Best way to take the back up of hive partitioned table into a disk<\/h2>\n<\/div>\n<\/div>\n

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• Partitioning is the optimization technique in Hive which improves the performance significantly.<\/li>\n
• Apache Hive is the data warehouse on the top of Hadoop, which enables ad-hoc analysis over structured and semi-structured data<\/li>\n
• Apache Hive organizes tables into partitions.Partitioning is dividing a table into connected components based on the values of specific columns like date, city, and department.<\/li>\n
• Each table in hive can have one or additional partition keys to identify a particular partition. using partition it is easy to do queries on slices of the data.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n
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  The Hadoop Distributed File System considered reliable from a technical failure purpose of view, but to archive data you need to copy it offline, with copyToLocal, or copy the data to another cluster or another location on the cluster.<\/div>\n<\/div>\n

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  For copyToLocal the command syntax is:<\/h2>\n<\/div>\n

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  hadoop<\/span> fs<\/span> -copyToLocal<\/span> [-ignorecrc]<\/span> [-crc]<\/span> URI<\/span> <localdst<\/span>><\/span><\/code><\/pre>\n<\/figure>\n<\/div>\n<\/div>\n
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  Additionally, you can use Hive to copy data from a table to local directory.<\/p>\n<\/div>\n<\/div>\n
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  INSERT OVERWRITE LOCAL DIRECTORY '\/tmp\/local_out'<\/span> SELECT a.* FROM wikitechy  where<\/span> year=2018<\/span><\/span><\/code><\/pre>\n<\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
  Answer : Partitioning is the optimization technique in Hive which improves the performance significantly.<\/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":[195,971,3799,3931,203,199,214,3928,209,3786,205,222,484,3923,3924,3926,3925,621,620,3929,3930,3927,3922,196,3716,712,970,366,208,288,483,976,975,200,974,197,280,364,968,216,2119,969],"class_list":["post-585","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-backup-hive-metastore-mysql","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-clone-database-hive","tag-collabera-technologies-interview-questions-and-answers","tag-data-of-partitioned-columns-in-hive-is-physically-present","tag-dell-international-services-india-pvt-ltd-interview-questions-and-answers","tag-flipkart-interview-questions-and-answers","tag-genpact-interview-questions-and-answers","tag-hive-copy-data-from-one-table-to-another","tag-hive-copy-table-definition","tag-hive-copy-tables-from-one-database-to-another","tag-hive-export-database","tag-hive-query-based-interview-questions","tag-hive-scenario-based-interview-questions","tag-how-to-backup-hive-database","tag-how-to-backup-hive-metastore-database","tag-how-to-move-data-from-one-table-to-another-in-hive","tag-how-to-take-backup-of-hive-database","tag-ibm-interview-questions-and-answers","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-prokarma-softech-pvt-ltd-interview-questions-and-answers","tag-r-systems-interview-questions-and-answers","tag-reliance-industries-ltd-interview-questions-and-answers","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-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":"\n