Error: Specified value has invalid Control characters about azure-data-lake-store-net

[rahuldutta90]

@lpunderscore What is the version of sdk you are using?1.1.8? 1.1.8 had this issue. If you are using 1.1.8, can you pelase switch to 1.1.9?

[lpunderscore]

@rahuldutta90 I'm using 1.1.8 yes. Will update to 1.1.9 and monitor the result. Will keep you posted, I get thousands of those every day, I should know quickly.

[rahuldutta90]

@lpunderscore little context why you are seeing this error: We send a latency details of previous request as a part of a custom header of the current request. Now when there is a exception, the error details are also sent as a part of http header. Some errors which are not handled properly can cause the error message have these invalid characters for http header.

1.1.8 had a bug due to which lot of other people faced same error. Just curious: do you know if you were getting Unauthorized error or BadRequest error.

Now updating to 1.1.9 might not fix it because there might be some dotnet exception that returns control characters as part of exception message. So if it does not fix it, then you can try setting LatencyTracker.Disable() at the begining of code so that the sdk does not pass latency details and we can isolate the actual exception.

[lpunderscore]

The exception I posted is all the data I could find in application insights of the error. It says "Unkonwn error" with the stack trace. I don't know the nature of the underlying exception since the dependency doesn't report it apparently.

[lpunderscore]

So far I have not received this error in the last 12 hours of running (couple million requests to DL).
Thanks!

Will update if it happens again.

[rahuldutta90]

I am closing the issue. Please reopen it, if you encounter this again.