diagnostics-eventflow | Microsoft Diagnostics EventFlow | Azure library
kandi X-RAY | diagnostics-eventflow Summary
kandi X-RAY | diagnostics-eventflow Summary
The EventFlow library suite allows applications to define what diagnostics data to collect, and where they should be outputted to. Diagnostics data can be anything from performance counters to application traces. It runs in the same process as the application, so communication overhead is minimized. It also has an extensibility mechanism so additional inputs and outputs can be created and plugged into the framework.
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QUESTION
On my production server I get the error:
Could not load file or assembly 'System.Net.Http, Version=4.2.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.
On my local machine it works fine, but on the server it throws the above error, so there must be a missing file somewhere. See update 3 where I tried adding the missing dll, which then throws a different error.
I followed instructions in these links:
- Strange issue with System.Net.Http 4.2.0.0 not found
- https://github.com/Azure/diagnostics-eventflow/issues/155
- https://github.com/dotnet/standard/issues/891
As also stated in the last link, I' in the same scenario where I don't yet want to migrate (https://docs.microsoft.com/en-us/nuget/consume-packages/migrate-packages-config-to-package-reference), as I don't want to run into incompatibilities, I first want to fix the current issue.
I already looked for all references of System.Net.Http
(and a few others) and manually changed version numbers, this is the old codeblock in my .vbproj file:
ANSWER
Answered 2019-Aug-24 at 13:26This does not answer your question, but I've had a lot of luck using fuslogvw to track down issues like this. It's installed with visual studio by default, and documented at
https://docs.microsoft.com/en-us/dotnet/framework/tools/fuslogvw-exe-assembly-binding-log-viewer
Once you run it (it's simple, and you can copy it to another machine without having to install anything), it will tell you exactly why the problem is occurring:
The tool displays the following details about the selected bind failure:
The specific reason the bind failed, such as "file not found" or "version mismatch".
Information about the application that initiated the bind, including its name, the application's root directory (AppBase), and a description of the private search path, if there is one.
The identity of the assembly the tool is looking for.
A description of any Application, Publisher, or Administrator version policies that have been applied.
Whether the assembly was found in the global assembly cache.
A list of all probing URLs.
QUESTION
I am trying to set up a simple ETW and EventFlow example that allows specific ETW providers to be monitored. In this case the Service Control Manager ETW provider to monitor when Service Start and Stop messages are issued.
I have the following input configuration for Tracing and ETW.
...ANSWER
Answered 2017-Oct-11 at 22:11If you want to listen for ETW events from the Service Control Manager, you'll need to listen for the provider named Microsoft-Windows-Services.
Here is what I have in my eventFlowConfig.json
QUESTION
I am planning to use PerformanceCounter for one of my project. I knew only about Microsoft.Diagnostics. However I stumbled upon a rather newer library Microsoft.Diagnostics.EventFlow under official Microsoft Azure project which seem to provide similar functionality.
I am unfamiliar with Azure services and its libraries, so apologies if these two libraries are completely orthogonal.
...ANSWER
Answered 2017-Sep-30 at 07:03The EventFlow library uses the performance counter in the Microsoft.Diagnostics namespace as can be seen here. It does not provide any performance counters on its own.
The EventFlow library lets you capture the data for specific performance counters and output that data to one of the supported outputs. It is not designed to read the data directly, but to route it to another destination like application insights as stated at the introduction:
The EventFlow library suite allows applications to define what diagnostics data to collect, and where they should be outputted to
So, summarized: to directly read the values of the performance counters use the classes in the Microsoft.Diagnostics namespace. To log the values somewhere else use the EventFlow library.
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Install diagnostics-eventflow
To quickly get started, you can create a simple console application in VisualStudio and install the following Nuget packages: Microsoft.Diagnostics.EventFlow.Inputs.Trace Microsoft.Diagnostics.EventFlow.Outputs.ApplicationInsights Microsoft.Diagnostics.EventFlow.Outputs.StdOutput
Add a JSON file named "eventFlowConfig.json" to your project and set the Build Action property of the file to "Copy if Newer". Set the content of the file to the following:
If you wish to send diagnostics data to Application Insights, fill in the value for the instrumentationKey. If not, you can send traces to console output instead by replacing the Application Insights output with the standard output. The outputs property in the configuration should then look like this:
Create an EventFlow pipeline in your application code using the code below. Make sure there is at least one output defined in the configuration file. Run your application and see your traces in console output or in Application Insights.
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