[{"data":1,"prerenderedAt":399},["ShallowReactive",2],{"content-svc-lambda-guides-effectively-running-java-on-serverless-compute":3},{"markdown":4,"frontMatterAttributes":5,"bodyRaw":10,"menu":11,"menuType":390,"isCollapseableMenu":14,"nextDocItem":48,"previousDocItem":35,"contributorPaths":391,"contentName":398,"slug":47,"readingTime":28},"\u003Cp>\u003Cimg src=\"\u002Fassets\u002Fexternal\u002Fservice\u002Flambda\u002Fguides\u002Feffectively-running-java-on-serverless\u002Fassets\u002Fcompute.jpg\" alt=\"Compute\">\u003C\u002Fp>\n\u003Cp>While Java was evolving at its own pace, compute has also evolved dramatically.\nIn previous years, it took a long time to actually focus on the business logic that addresses the customer's \nrequirements.\nFor example, initially we had to procure bare metal servers, provision them, and ultimately\nstart prototyping and building applications.\nThe level of abstraction was very low; however, the focus on business logic\ncame way later in the magnitude of months, if not in years.\nThat changed when we moved to Virtual Machines (VM).\nVMs provided some level of abstraction while running in production.\nBut the development environment was still not in parity with VMs.\nThen came Containers which provided a great level of abstraction \nwhere developers can focus on building business logic sooner than with other compute abstractions.\u003C\u002Fp>\n\u003Cp>In 2016, AWS introduced Lambda functions as a Serverless option. There are still servers involved, but AWS owned the \nheavy lifting of maintaining those servers for you so that you focus on just writing business logic, thus the highest \nlevel of abstraction and developers focus on directly writing and deploying business logic as Lambda functions.\u003C\u002Fp>\n\u003Cp>Today AWS Lambda runs on \u003Ca href=\"https:\u002F\u002Ffirecracker-microvm.github.io\u002F\">Firecracker microVM\u003C\u002Fa> and provides:\u003C\u002Fp>\n\u003Cul>\n\u003Cli>Continuous scaling\u003C\u002Fli>\n\u003Cli>Built-in fault tolerance\u003C\u002Fli>\n\u003Cli>Pay per use\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cp>However, for Java, \nthere are challenges that AWS Lambda had to deal with because of the way Java was built from the ground up\nand the way AWS Lambda works.\nLet's understand those challenges.\u003C\u002Fp>\n",{"title":6,"order":7,"authors":8},"Evolution of Compute",4,[9],"Dhiraj Mahapatro","![Compute](\u002Fassets\u002Fexternal\u002Fservice\u002Flambda\u002Fguides\u002Feffectively-running-java-on-serverless\u002Fassets\u002Fcompute.jpg)\n\nWhile Java was evolving at its own pace, compute has also evolved dramatically.\nIn previous years, it took a long time to actually focus on the business logic that addresses the customer's \nrequirements.\nFor example, initially we had to procure bare metal servers, provision them, and ultimately\nstart prototyping and building applications.\nThe level of abstraction was very low; however, the focus on business logic\ncame way later in the magnitude of months, if not in years.\nThat changed when we moved to Virtual Machines (VM).\nVMs provided some level of abstraction while running in production.\nBut the development environment was still not in parity with VMs.\nThen came Containers which provided a great level of abstraction \nwhere developers can focus on building business logic sooner than with other compute abstractions.\n\nIn 2016, AWS introduced Lambda functions as a Serverless option. There are still servers involved, but AWS owned the \nheavy lifting of maintaining those servers for you so that you focus on just writing business logic, thus the highest \nlevel of abstraction and developers focus on directly writing and deploying business logic as Lambda functions.\n\nToday AWS Lambda runs on [Firecracker microVM](https:\u002F\u002Ffirecracker-microvm.github.io\u002F) and provides:\n\n- Continuous scaling\n- Built-in fault tolerance\n- Pay per use\n\nHowever, for Java, \nthere are challenges that AWS Lambda had to deal with because of the way Java was built from the ground up\nand the way AWS Lambda works.\nLet's understand those challenges.\n",[12,32,56,185,238,295,311,350,372],{"title":13,"collapsible":14,"isCollapsed":15,"content":16},"Introduction",false,true,[17],{"title":18,"order":19,"authors":20,"callout":21,"prerequisite":25,"time":28,"path":29,"id":30,"link":31},"Getting Started",1,[9],{"title":22,"description":23,"link":24},"Watch this video","This Devoxx 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