do you need to know about Solr 2155?
See the FunctionQuery page for more information and look for hsin, ghhsin and others. SOLR-2155 Refers to an issue in JIRA that uses spatial search techniques based on edge n-gram’ed geohashes with a PrefixTree /Trie search algorithm. SOLR-2155 started out as a patch to Solr trunk, but that part of it is ancient history now.