Are there any opensource/commercial tools available which monitors and notifies the team about the errors logged in the Azure webapp error logs.
Edit: require an email as soon as error logs.
You can use Application Insights.
You can log and monitor web server diagnostics and application diagnostics.
Application diagnostics
Application diagnostics allows you to capture information produced by a web application. ASP.NET applications can use the System.Diagnostics.Trace class to log information to the application diagnostics log. For example:
System.Diagnostics.Trace.TraceError("If you're seeing this, something bad happened");
To enable diagnostics in the Azure Portal, go to the blade for your web app and click Settings > Diagnostics logs.
When you enable application diagnostics you also choose the Level. This setting allows you to filter the information captured to informational, warning or error information. Setting this to verbose will log all information produced by the application.
Alerts
In Application Insights, you can create custom metric alerts. You could set up an alert on the Metric 'Exception Rate' and set up an email address as a notification point.
Articles
Here is a good article on this topic on how to use Application Insights and Trace listeners.
Related
I am working on the ASP.Net MVC 4.8 application. It does have Logs file log4net and it was deployed in on-premises. Now it has been migrated to Azure. Now I am trying to find out some errors and other logs information however I am not able to find where to go and look for the logfile. I have two interest, 1 check the error messages and any log information.
If I need to make some changes what would be the easiest and straightforward way to capture logs and view them in Azure portal. As you can see in the picture below unter Monitoring there are many ways are given to see the logs but I am not sure where to go.
The app service will create an application insights of the same name.
This application Insights will contain all the logs regarding the web app along with performance data and other telemetry data too.
You can view logs live under live metrics tab in application insights of the same name as web app .
Here I have deployed a simple mvc app which logs using Ilogger (typical boilerplate app which visual studio provides ) . IT will log once I refresh the page.
Refer these MS DOCS on application insights
Use case is as soon as an error occurs in application, support team should receive a notification.
Looking for an out of box solution in Azure.
Current system configured for Diagnostic logs with below settings:
Application Logging (Blob) - On
Logging Level - Error
Retention period - X days.
As far as I know, azure app service has Alerts feature. By using this feature, you could define which metrics will send the email.
About how to use it, you could refer to below images:
1.Find the alters in your from azure portal app service.
2.Click add alerts
3.Define alert rule
Having difficulty getting diagnostic details out of my logic app. I have enabled the diagnostics, bit the event hub and log analytics for work flow runtime. But at this time I'm not seeing anything coming out. I have also checked the diagnostic logs table and nothing. this is a very basic POC logic app.
Do I need to do anything else.
You can set up the log analytics(OMS) workspace in azure and link it with the logic app. For the existing logic apps, we can add this via diagnostics settings under monitoring.
I'm building an Azure web-app and if there are certain unexpected errors, I want to be able to bubble it up in the Azure Dashboard / add alerts.
Any System.Diagnostics.Trace.TraceError() messages are logged to the ApplicationLog. Is there a way to add alert/monitoring-graphs for these in Azure Portal?
I think and most flexible option for configuring alerts on Web Apps is enabling the Application insights have the App Insight be one of your event sources:
https://azure.microsoft.com/en-us/documentation/articles/app-insights-search-diagnostic-logs/
Once you have the Application Insight setup then you can easily set any kind of alerts based on the diagnostics that are collected:
https://azure.microsoft.com/en-gb/documentation/articles/app-insights-alerts/
Aram's links below really helps. Please read them.
To Get this working:
Add the ApplicationInsights to your project.
(Optional) If you want log traces (System.Diagnostics.Trace) to be searchable on insights, add Microsoft.ApplicationInsights.TraceListener nuget to your project.
Use telemetryClient.TrackException() to place a server exception
when you hit a critical error.
Add an alert on Azure portal to check for ServerExceptions within the given time window.
I've recently starting experimenting with azure cloud hosting and my web app had about 10 minutes down time today.
I'm not sure why and I was wondering what tools I have available for determining the cause of the downtime.
You have application logs and site logs. Basically application logs are information produced by your web app code. You can use instrumentation to trace call and exceptions in your appliction. Site logs are information produced by the web server and you can see error messages and failed request tracing without instrumenting your code. You won't have relevant information now since by default all diagnostics are turned off but if it happens again you know where to look for.
Here's how to enable and visualize this information.
Enable diagnostics logging for web apps in Azure App Service
https://azure.microsoft.com/en-us/documentation/articles/web-sites-enable-diagnostic-log/