Assignment Sample on Cloud Application Scalability and Availability
Dynamic scaling of web application
Scalability is the potential of a software and network to increase and manage excessive demand and it is considered as one of the most crucial features of cloud computing. Cloud computing has become one of the predominant models of computing and one of the greatest innovations that has positive consequences for the complete market of Information technology (Alam, 2021). It needs to be mentioned that with the help of scalability one may be able to scale the storage capacity of data or reduce it down to meet the requirements of a given business. Dynamic scaling in particular, is an architectural framework that is based upon a predefined condition of scaling, which ultimately impacts the dynamic allocation of resources of Information Technology (IT) from the pools of resources.
There are various types of dynamic scaling that are commonly used nowadays, such as Dynamic Horizontal Scaling, Dynamic Vertical Scaling and Dynamic relocation and with the help of these methods’ website scaling may be achieved efficiently. Dynamic Horizontal Scaling is used in scaling out resources of IT and for the purpose of handling fluctuating work pressure and this task is conducted by an automatic scaling listener. Dynamic Vertical Scaling is used to scale up and down instances of IT resources in case there is a demand to adjust the capacity of processing of an IT resource. The method of auto scaling is known for dynamically managing an application’s resources in accordance with the present and future prediction of load in order to conserve the desirable performance at a low cost (Iqbal et al., 2018). Lastly, it may be mentioned that in Dynamic Relocation the IT resource is further located to a host that has increased capacity.
It may be stated that scaling is one of the most significant and critical factor for the success of an organisations who are involved in implementing business with the help of web and in the transfer of information which may vary from time to time. The cloud computing aids in providing a powerful model of computing which helps all the users to access the required resources on their demand. The dynamic scalability architecture may be used for a number of IT resources which includes cloud storage devices and virtual servers. Cloud usage monitor, pay per use monitor and hypervisor are few of the other mechanisms which are used in cloud architecture.
Dynamically scaling applications
Every web page and application are backed up by several host servers, however, sometimes the webpages generate too much traffic and that causes the web applications to become difficult to be accessed by visitors. Scalability has been identified as one of the main reasons for the success of many organizations that are presently involved in business practices that are based on the web (Ieeexplore.ieee.org. 2021). In a scenario similar to this there are additional servers that get deployed for the purpose of managing the traffic on the webpage so that the application may be accessed in an efficient way. Scalability is known as one of the most significant advantages that cloud computing has brought and helps it to be different from outsourcing at an advanced level. The main feature of dynamic scaling or auto scaling is that a specific characteristic of an application gets monitored by a service and it uses that information to calculate the number of servers that an application needs to run.
The application then automatically fixes the number of servers that it is currently running on in order to adjust with the optimum number by basically adding or removing servers from the server dynamically. The application does this for the purpose of balancing the requirements and needs of that application against the cost of operating the application. The servers that are created recently automatically configured to run an application and auto scaling also may perform required actions similar to removing and adding servers from a given application’s load balancer if required. Every major corporation in the world uses this process so that their websites and webpages do not slow down under any circumstances. Amazon web services is one such example that uses dynamic scaling for the purpose of keeping their official website always running and to make sure that consumers do not face any trouble while accessing it (Amazon Web Services, Inc. 2021).
Dynamic scaling can be termed as one of the feature of auto scaling which aids in scaling the capacity of a group automatically while responding to the changing demand. One of the most significant advantages discovered by the cloud paradigm is mentioned to be scalability. Dynamic scaling methodology aids in improving the performance of the big data system in a significant manner which improves the overall performance of the system. Furthermore, dynamic scaling also provides a solution for the failure of performance of the systems which process huge amount of data. The most commonly used dynamic scaling are dynamic vertical scaling, dynamic relocation and dynamic horizontal scaling.
References
Alam, T., 2021. Cloud Computing and its role in the Information Technology. IAIC Transactions on Sustainable Digital Innovation (ITSDI), 1, pp.108-115.
Amazon Web Services, Inc. 2021. Cloud Services – Amazon Web Services (AWS). [online] Available at: <https://aws.amazon.com/> [Accessed 30 October 2021].
Ieeexplore.ieee.org. 2021. Dynamic Scaling of Web Applications in a Virtualized Cloud Computing Environment. [online] Available at: <https://ieeexplore.ieee.org/abstract/document/5342101> [Accessed 30 October 2021].
