Can I enable tracing in OWIN?

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I have an environmental problem somewhere in OWIN and I want to get some information about what is happening. I have read that I can enable tracing but can\'t find much info

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暗喜

2021-01-08 00:42

Not 100% sure that this will solve your issue, but we got it working with following config. Slight difference in the following line:

<source name="Microsoft.Owin" switchName="Microsoft.Owin" switchType="System.Diagnostics.SourceSwitch">

Notice that the <source> tag includes a switchName (and switchType) attribute which is missing from your example. I think that this instruction links the TraceSource with the Switch and makes the entire work.

In our case, we use trace listeners for Azure Web sites (and web jobs).

 <system.diagnostics>
    <sharedListeners>
      <add name="AzureTableTraceListener" type="Microsoft.WindowsAzure.WebSites.Diagnostics.AzureTableTraceListener, Microsoft.WindowsAzure.WebSites.Diagnostics, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
      <add name="AzureBlobTraceListener" type="Microsoft.WindowsAzure.WebSites.Diagnostics.AzureBlobTraceListener, Microsoft.WindowsAzure.WebSites.Diagnostics, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
      <add name="AzureDriveTraceListener" type="Microsoft.WindowsAzure.WebSites.Diagnostics.AzureDriveTraceListener, Microsoft.WindowsAzure.WebSites.Diagnostics, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
    </sharedListeners>
    <sources>
      <source name="Microsoft.Owin" switchName="Microsoft.Owin" switchType="System.Diagnostics.SourceSwitch">
        <listeners>
          <add name="AzureTableTraceListener"/>
          <add name="AzureDriveTraceListener"/>
        </listeners>
      </source>
    </sources>
    <switches>
      <add name="Microsoft.Owin" value="All" />
    </switches>
    <trace autoflush="true" indentsize="4" />
  </system.diagnostics>

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