Application logging contains just that: application logging. This logs everything that you write out with System. Trace , like Trace. These logs come in. The name is a bit misleading because there is not a lot of detail in these logs.
These logs are very, very detailed. Too detailed for most usage. But if you need to go deep and want to inspect every aspect of the lifecycle of a failed HTTP request, then this is the log you are looking for. They come in. When you open them in Internet Explorer from a directory that also contains the freb. Your Azure IIS logs come in. These logs can help you to troubleshoot your application, but which log types can you use best in which situation?
The illustration below provides some high-level guidance:. Log files are useful and even when you are running in Azure, you have plenty of options to get information from log files. It is difficult to get information from log files as you need to aggregate them and somehow analyze them. These are difficult problems that will slow you down when you are bug-hunting an issue in production. I recommend using tools that visualize the information that is contained in your Azure logs.
You do not have to enable the logs for this specifically as most of these tools capture this information automatically. Tools like Application Insights , Stackify Retrace or New Relic enable you to get an overview of the health of all your applications, including information that is contained in the log files and more.
Using tools like these also enable you to be notified of exceptions so that you can go bug-hunting proactively. NET it's simple to write application logs, just use the Trace class, for example:. In the Azure portal you can direct different verbosity levels to different targets at the same time. The targets are: file system, Azure table storage and Azure blob storage.
For example you can have all Information level and up including Warning and Error logs go to Azure table storage and all logs including Verbose and up go to blob storage. For node. Currently the only supported target for the log files for node. Whatever is written to console output and console error will go to a log file for the specific triggered webjob run.
The first log entries when the continuous WebJob starts will also show up in the continuous WebJob log file that is available on the WebJobs dashboard.
If you're using. NET website. Once you use the Trace class, your traces are handled as application logs including triggered WebJobs. There are a couple a differences between logs stored in file system, table storage and blob storage:.
The activity id field can be very powerful. It can help you correlate all log entries which came from a single request. Click on your site within the tree view or double click on it within the grid view on the right side. Double click on the Logging icon to open the logging settings screen. On the logging settings screen, you can find where your IIS log files are located in the Directory field.
Navigate to the IIS log files location listed in the directory field. Withing the folder, you will find subfolders for each site configured with IIS. The number at the end of the folder name corresponds to your site ID mentioned in step 2 above. If you are using Azure App Services, you know that they are very different than using and managing your own Windows Server.
For Azure App Services you have first to ensure that web server logging is enabled. We have a great blog post dedicated to all of the log files for your Azure App Service. To access your log files, you will need to use Remote Desktop to connect to an individual server. Azure App Service - Web Apps. Sign in to vote. Hello, BizSpark partner I am beginning to explore Azure and started by simply deploying a website which was BTW pretty painless - thank you!
Best Regards, Alan. Thursday, October 2, PM. Hi Vegan, I'd like to understand your response, but I'll need a few more details.
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