Quick bit of advice if i may. I'm a startup company and developing a new mobile app that i intend to query and update data from a cloud MYSQL database, using a restful webservice and JSON. I am pretty new to this, but ok on the theory.
I originally thought i could use Dropbox to host the database and somehow install a Tomcat server also, to act as the http server, but i cant find anything online that says this is achievable. I've now found a temporary site heliohost.org, which offers free hosting, so i'm looking into that.
Does anyone have advice on a [low cost] longer term production cloud service for MYSQL database? And am i right that a good approach is to create a restful webservice in Eclipse and then somehow deploy that to the Tomcat server in the cloud, so that my app can then issue calls to it via the CN1 available methods.
There is quite a lot out there and much of it is self-promoting their own sites so was after some independent advice please.
Many thanks in advance.
You can't host and access an SQL server over the network from a device as access is remarkably unreliable and insecure. You will need some form of hosting. I used Linode for our online course since they are very affordable (5USD per month) but I've used AWS, Digital Ocean and others. They are all good.
You are correct that you will need to create a webservice, I used tomcat in the past but for the latest course I chose SpingBoot which is easier and more modern.
Using a mobile backend to store and retrieve data is a vast topic to discuss where different tools and services can be leveraged based on your application use cases.
However directly accessing MySQL server from your mobile client wouldn't be a recommended approach both in term of security as well as performance at scale.
Few options you can consider.
Developing the mobile backend with Amazon Mobile Hub where you can find different architectures and services. For example.
Using AWS DynamoDB as a Mobile Backend tightly controlling access permissions with AWS Cognito and DynamoDB Fine Grained Access Control.
Using Cognito Sync as a storage medium to Synchronize data from Mobile App to AWS and then using triggers to share and push data & etc.
Developing a REST API for the mobile backend using AWS Services such as API Gateway, Lambda & DynamoDB(Or Relational Databases like MySQL, Postgres SQL & etc. with RDS)
Related
I'm currently doing a iOS application for school to connect to school mysql database.
It should be able to connect to it through the tools on xamarin studio.
I tried a lot of different coding to connect the database, but was unable to do so.
Is there any tutorial or example code to let me learn on how to do it ?
Thanks for any help!
Do not connect directly to a database from a mobile app. Doing this requires exposing your database server directly to the web, which is a horrible security risk. The better approach is to use a web services layer to broker the interaction between your client and your server.
http://docs.xamarin.com/guides/cross-platform/application_fundamentals/web_services/
While people are right and the best way to connect to a database is to use a web service there are some times you want to connect directly and ways to make the connection more secure (ip restrictions on the mysql server).
Here is a plugin with code examples on how to do it:
https://components.xamarin.com/view/mysql-plugin
Be sure to pay attention to the first forum question on errors and how to resolve. You need to include a reference to system.data, I18N, I18N.West in your project and also make a call to the constructor for I18N somewhere in your code.
new I18N.West.CP1250();
I have a publicly accessed database on RDS that works like a charm from Netbeans. I would like to deploy my Java application on AWS. What is the simplest way to do this? I will only use the application for some very basic tasks, getting used to cloud computing working on a small scale. Is EC2 my best bet and is it possible to upload apps as easily as with the Google App Engine plugin. Can I use the same jdbc driver as I use locally, and can I use JPA against the database? I would rather not use Eclipse for now as I am in a bit of a hurry and need to get this working as soon as possible.
This is a lot of questions for one question, but I'll see if I can help you out.
1. Simplest Way to deploy to AWS
If this application is as simple as you say it is, the most cost effective solution while you're getting used to AWS will be to deploy to a micro instance and take advantage of the free tier. From Amazon:
AWS Free Tier includes 750 hours of Linux and Windows Micro Instances each month for one year. To stay within the Free Tier, use only EC2 Micro instances.
The simplest way to deploy directly from Netbeans is to use the integrated Elastic Beanstalk support. This saves you from having to configure things yourself.
Another option is to launch a Ubuntu AMI and install Tomcat. Create a WAR file from your application and place it where Tomcat can find it. I suggest using the first method.
2. Is EC2 my best bet?
This is a little open ended. For a nice learning experience as you get accustomed to AWS, the free tier for EC2 is a nice platform to learn with. If your application needs to eventually scale, using EBS is a pretty simple way to manage an application. My answer is an opinion because "best bet" depends solely on the requirements of your application, but I say yes.
