Issue with Signoz Tracer on Python FastAPI Application
TLDR Snehanshu is experiencing an issue with the Signoz tracer on a Python FastAPI application which involves a large number of irrelevant spans. vishal-signoz suggested verifying the relevance of these spans and questioned about the type of instrumentation used by Snehanshu.
vishal-signoz
Thu, 17 Aug 2023 07:10:43 UTCHow many spans are there? The community edition supports upto 10k spans in a single trace. The enterprise plan has a feature which allows upto 100k spans in a single trace.
Snehanshu
Thu, 17 Aug 2023 07:31:46 UTCvishal-signoz 2998 spans coming up. However i have attached traces only to few methods. These many spans showing up when jpype is used. Other cases only the required number of spans show up. Is it normal behaviour or something is wrong from my code end?
vishal-signoz
Thu, 17 Aug 2023 07:32:39 UTCCan you check if the spans are relevant?
Snehanshu
Thu, 17 Aug 2023 07:33:03 UTCNo they are not relevant. they have time spans of 0.01 microseconds.
vishal-signoz
Thu, 17 Aug 2023 07:33:05 UTCOur enterprise customers do have thousands of spans so depends on your system.
Snehanshu
Thu, 17 Aug 2023 07:33:33 UTCOutside of the main span which is actually required.
vishal-signoz
Thu, 17 Aug 2023 07:36:23 UTCAre they duplicates? Can you their name and attributes?
Snehanshu
Thu, 17 Aug 2023 07:36:24 UTCIf you see this screenshot, the upload span is the only required span, however the POST/ ones are in huge number coming up.
Snehanshu
Thu, 17 Aug 2023 07:36:38 UTCYes they are duplicates the POST/ ones
vishal-signoz
Thu, 17 Aug 2023 07:38:02 UTCI didn’t find any relevant github issues on jpype. How did you instrument?
Snehanshu
Thu, 17 Aug 2023 07:39:02 UTCfrom opentelemetry import trace tracer = trace.get_tracer(__name__) with tracer.start_as_current_span("file_response"):
vishal-signoz
Thu, 17 Aug 2023 07:39:28 UTCSo you are manually instrumenting?
Snehanshu
Thu, 17 Aug 2023 07:39:45 UTCYes within each method which i want to be monitored. Usig this. with tracer.start_as_current_span("file_response"):
Snehanshu
Thu, 17 Aug 2023 07:41:24 UTCThere is a nested method calls which comes up perfectly as in the screenshot marked with 7, upload.
Snehanshu
Thu, 17 Aug 2023 07:41:54 UTCHowever i am not able to get why those extra POST spans are showing up.
Snehanshu
Thu, 17 Aug 2023 08:02:54 UTCAlso FYI, the API is being run by the command:
OTEL_RESOURCE_ATTRIBUTES=service.name=autofill_exports OTEL_EXPORTER_OTLP_ENDPOINT="
vishal-signoz
Thu, 17 Aug 2023 09:04:40 UTCAny reason why you are not using auto instrumentation?
Snehanshu
Thu, 17 Aug 2023 09:44:33 UTCWhen using auto instrumentation i was not getting spans for individual methods.
Snehanshu
Thu, 17 Aug 2023 09:44:53 UTCOr could you point me to any correct resource?
Snehanshu
Thu, 17 Aug 2023 09:45:23 UTCusing auto instrumentation?
Snehanshu
Thu, 17 Aug 2023 09:53:04 UTC
Snehanshu
Sun, 20 Aug 2023 07:32:05 UTCvishal-signoz if you could answer this?
SigNoz Community
Indexed 1061 threads
Built with ClickHouse as datastore, SigNoz is an open-source APM to help you find issues in your deployed applications & solve them quickly | Knowledge Base powered by Struct.AI
View in App
Snehanshu
Thu, 17 Aug 2023 04:24:33 UTCHi team, when I am using Signoz tracer to monitor a method in my Python FastAPI application which involves jpype library, there is huge numbr of traces coming up on the UI and also the UI hangs on opening up that particular request. Could anyone help me know why this is happening?