Very Beginner question.
I'm trying to complete this course on Application Integration in Oracle: https://mylearn.oracle.com/learning-path/become-an-application-integration-professional/98851
I'm stuck on Rapid Development of SOA Applications using SOA Cloud Service. I've picked up that SOA offers the ability to move existing, on-premises integrations and composite applications to the cloud and that's about all I know of it. The course includes a Lab exercise that I hoped would help me understand what's going on, but the Lab exercise starts out with telling me to open SOA in the Oracle Cloud dashboard. I've completed all the previous Labs in Oracle Cloud Infrastructure and I can't find anything called "SOA" there. So where exactly do I start if I want to complete the SOA part of this course?
Related
I am evaluating wep api gateway for my new projects. I used azure api gateway in the past. Reading about nginx as it is new and adopted by many. Can someone help me point out with some facts, pros, cons? Bug matrix will be a best help for me
Azure API Management is a mature and widely-used product, with many customers being very respected enterprises. Take a look at some public case studies.
It offers a very wide range of features, which are typical of an API management platform, and it is still being very actively developed. However, one of its biggest strengths lies in integration with Microsoft Azure services and features - multiregional deployments, virtual networks, monitoring and alerting solutions, native support for Service Fabric, Azure Function Apps and Azure Logic Apps, Azure Active Directory and others.
If you are considering hosting your new projects with Microsoft Azure, Azure API Management is a no-brainier.
The product is also one of the main reasons why Gartner named Microsoft a leader in the enterprise integration space.
Disclaimer: Although all of the above is best to my knowledge, I am affiliated with Azure API Management.
Although I have just started looking into this myself, here's what I can already conclude.
Looking at www.nginx.com/blog/deploying-nginx-plus-as-an-api-gateway-part-1/, Nginx requires a lot of manual configuration washed over many text files. That doesn't look flexible or effective, but I may have gotten a wrong impression.
Judging by how you're supposed to define your API keys using the map directive, Nginx API Gateway also looks like a new idea stretched on top of the existing product, while Azure API was designed for that exact purpose from the ground up.
Azure APIs, when published, come with auto-generated documentation and an interactive console that are in sync with all your updates.
With Azure API, you're putting all your eggs into one basket and completely depending on it's pricing and availability. At any moment Microsoft can increase their prices, or discontinue the product, and you cannot migrate elsewhere, at least not easily/quickly. At the same time, you can do your Nginx work once and run it on pretty much any server, starting with a low-end VPS or a Raspberry PI, if you'd like. It's pretty much yours.
Can LUIS.ai be run on the edge (on-premises)? We have issues with consistent internet connectivity within our specific use-case and can't provide high QOS without an on-premises model.
Unfortunately Luis relies on several APIs and a published web app in Azure, Internet connectivity could be an issue in implementing it. A suggestion i'd provide would be to create a bot ran locally, then use the programmatic API:
LUIS provides a programmatic API that does everything that the UI at https://www.luis.ai does. This can save time when you might have a lot of preexisting data and it'd be faster to create a LUIS app programmatically than by entering information by hand.
More Documentation can be found here
I am trying to a good comparison between AppDynamics and Application Insights in regard to Azure App Service.
I tried to google around but couldn't find any good comparison, if someone can point me or summarize here.
Information I got from another website.
Application Insights (AI) is a very simplistic APM tool today. It does do transaction tracing, it has very limited code and runtime diagnostics, and it doesn’t go very deep into analyzing the browser performance. Application Insights is much more like Google Analytics than like a typical APM tool.
AI does not support mobile apps, AppDynamics does Android and iOS
AI only supports Java, .NET, and node.js while AppDynamics supports many
additional languages and technologies.
AI requires code changes to do additional metric capture from the
code. AppDynamics has do this on the fly without code change on most
languages.
AI doesn’t so transaction distributed tracing, it has a simple data
collection model similar to what New Relic does. This makes
troubleshooting much harder in complex apps. If your app is simple
it’s not required.
AI lacks transaction scoring and baselining, you must set manual
thresholds. AppDynamics does this for every metric and every business
transaction.
AI doesn’t monitor databases or data stores. AppDynamics does both.
AI is SaaS only, while AppDynamics can be deployed on premises or
SaaS.
I want to know the difference between multi-tenancy and single tenancy.
Is tomcat supporting mutli-tenancy .Can you explain both with an example.
