I have used Quartz.Net for queuing and sending emails from my application. I don't know how each scheduled job responds to application instance stopping, pausing or shutting down. The IJob interface has no method that can notify a running job about these events.My question is how can I handle these cases when they occur so that the job can exit while leaving the application and the data in a stable state?
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I don't know if this is the right place to post, anyway:Once in a while the application pool of my website has stopped. After taking a look into the Windows logs, In can see in the System log the following: first I see 5 warnings, and then an error. The warning is:"A process serving application pool 'domain.com' suffered a fatal communication error with the Windows Process Activation Service. The process id was '1568'. The data field contains the error number."The process id is different for all 5 warnings. Then the error message is:Application pool 'domain.com' is being automatically disabled due to a series of failures in the process(es) serving that application pool.The warning:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-WAS" Guid="{524B5D04-133C-4A62-8362-64E8EDB9CE40}" EventSourceName="WAS" />
[code]...
My application is running in a shared hosting environment. I do have a dedicated App Pool for my app. I've been doing some testing with 1st visits and precompile performance and have been tracking when my application starts up and shuts down.
In my Global.asax I have some logging code in Application_Start and Application_End. I can see from my logs generally when the application is idle and shuts down, then someone visits and it starts back up.
But, I also see cases where a shutdown is logged and then followed by another shutdown about 13 minutes later; without a startup in the middle.
I also see instances where there are two Startups in a row. I'm guessing these might be a recycle, but why wouldn't there be a shutdown log entry?
What I'd really like to know if there is a better way to track when my application starts, when it shuts down and if it is shutdown due to an idle pool, or from a recycle. I don't have access to the Windows Event Log so I need to do this from my app if possible.
I know that ASP.NET MVC has error filter attribute to handle specified error type. However, this feature cannot catch any error that occurs when application start. Therefore, I need to add some code to "Application_Error" method for handling this error like the following code.
public void Application_Error(object sender, EventArgs e)
{// At this point we have information about the error
var ctx = HttpContext.Current;
var exception = ctx.Server.GetLastError();
[code]...
I am creating a Quartz.NET application in C#, and creating a bunch of administration webpages (C#/ASP.NET) so users can easily create jobs, set datamap fields and edit datamap fields.
I'm having some trouble editting jobs data maps though - any changes I make aren't saved at all. Is there anything I need to call after modifying the jobs data map?
I am using quartz.net and it's great. But what happens if my server is down and I miss an event (I am using a database to store quartz events)? I want to make sure events run, even if they are a week late, but I don't see how this is configured?
View 1 Repliesi have server and that can be accessed by so many agent systems.Through agent system we can give the builds to server .after finishing build, agent system will go to idle state. the thing is that i need to find out the idle agent systems and using my application i need to shutdown that idle systems .i need to check every time for idle agent systems
View 3 RepliesI have a Quartz.NET application where I need the administrators to be able to modify the job details - mostly information in each jobs datamap, but also things like the triggers - here is my code I'm using
protected void ButtonSubmit_Click(object sender, EventArgs e)
{
JobDetail jobDetail = sched.GetJobDetail(hdnID.Value, hdnGroupID.Value);
jobDetail.JobDataMap["idname"] = txtName.Text;
jobDetail.JobDataMap["initialPath"] = TextBox1.Text;
jobDetail.JobDataMap["targetPath"] = TextBox2.Text;
[code]...
I have several important Quartz events that MUST go off at specific times of the night. Lately I have been noticing that not all the events are run. I have a feeling that overnight our server load is very light (ie. zero users) and that the web server kind of goes to sleep, and hence so does Quartz. Does this seem plausible? I am using Quartz.net within the web server, and not as a separate service.
View 2 Repliesi want to cancel order after 24 hours if its not been confirms.
how to do it in asp.net?
I have in my ASP.NET static variable that flushes itself to DB every X insertions.Problem is, if I publish the application , the IIS process is killed with all my static material.How can I preserve it - or how can I flush it once ASP.NET application is shutting down?
View 3 RepliesI ve just added quartz.net dll to my bin and started my example... How to call a c# method using quartz.net based on time?
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Quartz;
using System.IO;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if(SendMail())
Response.write("Mail Sent Successfully");
}
public bool SendMail()
{
try
{
MailMessage mail = new MailMessage();
mail.To = "test@[URL]";
mail.From = "sample@[URL]";
mail.Subject = "Hai Test Web Mail";
mail.BodyFormat = MailFormat.Html;
mail.Body = "Hai Test Web Service";
SmtpMail.SmtpServer = [URL];
mail.Fields.Clear();
mail.Fields.Add([URL], "1");
mail.Fields.Add([URL], "redwolf@[URL]);
mail.Fields.Add([URL], "************");
mail.Fields.Add([URL], "465");
mail.Fields.Add([URL], "true");
SmtpMail.Send(mail);
return (true);
}
catch (Exception err)
{
throw err;
}
}
}
Here i am just sending a mail on page load. How to call SendMail() once in a day at a given time (say 6.00 AM) using quartz.net. I dont know how to get started? Should i configure it in my global.asax file.
I'm trying to get Quartz.net working by embedding into my .Net MVC2 application. I know this is not ideal, but I'm just trying to get it up and running before moving it over to a service. I can't get my jobs to fire off, but I think I'm configured correctly. In my Global.asax.cs:
protected void Application_Start()
{
Quartz.IScheduler scheduler = BuildQuartzScheduler();
}
[code]...
turn off user system when he open the anyname.aspx page in browser or power off the moniter or stop (off )the cpu fan or controling speed of fan... or something like this?
