What is a Solr document?

What is a Solr document?

As previously explained, Solr is not a database, but is a document storage and retrieval engine that enhances existing databases. Every piece of data in Solr is a document; this is anything that can be retrieved from a database, which will have at least one field defined in the schema.

What is Solr used for?

Providing distributed search and index replication, Solr is designed for scalability and fault tolerance. Solr is widely used for enterprise search and analytics use cases and has an active development community and regular releases. Solr runs as a standalone full-text search server.

What is Solr and how it works?

Solr works by gathering, storing and indexing documents from different sources and making them searchable in near real-time. It follows a 3-step process that involves indexing, querying, and finally, ranking the results – all in near real-time, even though it can work with huge volumes of data.

What is included in an electronic health record?

An Electronic Health Record (EHR) is an electronic version of a patients medical history, that is maintained by the provider over time, and may include all of the key administrative clinical data relevant to that persons care under a particular provider, including demographics, progress notes, problems, medications.

Why Solr is fast?

For every value of a numeric field, Lucene stores several values with different precisions. This allows Lucene to run range queries very efficiently. Since your use-case seems to leverage numeric range queries a lot, this may explain why Solr is so much faster.

What does Solr mean in medical terms?

Solution Reconstituted (medical classification) SOLR. Shareable Online Learning Resources (British Columbia Campus; Canada) SOLR.

How is electronic medical records used in healthcare?

An electronic health record (EHR) is a digital version of a patient’s paper chart. EHRs are a vital part of health IT and can: Contain a patient’s medical history, diagnoses, medications, treatment plans, immunization dates, allergies, radiology images, and laboratory and test results.

How can I improve my Solr performance?

xml settings and avoid the most-common Solr search performance issues with Sitecore.

  1. Set the autoSoftCommit feature to 2 minutes.
  2. Set the autoCommit feature to 5 minutes.
  3. Use autowarmCount = 0 for All Cache Settings.
  4. Set maxRamMB to 200.
  5. Use the Default Values of True for Lazy Fields and Sorted Query.

Is Solr reliable?

Solr offers automatic load balancing, distributed reindexing, failover, and recovery queries. If implemented correctly and managed well, it can become a highly reliable, scalable, fault-tolerant search engine.

What is a SOLR node?

Node − In Solr cloud, each single instance of Solr is regarded as a node. Cluster − All the nodes of the environment combined together make a cluster. Collection − A cluster has a logical index that is known as a collection. Shard − A shard is portion of the collection which has one or more replicas of the index.

Which is the reference guide for Apache Solr?

The Apache Solr Reference Guide is the official Solr documentation. As of Solr 8.2, it is published only in HTML format. Prior to Solr 8.2, a PDF version was also published. You can access these older version from the Apache archives.

Which is contrib module does Solr use?

One of the contrib modules that Solr includes is called SolrCell. This module adds the Extracting Request Handler. This component utilizes Apache Tika to parse rich documents like PDF and Microsoft Office and index the document contents into Solr. The Tika software has had some security vulnerabilities.

What can I do with a default version of Solr?

A default/example installation of Solr allows any client with access to it to add, update, and delete documents (and of course search/read too), including access to the Solr configuration and schema files and the administrative user interface.

What are the CVEs for Solr 9.4.19?

Two CVEs, 2019-14540 & 2019-16335, are related to HikariConfig and HikariDataSource classes, neither of which are used in Solr’s code base. Solr upgraded to Jetty 9.4.19 for the 8.2 release.

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