Apache Solr interview questions
Q1. What is Apache Solr?
Ans: It is a standalone complete text search server which applications communicate with using XML and HTTP to index files, or execute searches. It is used to help a rich schema specification that is used to allow for a extensive variety of flexibleness in managing extraordinary file fields, and has an extensive search plugin API for developing custom seek behavior.
Q2. Which report contains configuration for facts directory?
Ans: solrconfig.Xml document incorporates configuration for records directory.
Q3. Which document consists of definition of the sector kinds and fields of documents?
Ans: schema.Xml file carries definition of the sector kinds and fields of files.
Q4. What are the features of Apache Solr?
Ans: The capabilities of apache solr are:
Near actual-time indexing
Standards-based open interfaces like XML, JSON and HTTP
Flexible and adaptable, with XML configuration
Advanced full-text seek
Linearly scalable, car index replication, vehicle failover and recuperation
Comprehensive HTML management interfaces
Q5. What is Apache lucene?
Ans: Apache lucene is a full featured, High performance text seek engine library that's written in java.
Q6. What is request handler?
Ans: When a consumer runs a seek in solr, the search query is processed by using a request handler. It is a solr plugin that defines the common sense for use whilst solr processes a request.
Q7. What is the gain of general query parser?
Ans: The gain of general question parser is that it is used to permit customers to specify very particular queries.
Q8. Explain Faceting?
Ans: It is the association of seek effects into classes based on listed terms.
Q9. What is using discipline kind?
Ans: Field type defines how solr must interpret records in a subject and the way the field can be queried.
Q10. Which information is blanketed in filed kind?
Ans: A area kind consists of 4 forms of statistics:
The name of field kind
An implementation class name
If the sphere type is TextField , a description of the sector evaluation for the field type.
Q11. Define Dynamic Field?
Ans: It is used to allow solr to index fields which you did no longer explicitly define within the schema.
Q12. What is analyzer?
Ans: An Analyzer is used to look at text of fields and generates a token movement.
Q13. What is the usage of tokenizer?
Ans: It is used to break up a movement of textual content into tokens, wherein every token is a sub series of characters in the textual content.
Q14. What is phonetic filter?
Ans: This filter out is used to create tokens the use of one of the phonetic encoding algorithms inside the org.Apache.Commons.Codec.Language bundle.
Q15. What is SolrCloud?
Ans: Apache solr consists of the capacity to installation a cluster of solr servers that combines fault tolerance excessive availability referred to as SolrCloud.
Q16. What is copying area?
Ans: It is used to explain a way to populate fields with information copied from some other subject.
Q17. What is Highlighting?
Ans: It is used to provide the special data approximately Solr’s highlighting utilities.
Q18. Give the name of different varieties of highlighters?
Ans: There are 3 highlighters:
Q19. What is the usage of stats.Discipline?
Ans: It is used to generate statistics over the effects of arbitrary numeric functions.
Q20. To see a way to use the bin/solr script which command is used?
Ans: Execute $ bin/solr –helpto see the way to use the bin/solr script.
Q21.Which syntax is used to prevent solr?
Ans: $ bin/solr forestall -p 8983 is used to prevent solr.
Q22. Which command is used to start solr in foreground?
Ans: $ bin/solr begin –f is used to begin solr in foreground.
Q23. To Check if Solr is running which syntax is used?
Ans: $ bin/solr popularity is used to test solr strolling status.
Q24. To begin the server which syntax is used?
Ans: $ bin/solr start is used to begin the server.
Q25. How to shut down apache solr?
Ans: To shut down Solr from the terminal where you released Solr,then click on Ctrl+C.
Q26. What information is particular with the aid of Schema?
Ans: Schema proclaims:
How to index and seek every area
What forms of fields there are
Which fields are required
Which discipline have to be used because the precise/primary key
Q27. Give the call of fundamental Field types in Solr?
Ans: Basic subject type in solr is:
Q28. How to install solr?
Ans: It has 3 steps:
Server-associated documents, e.G. Tomcat or start.Jar (Jetty)
Solr webapp as a .Conflict
Solr Home which contains the records directory and configuration documents.
Q29. What are the critical configuration files of solr?
Ans: There are 2 maximum important configuration files of solr:
Q30. What are the most not unusual factors in solrconfig.Xml?
Ans: The maximum not unusual elements in solrconfig.Xml are:
Data listing area