View 12 RepliesRecently I was working on displaying workflow diagram images in our web application. I managed to use the rehosted WF designer and create images on-the-fly on the server, but imagining how large the workflow diagrams can very quickly become, I wanted to give a better user experience by using some ajax control for displaying images that would support zoom & pan functionality.
I happened to come across the website of seadragon, which seems to be just an amazing piece of work that I could use. There is just one disadvantage - in order to use their library for generating deep zoom versions of images I have to use the file structure on a server. Because of the temporary nature of the images I am using (workflow diagrams with progress indicators), it is important to not only be able to create such images but also to get rid of them after some time.
Now the question is how can I best ensure that the temporary image files and the folder hierarchy can be created on a server (ASP.NET web app), and later cleaned up. I was thinking of using the cache functionality and by the expiration of the cache item delete the corresponding image folder hierarchy, or simply in the Application_Start and Application_End of Global.asax delete the content of the whole temporary folder, but I'm not really sure whether this is a good idea and whether there are some security restrictions or file-system-related troubles. What do you think ?
Almost all the applications I worked on involve some look-up values. For example, a lot of times a list of languages ( English, French, etc...) need to be displayed on the WebForm for user to choose.
The common data structure for such look up values include an integer Id and a string as name. Since these look-up values are used so frequently, and they are unlikely to be changed. Most of time, instead of grabbing them from database, I just define a global enum in C# like this
enum Language : int { English = 1, French = 2}
I've been handling look-up values like this for years now. I knew it may not be the best way to handle them. For example, every time a new language is added to the system, somebody needs to remember to update that enum.
I am trying to handle concurrency in my application. Basically if user A has a support ticket open which currently has a status of 'Active' and user 'B' opens the same ticket and closes it (changing its status to closed), I would expect a confict execepton to be thown when user 'A' tries to close the support ticket. For some reason this is not happening. I have checked that Update check is set to 'Always' in the dbml file. Here is an exerpt of my code. // Update 'Active' lead to 'Close'
[Code]....
Hopefully this is the right place for this question. I have done a fair amount of research and yet to find anything that matches what I want. What I'm envisioning is the following. Let me know if any of you know of a program that will do what I want. Also it must be web-based anom user -> fills out form -> email gets sent to admin saying xyz has filled out form abc with links to approve/disapprove request.
admin can also login and edit form and resent results to original submitter. Also once the admin approves/disapproves request the original submitter gets an approve/disapprove email.
and you can search by date submitted, specific project/form, status of request(submitted, approved, disapproved). all on where I could find this? I started to look into drupal with workflows and actions but it just doesn't flow right for this
I am building an intranet website. And I am still unsure of how to implement the security of the website. I am using ASP.NET MVC 3.
Anyone in the company can access the website. It is a recognition system where you can nominate an employee for an award. Currently I am not using any type of authentication. I have a roles table that contains roles and an association table that specifies which user contain what roles, these roles are mainly administrator-type roles. If a user does belong in these roles then he/she can still access various parts of the website.
Would I need to use the built-in membership for this? Or would I need to create a custom membership for this? We don't use a login page. If the user does not have roles to access a view then he/she is redirected to another page.
We use IIS to do our authentication. Is this the same as Windows authentication? I have the roles table used for authorisation.
I have two views in the same folder. View.aspx and a partial
View.ascx
In view.aspx i call RenderPartial
<% Html.RenderPartial("View",MyModel); %>
and MVC renders View.aspx not the partial View.ascx. The net result is an endless loop which eventually causes IIS to shutdown the application.Personally I was expecting the partial view to be rendered.
I see there are 2 possible scenarios as to the session handling:
Open one single ISession per request. Open it at request start and close it at request end.Open one ISession per conceptual "unit of work". Many sessions are created for a request.
The approach #1 is the one I'm doing now. I'm a little bit worried about it because, although it works, it's a little bit difficult to debug. For instance, I have an object not being saved (even though I ordered it to) and I'm having trouble debugging since there's a LOT of things happening during a complete request life-cycle.
The approach #2 seems to be the standard best-practice (not sure about ASP.NET) and I'm sure it's pretty easier to debug. The problem I see is about inter-session communication. For instance: My Page class holds a reference to the User, which is a persistent object. Many of the operations receive the user as parameter. As the user belongs to a different session, I can't pass it as a parameter.
I'm biased to #2, but I don't know if it's the best practice, nor how to deal with cross-session object.
I am writing an asp.net HTTP module which needs to read configuration data once from a local file (say config.xml stored in application root directory) and then based on configuration perform some processing on incoming requests.
Since there is no Application_Start/Application_init hooking available in Asp.NET modules, what would be the best way to handle the scenario. I am trying to avoid reading configuration file each time a request comes. Ideally, I want to read the config file when application starts.
I need to code this in http module only and do not want to use Global.asax
I' am trying to write a aplication using a 3 Tier Model
Data Access Layer <--> Business Logic Layer <--> Presentation Layer
But now i am facing a problem, i need to Handle Transactions i already found a interesting article
[URL] but i have some doubts.
For example when i need to iterate to a Grid in the presentation Layer how will i Use the Transactions??
[Code]....
When setting up asp.net error handlers for things like 404 errors, it is more 'efficient' to do this in IIS, or handle it in the Global.asax Application_Error event? I know the latter will be called, and I want to log this information in a database, but should I then just return without any redirect and let IIS do the redirect, or would it be better to do a response.redirect inside application_error once we've logged it?
View 1 RepliesI want to add quartz scheduling to an ASP.NET application.It will be used to send queued up emails.What are the pros and cons of running quartz.net as windows service vs embedded.My main concern is how Quartz.NET in embedded mode handles variable number of worker processes in IIS.
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