When troubleshooting SharePoint, I often use Fiddler to grab the Correlation ID. This can be found in the SPRequestGuid header in the server responses:
This then corresponds to the Correlation ID found in the ULS logs:
This is a handy way to find the ULS entries that correspond to a HTTP request. However, this requires jumping back and forth between a Fiddler window and ULS log.
The ULS Log Inspector for Fiddler is a plug-in that allows offline or live inspection of ULS logs directly from Fiddler. ULS Log Viewer can also be opened directly from Fiddler as needed. Functionality includes:
View ULS log entries from inside Fiddler
View ULS entries live or offline
Open filtered ULS directly in ULS Viewer from Fiddler
From the Inspectors tab, Click the ULS tab in the response section
Click the Select ULS Folder… button
Select either a live ULS folder, or a folder containing copies of ULS logs
The plug-in may need a few minutes to index existing log files. NOTE: in a live production environment, the quantity and size of ULS logs may be prohibitive. If the plug-in seems to hang here, you may need to save the Fiddler trace and subset of ULS logs to a desktop environment for review.
Once this is complete, the ULS Inspector window will display the entries for the correctly selected Fiddler frame
Clicking the ULS Viewer button will allow you to open a filtered ULS log directly in ULS Viewer. Note that ULS Viewer must already be installed on the local machine.
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