Find iisreset time
Red Gate recently polled the ASP. NET web applications. The book is full of quick and easy tips to squeeze some added performance from your ASP. Being a bit of a performance nut myself, I jumped at the opportunity to share a few tips of my own.SEE VIDEO BY TOPIC: Problem: Asp Net Core 2 hangs. Restart on IIS
SEE VIDEO BY TOPIC: net start and net stop a serviceContent:
- Speeding up your application with the IIS Auto-Start feature
- IIS memory leak? Use IISRESET
- IIS Web Server
- How to perform an IIS Reset using Command Prompt.
- Using IISReset.exe to restart Internet Information Services (IIS) results in an error message
- Subscribe to RSS
- Where can I find my IIS log files?
- How to set task scheduler to reset IIS daily
- WordPress on IIS, error 500 after a few days of working fine
Speeding up your application with the IIS Auto-Start feature
I've been working quite a bit with Windows Services in the recent months, and well, it turns out that Windows Services are quite a bear to debug, deploy, update and maintain. On most projects when a service is built, people end up scrambling for the right 'process' to use for administration.
Web app deployment and maintenance on the other hand are common and well understood today, as we are constantly dealing with Web apps. There's plenty of infrastructure and tooling built into Web Tools like Visual Studio to facilitate the process.
By comparison Windows Services or anything self-hosted for that matter seems convoluted. In fact, in a recent blog post I mentioned that on a recent project I'd been using self-hosting for SignalR inside of a Windows service, because the application is in fact a 'service' that also needs to send out lots of messages via SignalR.
But the reality is that it could just as well be an IIS application with a service component that runs in the background. Either way you look at it, it's either a Windows Service with a built in Web Server, or an IIS application running a Service application, neither of which follows the standard Service or Web App template. Personally I much prefer Web applications. Running inside of IIS I get all the benefits of the IIS platform including service lifetime management crash and restart , controlled shutdowns, the whole security infrastructure including easy certificate support, hot-swapping of code and the the ability to publish directly to IIS from within Visual Studio with ease.
Because of these benefits we set out to move from the self hosted service into an ASP. NET Web app instead.
I've had moments in the past where I wanted to run a 'service like' application in ASP. NET because when you think about it, it's so much easier to control a Web application remotely. In fact nearly 10 years ago I built a background scheduling application that ran inside of ASP. NET and it worked great and it's still running doing its job today. NET launched so your 'service' stays alive even after an Application Pool reset. NET alive or fire it back up after a reload. I used a simple scheduler class that also includes some logic for 'self-reloading'.
Hacky for sure, but it worked reliably. This means that effectively your ASP. All the other features like Application Pool recycling and auto-shutdown after idle time still work, but IIS will then always immediately re-launch the application.
For IIS 7 and 7. Start with the Application Pool:. Here you need to set both the Start Automatically which is always set, and the StartMode which should be set to AlwaysRunning. Both have to be set - the Start Automatically flag is set true by default and controls the starting of the application pool itself while Always Running flag is required in order to launch the application. Without the latter flag set the site settings have no effect.
At this point ASP. NET apps should auto-load. This is all that's needed to pre-load the site if all you want is to get your site launched automatically. If you want a little more control over the load process you can add a few more settings to your web. This can be useful if startup is really slow, so rather than displaying blank screen while the user is fiddling their thumbs you can display a static HTML page instead:.
This allows you to specify a page to execute in a dry run. IIS basically fakes request and pushes it directly into the IIS pipeline without hitting the network. You specify a page and IIS will fake a request to that page in this case ping. This request is run immediately after Application Pool restart, and while this request is running and your app is warming up, IIS can display an alternate static page - Startup. So instead of showing users an empty loading page when clicking a link on your site you can optionally show some sort of static status page that says, "we'll be right back".
I'm not sure if that's such a brilliant idea since this can be pretty disruptive in some cases. Personally I think I prefer letting people wait, but at least get the response they were supposed to get back rather than a random page. But it's there if you need it. Note that the web. Ideally though you want to make sure that an ASP.
NET actually gets hit since it's possible for IIS fire unmanaged requests only for static pages depending how your pipeline is configured. NET also has to deal with AppDomain shutdowns which can occur for a variety of reasons:. These operations don't cause the worker process to restart, but they do cause ASP. NET to unload the current AppDomain and start up a new one. NET service' to stop processing in the background. NET url to the current site at the very end of the pipeline shutdown which in turn ensures that the site immediately starts back up.
The above UI corresponds to the following ApplicationHost. Unfortunately for me, with Mr. Murphy in his best form for me, the module registration did not occur and I had to manually add it. Most likely you won't need ever need to add this, but if things are not working it's worth to check if the module is actually registered.
Next you need to configure the ApplicationPool and the Web site. The following are the two relevant entries in ApplicationHost. And that's all you should need. You can still set the web. In the particular application I'm working on currently, we have a queue manager that runs as standalone service that polls a database queue and picks out jobs and processes them on several threads.
The service can spin up any number of threads and keep these threads alive in the background while IIS is running doing its own thing. These threads are newly created threads, so they sit completely outside of the IIS thread pool. In order for this service to work all it needs is a long running reference that keeps it alive for the life time of the application.
In this particular app there are two components that run in the background on their own threads: A scheduler that runs various scheduled tasks and handles things like picking up emails to send out outside of IIS's scope and the QueueManager. By keeping these objects around as static instances that are set only once on startup, they survive the lifetime of the application. The code in these classes is essentially unchanged from the Windows Service code except that I could remove the various overrides required for the Windows Service interface OnStart,OnStop,OnResume etc.
Otherwise the behavior and operation is very similar. In this application ASP. NET serves two purposes: It acts as the host for SignalR and provides the administration interface which allows remote management of the 'service'.
