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Title
# support
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Timothy Wigginton

03/02/2023, 3:37 PM
Hey I was wondering why there is a difference between traces coming from dynamoDB. One uses python and the other uses go but they both use official AWS instrumentation. It seems go stores the operation in aws.operation and python stores the operation in rpc.method. I know the attributes are not set by SigNoz but maybe aws.operation should be read similar to rpc.method?
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Ankit Nayan

03/02/2023, 3:55 PM
If you are talking about the column
Operation
in trace filter page, I don't think SigNoz plays around with it. We analyse different span attributes to create a sensible value for the columns
Method
and
Status Code
keeping in mind http and grpc calls. Are you talking about differences in latencies? Latency usually has nothing to do with what the attribute values are and how are they stored. Can you please be more detailed here? cc: @Vishal Sharma
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Timothy Wigginton

03/02/2023, 4:30 PM
Sorry to be clear I am focused on the method column. It seems that the go and python instrumentation do not set the attributes the same and therefore the go dynomo db calls do not fill in the methods column. The go sets the method in aws.operation even though the instrumentation should be same between languages. Since it’s not is it reasonable for SigNoz to consider aws.operation attribute as a method as well or should I manually inject our spans with the rpc.method?
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Srikanth Chekuri

03/02/2023, 4:52 PM
The instrumentation libraries are not mature yet, so they will have differences. It is indeed an rpc call under the hood. You may want to open an issue here and get that fixed https://github.com/open-telemetry/opentelemetry-go-contrib/tree/main/instrumentation
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Timothy Wigginton

03/02/2023, 5:11 PM
Thank you