I am asking this question in context to http-servers.
Definition
From Wiki definition
In a multitenancy environment, multiple customers share the same application, running on the same operating system, on the same hardware, with the same data-storage mechanism. The distinction between the customers is achieved during application design, thus customers do not share or see each other's data.
So you can imagine that single tenancy is the other way around.
Example
Let's take JIRA as an example,
If you use OnDemand JIRA Service, it is multi-tenant, cloud-based service.
If you download JIRA Standalone and install it for you organisation. It is single tenancy case.
Designing multi-tenancy software
Designing multi-tenancy software is nothing to do with the hosting technology. It's actually about the way you architect the software.
Tomcat in your case, is absolutely suitable for multi-tenancy software.
I was reading this article Build Your First Cloud Application Using Visual Studio 2010 when It hit me:
Why would I switch from my normal
hosting (shared account, VPS, or
whatever) to host it on cloud
servers ?
Do I have to build my website with
ASP.NET Cloud Application to be able
to host it with any cloud providing
service company ?
How can I edit my ASP.NET Web
Application to be an ASP.NET Cloud
Application ?
Those are the questions I thought would help to gather a full picture about this new technology and it's own application template! but please feel free to add more points to consider in the answers.
Edit
so beside the difference in implementing a website between Azure and other cloud server
is there is a performance difference or any other differences between Azure and the other cloud servers ?
I didn't quite get what you meant by "bringing your app on site with your own staff may become more economical"
the Azure pricing are high and requires a whole new dedicated project to work with it restrictions. so both the hosting and the development are costy
I hope if there's any article about the good cloud hosting out there and perhaps any articles about the user experience (a legitimate review and maybe yours if you have any)
First, I believe "cloud" in the context of the blog article you read should really be more granularly defined as Azure. There are several cloud solution offerings and Azure is only one although it is gaining immense popularity in the MS community space. The Azure cloud is fairly unique compared to products like Amazon's cloud in that it requires applications that use it to comply to a specific set of APIs. To build an application for azure requires you to embrace certain architectural principles from the beginning and to build your app using its web and worker roles. To "fit in" to these roles, your app must be built within a special VS project that references the Azure SDK.
If you were to use another cloud solution like Amazon, it is more similar to firing up a VM or group of VMs that can host your app as is without the constraints of specific APIs. You simplu would fire up a windows server instance, install what you need on it like any other server you would use in a hosted or or leased data center environment.
I am not implying that the azure solution is flawed or overly restrictive. Rather, I think it supports some architectural constraints that will allow you to "fall into the pit of success." However, it may be difficult to effortlessly migrate many brown field apps to azure without making significant changes.
As far as why host a application in the cloud as opposed to a normal hosted environment. It really depends on your app, your business/budget constraints and your traffic level. For many small, hobby sites, you may be better off keeping your app on a traditional hosted environment. For larger scale apps, the cloud begins to make more sense. The cloud is really supporting a "pay per use" model. If you need to have the ability to scale out quickly without the funds or the ability to wait on a purchase of lots of additional hardware, the cloud is a good option. Cloud providers have deep pockets and plenty of server resources and bandwidth to send your way at a moments notice that you can rent instead of buy.
Also, because cloud providers are large and typically highly reputable, they can afford to hire expert staff and follow best practices that you may not be able to afford on your own. They can and will handle a lot of the day to day ops administration enabling you as a developer to not have to think of things like security and redundancy.
So as I see it, cloud solutions are ideal for apps that are beginning to see a fair amount of traffic, need guaranteed up time, and do not want to pay or bother themselves with their own admin staff, server purchasing and data center management. I think they are not practical for many small hobby sites and once you become really big, bringing your app on site with your own staff may become more economical.
That all said. it has become "cool" in the .net space for any site to run on azure. I'll admit that some of the architectural models are interesting and seem fun to work with. However, if you take a close look at the pricing model, you may find you are better off with your hosted plan.
Moving your .NET application to a cloud or hybrid infrastructure allows you to start evolving to a Microservices Architecture, with the ability to phase in Containers and a Serverless architecture.
You mentioned that Azure costs are high and maybe cumbersome in your situation.
Maybe consider other popular cloud providers like AWS. They have a ton of vendors and services all readily available to help make the adoption easy, in fact over 57% of Windows workloads currently run on AWS.
Here is an eBook we recently published about this exact topic.