{"id":20272,"date":"2013-05-10T12:51:47","date_gmt":"2013-05-10T07:21:47","guid":{"rendered":"http:\/\/vskills.in\/certification\/tutorial\/?p=20272"},"modified":"2024-04-12T14:16:38","modified_gmt":"2024-04-12T08:46:38","slug":"cassandras-need-and-advantages","status":"publish","type":"page","link":"https:\/\/www.vskills.in\/certification\/tutorial\/cassandras-need-and-advantages\/","title":{"rendered":"Cassandra\u2019s need and advantages"},"content":{"rendered":"<p><a class=\"vsc\" href=\"http:\/\/www.vskills.in\/certification\/Certified-Cassandra-Professional\"><span class=\"vsc-cn\" style=\"text-align: center;\"><span style=\"color: red;\">Certify and Increase Opportunity.<\/span><br \/>\n<span style=\"color: green;\">Be <\/span><br \/>\nGovt. Certified Apache Cassandra Professional<br \/>\n<\/span><\/a><\/p>\n<p style=\"text-align: center;\"><a ref=\"magnificPopup\" href=\"http:\/\/vskills.in\/certification\/tutorial\/wp-content\/uploads\/2013\/05\/Apache-Cassandra.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-32241\" src=\"http:\/\/vskills.in\/certification\/tutorial\/wp-content\/uploads\/2013\/05\/Apache-Cassandra.jpg\" alt=\"Apache Cassandra\" width=\"276\" height=\"182\"><\/a><\/p>\n<p>&nbsp;The need for Apache Cassandra is felt due to it&#8217;s various features which are addressed as &#8211;<\/p>\n<ul>\n<li><strong>Elastic scalability<\/strong> \u2013 Easily scales to terabytes and petabytes of data (even more if you need it). Can handle billions of columns per row and millions of operations per day. Scales down just as readily.<\/li>\n<li><strong>Distributed database design with no single point of failure<\/strong> \u2013 Uses distributed architecture with no single point of failure (as with traditional master\/slave RDBMS and other NoSQL solutions). The result \u2013 continuous availability for business-critical big data applications that can\u2019t afford to ever go down.<\/li>\n<li><strong>Blistering linear performance<\/strong> \u2013 Enables sub-second response times with linear scalability (double your throughput with two nodes, quadruple it with four, and so on) to deliver the blink-of-an-eye speed your customers have come to expect.<\/li>\n<li><strong>Flexible, dynamic schema<\/strong> \u2013 Easily accommodates the full range of data formats \u2013 structured, semi-structured and unstructured \u2013 coursing through today\u2019s big data applications. Also dynamically accommodates changes to schema as your data needs evolve.<\/li>\n<li><strong>Multiple datacenter and cloud readiness<\/strong> \u2013 Gives you maximum flexibility to distribution wherever you need to by replicating easily across multiple datacenters, the cloud and even mixed cloud\/on-premise environments.<\/li>\n<li><strong>Location independence<\/strong> \u2013 Enables data to be read from and written to any node in a database no matter where it happens to be on the planet, a common requirement of big data environments when database clusters often span multiple geographies and datacenters.<\/li>\n<li><strong>Tunable data consistency<\/strong> \u2013 Provides a means for \u201ctuning\u201d the level of consistency required (from very strong to eventual consistency) for individual use cases and available on a per-operation basis.<\/li>\n<li><strong>Basic transaction support<\/strong> \u2013 Delivers the \u201cD\u201d in ACID compliance through its use of a commit log to capture all writes and built-in redundancies that ensure data durability in the event of hardware failures, as well as transaction isolation, atomicity, with consistency being tunable.<\/li>\n<\/ul>\n<p>Various advanatages are provided by Apache Cassandra for big data related processing and querying which usually includes the following<\/p>\n<ul>\n<li>Decentralized &#8211; Every node in the cluster has the same role. There is no single point of failure. Data is distributed across the cluster (so each node contains different data), but there is no master as every node can service any request.<\/li>\n<\/ul>\n<ul>\n<li>Supports replication and multi data center replication &#8211; Replication strategies are configurable. Cassandra is designed as a distributed system, for deployment of large numbers of nodes across multiple data centers. Key features of Cassandra\u2019s distributed architecture are specifically tailored for multiple-data center deployment, for redundancy, for failover and disaster recovery.<\/li>\n<li>Scalability &#8211; Read and write throughput both increase linearly as new machines are added, with no downtime or interruption to applications.<\/li>\n<li>Fault-tolerant &#8211; Data is automatically replicated to multiple nodes for fault-tolerance. Replication across multiple data centers is supported. Failed nodes can be replaced with no downtime.<\/li>\n<li>Tunable consistency &#8211; Writes and reads offer a tunable level of consistency, all the way from &#8220;writes never fail&#8221; to &#8220;block for all replicas to be readable&#8221;, with the quorum level in the middle.<\/li>\n<li>MapReduce support &#8211; Cassandra has Hadoop integration, with MapReduce support. There is support also for Apache Pig and Apache Hive.<\/li>\n<li>Query language &#8211; CQL (Cassandra Query Language) was introduced, a SQL-like alternative to the traditional RPC interface. Language drivers are available for Java (JDBC), Python (DBAPI2) and Node.JS (Helenus).<\/li>\n<\/ul>\n<div class=\"apply\">\n<h3>Apply for Apache Cassandra Certification Now!!<\/h3>\n<p><a href=\"http:\/\/www.vskills.in\/certification\/Certified-Cassandra-Professional\">http:\/\/www.vskills.in\/certification\/Certified-Apache-Cassandra-Professional<\/a><\/p>\n<h3>Go To Tutorial- <a href=\"https:\/\/www.vskills.in\/certification\/tutorial\/apache-cassandra-professional\/\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Certified Apache Cassandra Professional Tutorial<\/strong><\/a><\/h3>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Certify and Increase Opportunity. Be Govt. Certified Apache Cassandra Professional &nbsp;The need for Apache Cassandra is felt due to it&#8217;s various features which are addressed as &#8211; Elastic scalability \u2013 Easily scales to terabytes and petabytes of data (even more if you need it). Can handle billions of columns per row and millions of operations&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[63],"tags":[],"class_list":["post-20272","page","type-page","status-publish","hentry","category-apache-cassandra"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Cassandra\u2019s need and advantages - Tutorial<\/title>\n<meta name=\"description\" content=\"Cassandra\u2019s need and advantages Vskills Government Certification in Apache Cassandra is very popular in India amongst developers working in the IT Bid data industry.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.vskills.in\/certification\/tutorial\/cassandras-need-and-advantages\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cassandra\u2019s need and advantages - 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