Load Balancer: -
Load balancing works in distributing incoming traffic to different backend servers. Dynamic-modern websites serves with hundred or even million concurrent requests from users. To easily manage such requests, load balancers are used. Load balancer operates as traffic police that sits in front of backend servers and show direction to incoming traffic. If any server got interrupted, load balancer redirects traffic other servers. When any new server is added, load balancer starts itself by sending request.
As per to OSI (Open System Interconnection) model, load balancers are categorized into two layers. OSI layer 4 - transport layer and layer 7 - application layer. On layer 4 load balancer manages traffic over the network without decrypting actual content of data packet. On layer 7 load balancer decrypts the message and makes decision based on content of message.
Hardware Load Balancer: -
Physical load balancers are particularly defined as high-performance appliances. They have capability of proceeding securely of multiple gigabits of web traffic from different applications.
Some load balancers have virtualization capabilities with more solid instance on same hardware.
Software Load Balancer: -
Software load balancer can word independently. They don’t require any individual hardware and works with superior flexibility.
Software load balancer can run on universal hardware as another process with some configuration depending on requirements.
Reduces expense to setup another hardware.
Many end-users are unaware, processes responsible for show content on the internet. Websites that become popular over time have to deal with high amount of traffic. If your website is receiving high web traffic than you should consider opting out for load balancers.
Websites receiving high amount of traffic, if not managed than it can put negative impact towards website visitors. With over time, it can put your website to slow down web traffic.
Websites with high traffic needs constant upgrades towards their hardware as well as software requirements. Simple upgrades aren’t enough, that’s why organizations opt out load balancers.
Load Balancing Algorithms: -
Different Algorithms of load balancing have numerous benefits. Choosing of load balancing algorithms depends upon your requirements.
IP Hash – IP address of the client resolves which server receives the request.
Round Robin – Concurrent requests are assigned to different servers in sequential manner.
Least Connections – A new request is sent to server, with few current connections to clients. Relative computing capacities is factored to find out which one has least amount of connections.
Advantages of Load Balancer: -
Easy to implement and configure for a professional working as network administrators.
Network administrators don’t need to implement session-failover. As users are redirected to other servers if interruption occurs.
Load balancers are responsible to detect offline servers to provide faster navigation to other servers.
Dis-advantages of Load Balancer: -
If network administrators are not trained, then they will fail to implement load balancer to concurrent sessions.
Load balancer causes high level of issues, sometimes it makes difficult to diagnose problems.
Routers should be load balanced itself otherwise they become point of failure.
So why Load balancing is required?
Load balancers helps in maintaining high stability among different servers. They are typically used by websites receiving high web traffic. Load balancers manage traffic more efficiently for each user. As explained above load balancer offers have many capabilities to securely manage, monitor web traffic for best user experience. Connect with HTS hosting to get best affordable plans related Windows shared hosting, Linux dedicated hosting, Best Windows Hosting Company and much more.
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