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{"id":598,"date":"2021-07-13T22:18:19","date_gmt":"2021-07-13T22:18:19","guid":{"rendered":"https:\/\/www.wikitechy.com\/interview-questions\/?p=598"},"modified":"2021-09-11T11:54:01","modified_gmt":"2021-09-11T11:54:01","slug":"what-is-the-difference-between-apache-hive-and-impala","status":"publish","type":"post","link":"https:\/\/www.wikitechy.com\/interview-questions\/hive\/what-is-the-difference-between-apache-hive-and-impala\/","title":{"rendered":"What is the Difference between apache hive and impala ?"},"content":{"rendered":"

Apache hive Vs Impala<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Apache hive<\/th>\nImpala<\/th>\n<\/tr>\n
Hive generates query expressions at compile
\ntime;Hive is batch based Hadoop MapReduce<\/td>\n		Impala does not support for complex types
\nand fault tolerance.<\/td>\n<\/tr>\n
Apache does not generations runtime code
\nfor \u201cbig loops \u201d using llvm.<\/td>\n		Impala does generations runtime code
\nfor \u201cbig loops \u201d using llvm.<\/td>\n<\/tr>\n
Hadoop 2.7.3<\/td>\nHadoop 2.6.0<\/td>\n<\/tr>\n
All queries run through LLAP<\/td>\nRuntime Filtering Optimization Enabled<\/td>\n<\/tr>\n
ORCFile format with zlib compression<\/td>\nParquet format with snappy compression<\/td>\n<\/tr>\n
Every hive query has this problem of \u201ccold start\u201d.<\/td>\nImpala avoids startup overhead as daemon
\nprocesses are started at boot time itself,
\nalways being ready to processes a query.<\/td>\n<\/tr>\n
Apache\u00a0Hive<\/b>\u00a0might not be ideal for interactive computing<\/td>\nImpala is meant for interactive computing.<\/td>\n<\/tr>\n
Hive<\/b>\u00a0is batch based Hadoop MapReduce.<\/td>\nImpala is more like MPP database.<\/td>\n<\/tr>\n
Hive<\/b>\u00a0supports complex types.<\/td>\nImpala<\/b>\u00a0does not support complex types.<\/td>\n<\/tr>\n
Apache Hive is fault tolerant.<\/td>\nImpala does not support fault tolerance.<\/td>\n<\/tr>\n
It is more universal, versatile and pluggable language.<\/td>\nIt is used unleash its brute processing power
\nand give lightning fast analytic results.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Answer : Hive generates query expressions at compile
\ntime…<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"passster_activate_protection":false,"passster_protect_child_pages":"","passster_protection_type":"password","passster_password":"","passster_activate_overwrite_defaults":"","passster_headline":"","passster_instruction":"","passster_placeholder":"","passster_button":"","passster_id":"","passster_activate_misc_settings":"","passster_redirect_url":"","passster_hide":"no","passster_area_shortcode":"","gtb_hide_title":false,"gtb_wrap_title":false,"gtb_class_title":"","gtb_remove_headerfooter":false,"footnotes":""},"categories":[3782],"tags":[195,971,3799,203,199,214,209,205,3974,222,484,621,620,3972,3882,196,3969,3970,3716,712,970,366,477,208,288,483,3819,976,975,200,974,197,280,364,3971,3973,3968,968,216,2119,969],"class_list":["post-598","post","type-post","status-publish","format-standard","hentry","category-hive","tag-accenture-interview-questions-and-answers","tag-altimetrik-india-pvt-ltd-interview-questions-and-answers","tag-ani-technologies-pvt-ltd-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-collabera-technologies-interview-questions-and-answers","tag-dell-international-services-india-pvt-ltd-interview-questions-and-answers","tag-explain-the-difference-between-sql-and-apache-hive","tag-flipkart-interview-questions-and-answers","tag-genpact-interview-questions-and-answers","tag-hive-query-based-interview-questions","tag-hive-scenario-based-interview-questions","tag-hive-vs-impala-vs-spark","tag-how-will-you-optimize-hive-performance","tag-ibm-interview-questions-and-answers","tag-impala-vs-hive-performance","tag-impala-vs-hive-vs-pig","tag-impetus-technologies-interview-questions-and-answers","tag-indiabulls-technology-solutions-ltd-interview-questions-and-answers","tag-mindtree-interview-questions-and-answers","tag-netapp-interview-questions-and-answers","tag-pig-interview-questions","tag-prokarma-softech-pvt-ltd-interview-questions-and-answers","tag-r-systems-interview-questions-and-answers","tag-reliance-industries-ltd-interview-questions-and-answers","tag-sqoop-interview-questions","tag-synechron-te-interview-questions-and-answers","tag-tata-consultancy-service-interview-questions-and-answers","tag-tech-mahindra-interview-questions-and-answers","tag-trigent-software-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-difference-between-hive-and-impala","tag-which-version-of-hadoop-introduced-yarn","tag-why-impala-is-faster-than-hive","tag-wipro-infotech-interview-questions-and-answers","tag-wipro-interview-questions-and-answers","tag-yash-technologies-interview-questions-and-answers","tag-yodlee-infotech-pvt-ltd-interview-questions-and-answers"],"yoast_head":"\nWhat is the Difference between apache hive and impala ?<\/title>\n<meta name=\"description\" content=\"What is the Difference between apache hive and impala ? 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