3. Is it possible to upload apps as easily as with the Google App Engine plugin?
For simple applications I think so. I think it's even easier if you switch to Eclipse and use the toolkit for AWS. Whether Google App Engine or AWS is easier for you will once again depend on personal preference, the application, and your requirements.
4. Can I use the same JDBC driver as I use locally?
If you're using MySQL Connector/J then yes. Read this to understand how it works with RDS.
5. Can I use JPA against the database?
Yes. You'll change the endpoint from localhost to the endpoint of your RDS instance.
6. I would rather not use Eclipse for now...
Another personal preference, but the AWS toolkit for Eclipse is very easy to use and can speed the process up a bit.
I have a dedicated server with WHM and cPanel installed on it.
recently I decided to move to cloud services since the dedicated server is costly and I'm not actually using any of its power, freedom and functionality.
I was considering moving to AWS or Heroku since they are less expensive, scalable and I don't need to manage the server myself.
I only have few websites on my server and I'm managing them via cPanel and WHM
I'm only using mySql database
I have also have some cron jobs setup
I use ftp to upload and maintain my websites (no git)
I was wondering if anyone could explain how I can transfer my files, databases, and domains to either AWS or Heroku.
I prefer the one that is easier and faster to migrate to.
Thanks.
If server/network management is not your strength, I would strongly advise against using AWS (even as big a proponent of AWS as I am). You absolutely must manage the servers yourselves, at least the configuration aspect (not the hardware aspect). In fact, you will find that you have to do things like set up security policies, identity access management, IP addresses, etc. that are not always that intuitive to one who is not used to working in a bit of an operations capacity.
You will also likely have to consider application architecture changes to work best with AWS services. Additionally, you will have to become accustomed to the AWS way of doings things (that starting and stopping server instances may make all your data go away and such).
If you are looking for a hands-off server approach, you might be better served looking at something like Slicehost/Rackspace.
I can't talk much to Heroku as I have only minimal experience prototyping on it. You can think of it more as an application platform. For simple applications that don't have unique traffic demands or architectural requirements, it seems a good solution for getting an application up and running with minimal server-related configuration. Again a legacy app will probably require some re-architecting to do things the Heroku way.
AWS are good but the support at Rackspace is far better and much more suited for someone like you. Rackspaces support is 24/7 and even on their online chat system you don't need to wait more than a few mins to speak to someone who actually knows what they are doing.
I am developing a GWT project that is hosted in GAE, and I would like to use an external MySQL database for persistence, instead of Datastore. Is it possible to do this? Is it compatible with RequestFactory?
Thanks
GAE offers the ability to use Google Cloud SQL instead of the High Replication Datastore.
RequestFactory does not make assumptions about the datastore you are using so there should not be any problem using it with Google Cloud SQL. You can also use both at the same time.
You cannot connect to a database server hosted anywhere else, unless you would create an interface that works on the HTTP level... which sounds like a really bad idea for several reasons.
trying to migrate my existing asp.net website which is using mysql to Windows Azure.
I have a few questions
How do i host my existing asp.net application in Windows Azure?
Any good links to recommend for a beginner?
Is it a must to create a windows azure application in order to host my existing website in Azure?
Is it true that mysql will cost $0.12 an hour per web role?
Hosting asp.net applications in Windows Azure is a broad subject. I suggest starting with a tutorial such as this one for initial intro: http://www.asp.net/mvc/tutorials/deployment-to-windows-azure/walkthrough-hosting-an-aspnet-mvc-application-on-windows-azure
Simplest would be to add your existing ASP.NET project as a Web Role to a new Azure project. (Tutorial link above explains how this can be done)
MySQL is not supported in Windows Azure at this time. I suggest either switching to SQL Azure (prices here) or you will need to host MySQL instance elsewhere and connect to it from Azure servers (not recommended due to latency). Installing MySQL on a Windows Azure instances is totally not recommended, since those instances are stateless and Azure can choose to re-image them at any time. (Unless you have a read-only MySQL database and have a way to auto-install it via a setup script)
HTH
One thing to keep in mind, ASP.NET Sites are not supported, it has to be an application. You can see this link for how to convert to an application if needed:
http://msdn.microsoft.com/en-us/library/aa983476.aspx