{"id":221,"date":"2021-07-12T09:24:15","date_gmt":"2021-07-12T09:24:15","guid":{"rendered":"https:\/\/www.wikitechy.com\/interview-questions\/?p=221"},"modified":"2021-09-14T10:44:41","modified_gmt":"2021-09-14T10:44:41","slug":"what-is-the-internal-architecture-of-apache-solr","status":"publish","type":"post","link":"https:\/\/www.wikitechy.com\/interview-questions\/apache-solr\/what-is-the-internal-architecture-of-apache-solr\/","title":{"rendered":"What is the internal architecture of Apache solr ?"},"content":{"rendered":"
\n
\n
\n
\n

Solr Architecture \u2500 Building Blocks<\/h2>\n<\/div>\n<\/div>\n

Following are the major building blocks of Apache Solr:<\/p>\n

\n
\"solr<\/div>\n<\/div>\n
\n
\n

Solr Architecture \u2500 Building Blocks Request Handler:<\/h2>\n<\/div>\n<\/div>\n
\n
\n
    \n
  • The requests that send to Solr are processed by the request handlers.<\/li>\n
  • The requests may be a query requests otherwise index update requests.<\/li>\n
  • It is based on our requirement; we need to choose the request handler.<\/li>\n
  • To pass a request to Solr, we generally map the handler to a certain URI end-point and the particular request will be served by it.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n
    \"how<\/div>\n
    \n
    \n

    Search Component:<\/h2>\n<\/div>\n<\/div>\n
    \n
    \n
      \n
    • The search component is a type of search provided in Apache Solr.<\/li>\n
    • It might be spell checking, faceting, query, and hit highlighting and so on.<\/li>\n
    • These search components are registered as search handlers. Multiple components can be registered to a search handler.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n
      \n
      \n

      Query Parser:<\/h2>\n<\/div>\n<\/div>\n
      \n
      \n
        \n
      • The Apache Solr query parser parses the queries that we pass to Solr and verifies the queries for syntactical errors.<\/li>\n
      • After parsing the queries, it translates them to a format which Lucene understands.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n
        \n
        \n

        Response Writer:<\/h2>\n<\/div>\n<\/div>\n
        \n
        \n
          \n
        • A response writer is the component which generates the formatted outcome for the user queries.<\/li>\n
        • Apache Solr supports response formats some are XML, JSON, CSV, etc.<\/li>\n
        • We have different response writers for each type of response.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n
          \n
          \n

          Analyser\/tokenizer:<\/h2>\n<\/div>\n<\/div>\n
          \n
          \n
            \n
          • Lucene recognizes data in the form of tokens.<\/li>\n
          • Apache Solr analyses the content, divides it into tokens, and passes these tokens to Lucene.<\/li>\n
          • An analyser examines the text of fields and generates a token stream.<\/li>\n
          • A tokenizer breaks the token stream prepared by the analyser into tokens.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n
            \n
            \n

            Update Request Processor:<\/h2>\n<\/div>\n<\/div>\n
            \n
            \n
              \n
            • Whenever we send an update request to Apache Solr, the request is run through a set of plugins (signature, logging, indexing), collectively known as update request processor.<\/li>\n
            • This processor is responsible for modifications that are adding a field, dropping a field, etc.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n
              \"apache<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

              Answer:The requests that send to Solr are processed by the request handlers.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[684],"tags":[195,718,702,707,722,491,203,199,214,198,363,209,205,222,723,196,212,712,213,700,710,207,711,366,361,204,282,367,206,699,704,694,697,719,695,714,720,716,717,715,721,698,200,197,280,364,701,713,285],"class_list":["post-221","post","type-post","status-publish","format-standard","hentry","category-apache-solr","tag-accenture-interview-questions-and-answers","tag-apache-solr-conceptual-architecture","tag-apache-solr-documentation","tag-apache-solr-download","tag-apache-solr-tutorial-step-by-step","tag-applied-materials-interview-questions-and-answers","tag-capgemini-interview-questions-and-answers","tag-casting-networks-india-pvt-limited-interview-questions-and-answers","tag-cgi-group-inc-interview-questions-and-answers","tag-chetu-interview-questions-and-answers","tag-ciena-corporation-interview-questions-and-answers","tag-collabera-technologies-interview-questions-and-answers","tag-dell-international-services-india-pvt-ltd-interview-questions-and-answers","tag-flipkart-interview-questions-and-answers","tag-how-to-use-solr-in-java-web-application","tag-ibm-interview-questions-and-answers","tag-indecomm-global-services-interview-questions-and-answers","tag-indiabulls-technology-solutions-ltd-interview-questions-and-answers","tag-infosys-technologies-interview-questions-and-answers","tag-lucene-architecture","tag-mavenir-interview-questions-and-answers","tag-mphasis-interview-questions-and-answers","tag-nagarro-software-pvt-ltd-interview-questions-and-answers","tag-netapp-interview-questions-and-answers","tag-opentext-technologies-interview-questions-and-answers","tag-oracle-corporation-interview-questions-and-answers","tag-persistent-systems-interview-questions-and-answers","tag-rbs-india-development-centre-pvt-ltd-interview-questions-and-answers","tag-sap-labs-india-pvt-ltd-interview-questions-and-answers","tag-scaling-apache-solr","tag-solr-architecture","tag-solr-architecture-diagram","tag-solr-architecture-document","tag-solr-architecture-overview","tag-solr-deployment-architecture","tag-solr-example-application","tag-solr-inverted-index","tag-solr-overview","tag-solr-search-example","tag-solr-tutorial","tag-solr-tutorial-example","tag-solrcloud-architecture","tag-tech-mahindra-interview-questions-and-answers","tag-unitedhealth-group-interview-questions-and-answers","tag-virtusa-consulting-services-pvt-ltd-interview-questions-and-answers","tag-wells-fargo-interview-questions-and-answers","tag-what-is-apache-solr","tag-wm-global-technology-services-india-pvt-ltd-interview-questions-and-answers","tag-xoriant-solutions-pvt-ltd-interview-questions-and-answers"],"yoast_head":"\nWhat is the internal architecture of Apache solr ? 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