With the Administration tool was not ported from Tomcat 5.x to Tomcat 6.x, how do people manage Tomcat configuration?
Are there other 3rd party Admin applications available? Or is all configuration done through editing xml files.
Thanks
I prefer editing xml files but you can use:
Lambda Probe for some of the information,
a JMX client (e.g. JConsole) to play with the various MBeans Tomcat has.
For the record, this message from one of the tomcat developers describes the problems with the admin webapp very well:
http://www.nabble.com/Tomcat-Administrator-tf3415576.html#a9519933
Please checkout MuleSoft Tcat Server for configuration management across multiple Tomcat servers.
Disclosure: I work for MuleSoft, and would be happy to answer any questions on Tcat Server.
Related
The app is not accessible sometimes but only for some users. In the same LAN also, some users can access but some cannot.
The web app was designed with following technologies
Node
Angular
Express
MySql.
It's hosted in AWS EC2, MySql is also installed on the same EC2 instance.
I have no idea how this is happening. The server was running all the time.
This eror is not related your application - it's just that domain can not be resolved. You should check your DNS setting on server and on clients. See also instruction here, for example.
I'm working on an architecture to deploy my webapp. I would like to use Google Managed Instance Groups because I have some strict requirements. I was wondering:
which is the best Web container to be deployed in a distributed environment?
I'm familiar with Tomcat, it's Tomcat OK to be deployed in an instance group?
my Webapp running on tomcat will generate logs that will be stored in the current machine hosting tomcat. How should I handle distributed application logs.
I don't want to lose information and I would like to have a single view of all log of my webapp even if distributed, Is it that possible?
Thanks
I have used tomcat in GCP for over a year and it has worked without problems with the load balancer. To solve the issue of the logs you must use an agent to save the logs in stackdriver https://cloud.google.com/logging/docs/view/service/agent-logs
There are many ways of deploying Mule ESB into a production environment. According to the documentation, it appears that running Mule as a standalone service is the recommended way of doing so.
Are there any reasons for NOT running Mule standalone in production? I'm sure its stable, but how does it compare to Tomcat as far as performance, reliability, and resource utilization go?
Should I still consider running it within Tomcat for any reason?
Using Tomcat, or any other web container, allows you to use the web tier of that container for HTTP inbound endpoint (via the Servlet transport) instead of either Mule's HTTP or Jetty transports.
Other differences are found in class loading, handling of hot redeployment and logging.
Now the main reason why people do not use Mule standalone is corporate policy, ie "thou shalt deploy on _". When production teams have gained experience babysitting a particular Java app/web server, they want you to deploy your Mule project in that context so they can administer/monitor it in a well-known and consistent manner.
But if you're happy with the inbound HTTP layer you get in Mule standalone and you are allowed to deploy it in production, then go for it. It's production ready.
Mule actually recommends deploying standalone. Inside a container like e.g. tomcat it has to share the threadpool, heap etc... This can obviously prevent it from performing at it's best.
The main reason you'd want to inside a container like tomcat is to get automatic deployment. I.e. you can just update your Mule application .war and the container will restart mule with the new application. This helps in testing.
Also some transports are specific to running inside a container, like the servlet transport. OTOH when designing solution so Mule transports between your container and your servlets your'e doing it wrong.
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
I am using Intellij IDEA to develop my applications and I use glassfish for my applications.
When I want to run/debug my application I can configure it from Glassfish Server -> Local and define arguments at there. However there is another section instead of Glassfish Server, there is a Remote section for configuration. I can easily configure and debug my application just defining host and port variables.
So my question is why to need for Glassfish Server Local configuration(except for when defining extra parameters) and what is difference between them(I mean performance or etc.)?
There are a number of development work-flow optimizations and automation that can be performed by an IDE when it is working with a local server. I don't have a strong background in IDEA, so I am not sure which of the following they may have implemented:
using in-place|exploded|directory deployment can eliminate jar/war/ear creation in the IDE and deconstruction in the server. This can be a significant time saver.
linked to 1 is smarter redeployment. In some cases, a file change (like changing a jsp or an html file) does not need to trigger redeployment.
JDBC driver integration allows users to configure their IDE to access a DB and then propagates that configuration (which usually includes driver jars, etc.) into the server's classpath as part of deployment of an app.
access to server log files during deployment and execution.
The ability to start and stop the server... even today, you do need to restart GlassFish sometimes.
view the generated Java sources of a JSP.
Most of these features are not available with a remote server and that has a negative effect on iterative development since the break between edit and validate can be fairly long.
This answer is based on my familiarity with the work that we have done for the NetBeans/GlassFish integration. The guys at IntelliJ are smart, so I would not be surprised if they have other features that are available when you are working with a local server.
Local starts Glassfish for you and performs the deployment. With Remote you start Glassfish manually. Remote can be used to debug apps running on another machines, Local is useful for development and testing.