Load Balancing

Load balancing is a technique used to distribute a load across multiple devices, servers for example. Often it is configured to distribute the

Pick ONE OR MORE options

Starving occurs when some resource, e.g. a server, does not process any requests, but others do.

Any reasonable system has only one load balancer.

A health check is a procedure that checks if the load is indeed balanced across resources.

If a load balancer is not a bottleneck, then using it increases the throughput of the system.

Sometimes it makes sense to have a load balancer that distributes the load in an uneven manner.
Based on the principles of load balancing, the following options are correct:
Starving occurs when some resource, e.g. a server, does not process any requests, but others do.
Explanation: In load balancing, starvation refers to a scenario where certain resources (like servers) receive little to no traffic while others are overloaded. This imbalance can lead to inefficient utilization of resources and potential system performance issues.
If a load balancer is not a bottleneck, then using it increases the throughput of the system.
Explanation: A load balancer that operates efficiently without becoming a bottleneck can distribute incoming traffic evenly across multiple servers. This distribution allows the system to handle more requests concurrently, thereby increasing overall throughput.
Sometimes it makes sense to have a load balancer that distributes the load in an uneven manner.
Explanation: There are scenarios where uneven distribution is beneficial. For instance, if certain servers have higher processing capabilities or specialized functions, directing more traffic to them can optimize performance and resource utilization.
Incorrect Options:
Any reasonable system has only one load balancer.
Explanation: Relying on a single load balancer can create a single point of failure. To enhance reliability and availability, most robust systems implement multiple load balancers in configurations such as active-passive or active-active setups.
A health check is a procedure that checks if the load is indeed balanced across resources.
Explanation: Health checks primarily assess the status and responsiveness of individual servers or resources to ensure they can handle requests. They do not directly verify if the load is balanced. Instead, they help the load balancer decide which resources are healthy and available for handling traffic.


techtarget.com
What is Load Balancing? How Load Balancing Works | TechTarget
Learn about load balancing and its various algorithms. Explore the benefits of load balancing and the pros and cons of hardware and software load balancers.


amazon.com
What is Load Balancing? - Load Balancing Algorithm Explained - AWS
Find out what is Load Balancing and how to use Amazon Web Services for Load Balancing


wikipedia.org
Load balancing (computing) - Wikipedia
In computing, load balancing is the process of distributing a set of tasks over a set of resources (computing units), with the aim of making their overall processing more efficient. Load balancing can optimize response time and avoid unevenly overloading some compute nodes while other compute ...


ibm.com
What Is Load Balancing? | IBM
Load balancing is the process of distributing network traffic efficiently among multiple servers to optimize application availability.


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36. Configuration with Jenkins Agent and Tools

On the Linux-based jenkons server, a dynamic node named Jenkins DyagentPWSH from AWS EC2 was added. However, an error occurred while running pipelines dus to absence of powershell  and Git in the logs.

How can this problem be resolved?

Pick ONE option

Update the user data to install Git and PowerShell and add it in tools configuration.

Update the init script and add it in the tools configuration.

SSH into the server, install Git and PowerShell, and add it to the tools configuration.

Make a link to install Git and PowerShell from Jenkins master and dynamically add it to agent node.