Although the term ‘Serverless Computing’ implicates the existence of a computing architect with no server, it actually defines a cloud based execution model. The server is hosted by cloud service providers and users are not required to buy it or set it up onsite. The cloud service provider manages the server and machine resources are allocated to users.
As most businesses are making a shift towards serverless computing instead of traditional approach, it is necessary to understand the pros & cons of this approach.
Pros Of Serverless Computing:
- Cost-effective: Serverless computing is a cost-effective approach for businesses. The users are required to pay as per the amount of resources consumed by their application instead of pre-purchased units of usage capacity.
- Easy To Scale Up: In case of serverless computing, application developers are not required to implement a code for scaling up. Also, it rules out the need and cost for upgrading existing servers or adding new server units. When considering to scale up, businesses can request additional resources from the service provider and pay according to their consumption. Also, cloud systems are more elastic as they are capable of scaling up and down inherently according to the demand.
- Low Human Resources Cost: Serverless computing eliminates the need for onsite servers. Thus, businesses are not required to hire staff for managing and operating the hardware. This helps them save cost that was traditionally incurred on human resources.
- Enhanced User Experience: By switching to serverless computing, the businesses and application developers can save time and resources required for server management. These resources can be used on other tasks such as improving productivity and user experience by developing as well as improving customer-friendly features.
- Decreased Latency: Depending upon the services offered by the provider, businesses can choose to run the application functions on a server node close to the end user. Thus, it reduces latency as the requests initiated by a user are not required to travel to origin server and can be reverted from the nearest available node.
Cons Of Serverless Computing:
- Testing Becomes Challenging: A serverless environment cannot be easily replicated to check how an application code will respond after being deployed. Also, developers do not have visibility into backend processes and the application is split into separate functions for running on the cloud. This makes it challenging to debug any arising issues.
- Vendor Lock-In: When using a cloud based server, the developers are restricted to adapt the rules set by the third party vendor such as using a specific coding language.
- Multitenancy: In order to avail maximum benefit, cloud service provider may run applications or software for numerous different users on a single server. Although workloads of different customers are isolated, there may still be bugs in initial offerings. This gives rise to data security risks.
For more information on serverless computing, contact Centex Technologies at (972) 375 - 9654.