The third project involves creating a message queue client that communicates with a basic pub/sub system via a RESTful API and POSIX threads and network sockets. A pub/sub system typically consists of one server and several clients:
As was previously mentioned, a typical pub/sub system consists of a server that manages a set of topics that act as message endpoints and queues that store the messages corresponding to specific clients or groups. The following actions are carried out by clients connected to this server through the pub/sub system:
In the aforementioned example, Client B sends a HTTP PUT command to publish the message “With great power, comes great responsibility” to the “Marvel” topic. The message will be forwarded to the “Spidey” queue because the pub/sub server will internally detect that “Spidey” is subscribed to the “Marvel” topic.
By midnight on Monday, October 8, 2018, you must, in teams of one, two, or three, develop a library that makes use of POSIX threads and concurrent data structures to implement a client for the described pub/sub system. Additionally, by Friday, October 12, 2018, you must construct and demonstrate a distributed and parallel application of your choice using this library.
As was discussed in class, many platforms in the real world, including Google Cloud and Amazon Web Services, use pub/sub systems. These systems enable programmers to create concurrent distributed and parallel applications using both the message passing and event-driven paradigms.
You can see that the server uses the Tornado framework, which offers event-based concurrency for overlapping compute and I/O, by looking at the source code. Accordingly, the server can serve as many clients as the system’s resources allow and will keep processing requests until a client disconnects (either explicitly or implicitly).
As a result, the library needs to have at least two POSIX threads. Concurrent data structures should be used to coordinate data access between these threads. With this architecture, the client library will be able to run asynchronously and the user will be free to set up their own event loop or simply combine compute and I/O in any way they see fit.
For the concurrent queue you’ll be implementing, there is a unit test called test_queue_unit. It also comes with a functional test (i. e. test_queue_functional) that tests the queue with multiple threads. Finally, we include a basic echo client test (ie. Using your message queue library, test_echo_client) will carry out fundamental operations.
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Why is a project queue important?
Because it can help project managers work more efficiently while completing a project, a project queue is crucial. By setting up a project queue, you can make sure that each team member gets tasks and a deadline. Each team member can see how their work contributes to the project and when they need to finish their tasks so others can work on theirs by having a project queue made available to them.
What is a project queue?
A team must complete a number of tasks that are in a project queue. These queues are managed by project managers to help keep projects on track, within budget, and on schedule. For instance, a crew may have a variety of tasks to complete on a construction project, such as gathering materials, constructing the frame, and setting up the plumbing and electrical systems. These tasks are organized by the project manager into a logical series of steps.
Project managers typically only add tasks to queues once they are ready for team members to complete them. The project manager can add more tasks as team members finish them. This keeps the workload from piling up and the project queue small.
How to manage a project queue
You can manage your project queue more effectively by following these steps:
1. Determine how the project aligns with company goals
You can break down your project into smaller steps by understanding how the project contributes to your company’s goals. Review the desired result for your project, then evaluate it against the objectives of the company. Some common business goals include:
2. Analyze the risks and rewards of the project
Once you begin your project, analyzing the risks can help you avoid or mitigate them. Some of the most typical risks to take into account include the following:
Knowing the potential benefits can help you set more specific objectives. Kinds of rewards can include:
3. Decide on short- and long-term projects
The effectiveness of your project queues can be improved by taking a look at project deadlines and determining whether they are short-term or long-term. Long-term deadlines typically go beyond six months, while short-term deadlines are usually six months or less. By separating deadlines in this manner, you can focus on tasks that the team must finish first. You can use it to determine which tasks you need to complete before moving on to others.
4. Make your project queue visual
Making your project queue visual can make it easier for you and your team to understand what needs to be done when. It can also assist you in choosing the tasks that should be prioritized for each team member. Using online spreadsheets or project management software, you can make a visual queue. Everyone can then easily access the workflow and update the queue whenever a task is completed. Another option is to write your queue on a whiteboard or use sticky notes to organize your tasks on a wall. Try these suggestions when making a visual project queue to maintain a fluid workflow:
These recommendations can help the project backlog begin and remain low, which is ideal.
5. Look for potential backlogs
Finding solutions before you run into problems can help you identify areas where your queue might slow down. Check for any obstacles that might result in a longer line when visualizing your queue. For instance, if one team member has a lot of work to do, you might try redistributing some of it to the other team members. You can lessen the likelihood of a backlog by maintaining even workloads and creating attainable deadlines.
6. Continue to update your project queue
As your team completes work, it’s critical to regularly add new tasks to the queue. According to priority, add tasks to keep the project moving along. Make sure that each team member has enough work to complete within the allotted time.
Tips for managing a project queue
Here are several tips for managing a project queue:
What is project queue?
A team must complete a number of tasks that are in a project queue. These queues are managed by project managers to help keep projects on track, within budget, and on schedule.