mayank
mayank2mo ago

hey @Marc

hey @Marc yesterday my team had a zoom meeting with you, where they asked about the missing traces, let me give you more context so you can help us better. i have made a simple RAG app using langchain, where langfuse is not able to trace output, PFA screensnap
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mayank
mayank2mo ago
by investigating further on traces, where we got output traced and where not, i found that the trace about "StrOutputParser" is missing in the trace where outout is not traced. PFA screenshot of both the traces.
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Marc
Marc2mo ago
Super helpful. This is most likely and issue with flushing the data to the Langfuse api. Have a look here for more details: https://langfuse.com/faq/all/missing-traces
mayank
mayank2mo ago
Thanks, it works. but need help in another issue. yesterday i have added only 4 metrics in my evaluation configs, today i have added some more by customising, problem is when i ran a sample rap code it is able to evaluate on new metrics also which i have added today but my rag application only evaluate using 4 metrics which i have added yesterday. why my rag application is not able to capture new metrics?? PFA screenshots.
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mayank
mayank2mo ago
and sometime it is not able to evaluate, it only take 10 sec to show evaluation, but not consistent in my scenario?
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Marc
Marc2mo ago
would love to have a look together in case you have 5 minutes to demo this issue: cal.com/marc-kl/5