I can start and stop the service remotely by shutting down the ApplicationScheduler very easily. I can also very easily feed stats from the queue out directly via a couple of Web requests or as we do now through the SignalR service. Notice also the use of the HostingEnvironment. This function registers an object with ASP. NET to let it know that it's a background task that should be notified if the AppDomain shuts down.
RegisterObject requires an interface with a Stop method that's fired and allows your code to respond to a shutdown request. Here's what the IRegisteredObject::Stop method looks like on the launcher:. Thanks to Justin Van Patten for pointing this out to me on Twitter. RegisterObject is not required but I would highly recommend implementing it on whatever object controls your background processing to all clean shutdowns when the AppDomain shuts down.
I'm still in the testing phase with this particular service to see if there are any side effects. But so far it doesn't look like it. With about 50 lines of code I was able to replace the Windows service startup to Web start up - everything else just worked as is. An honorable mention goes to SignalR 2. Startup feels faster because of the preload. Because the application is running as a Web Server, it's easy to have a Web interface for starting and stopping the services running inside of the service.
For our queue manager the SignalR service and front monitoring app has a play and stop button for toggling the queue. If you want more administrative control and have it work more like a Windows Service you can also stop the application pool explicitly from the command line which would be equivalent to stopping and restarting a service.
You have to manually start it back up. NET applications do have more overhead in terms of memory footprint and startup time is a little slower, but generally for server applications this is not a big deal. If the application is stable the service should fire up and stay running indefinitely.
A lot of times this kind of service interface can simply be attached to an existing Web application, or if scalability requires be offloaded to its own Web server. But the ultimate benefit here is that it's much easier to work with a Web app as opposed to a service.
While developing I can simply turn off the auto-launch features and launch the service on demand through IIS simply by hitting a page on the site. I can then attach a debugger anywhere I want and this works like any other ASP. NET application. Yes you end up on a background thread for debugging but Visual Studio handles that just fine and if you stay on a single thread this is no different than debugging any other code.
Using ASP. NET to run background service operations is probably not a super common scenario, but it probably should be something that is considered carefully when building services. Many applications have service like features and with the auto-start functionality of the Application Initialization module, it's easy to build this functionality into ASP.
Especially when combined with the notification features of SignalR it becomes very, very easy to create rich services that can also communicate their status easily to the outside world. Whether it's existing applications that need some background processing for scheduling related tasks, or whether you just create a separate site altogether just to host your service it's easy to do and you can leverage the same tool chain you're already using for other Web projects.
If you have lots of service projects it's worth considering… give it some thought…. Thanks for an informative article and helpful comments.
IIS memory leak? Use IISRESET
Everything works fine for somewhere between days, and then the site goes down with error Anyone have any ideas? Internal server errors error are often caused by plugin or theme function conflicts, so if you have access to your admin panel, try deactivating all plugins. If that resolves the issue, reactivate each one individually until you find the cause.
SharePoint is a Microsoft technology that enables project collaboration through a single portal. It can be complex, but not when approached the Dummies way! This guide offers eight self-contained minibooks that examine each aspect of SharePoint Whether you're an experienced administrator or developer or you're just getting your feet wet, you'll find it's easy to locate what you need and learn to install, configure, and manage a SharePoint portal.
IIS Web Server
How to perform an IIS Reset using Command Prompt.
Using IISReset.exe to restart Internet Information Services (IIS) results in an error message
These phases are visible in Event Log: when each phase ends, an information event with the messages below is logged: a Service started successfully. Waiting for initialization The "Stop Services" and "Start Services" shortcuts of the OutSystems Platform are designed for a use-case that is different from the ones in a enterprise customer.
I've been working quite a bit with Windows Services in the recent months, and well, it turns out that Windows Services are quite a bear to debug, deploy, update and maintain. On most projects when a service is built, people end up scrambling for the right 'process' to use for administration. Web app deployment and maintenance on the other hand are common and well understood today, as we are constantly dealing with Web apps. There's plenty of infrastructure and tooling built into Web Tools like Visual Studio to facilitate the process. By comparison Windows Services or anything self-hosted for that matter seems convoluted.
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I need to set a scheduled task to restart IIS daily as a temporary workaround for some issues we're having with a web application. I'm seeing that it's not recommended to use iisreset on Server or newer? I was also able to trim back some of the resources because they were no longer being tied up in this bottleneck. Do you actually need to restart IIS, or can you just restart the associated app pool or whatever?
Where can I find my IIS log files?
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How to set task scheduler to reset IIS daily
It is useful as a way to kill and relaunch IIS in many circumstances: as part of a regularly-scheduled batch operation, as a way to insure that Registry and Metabase changes take hold, and as a response to performance monitor alerts in the event of an extreme memory leak. The program will respond with prompts that tell you the progress of the reset, which can take up to a couple of minutes in some cases. The default timeout period is 20 seconds for a restart, 60 seconds for a stop, and zero for a reboot, although you can modify these parameters.
Learning IIS 8 administration doesn't have to be a frustrating experience, you can learn everything you need to manage IIS effectively by reading this book. To learn how to manage IIS, you need practical hands-on advice from an expert who has years of experience working with IIS. William Stanek is such an expert. By reading this book and working step by step through the essential tasks discussed, you can learn to:.
WordPress on IIS, error 500 after a few days of working fine
Microsoft exchange server down. In Control Panel , open the Mail item. In this edition you will see some cool features like mail server, contact manager and calendar software. Being a good 'net citizen means battening down all your services. To further verify that you've successfully recovered a lost server, open the Windows Services tool services. This patch fixes a Remote Code Execution flaw that allows an attacker to send a specially crafted payload to the server and have it execute an embedded command. The installation considers a single server deployment of Exchange Server with the Mailbox role.