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#support
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# support
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Bhuwan Kaushik

03/24/2023, 11:23 PM
Hi, Can anyone tell what is the reason of getting missing spans? I don't find any detail in the link too https://signoz.io/docs/userguide/traces/#missing-spans
@Pranay I am still not clear on missing spans. Can any one guide on this?
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Ankit Nayan

03/27/2023, 3:59 PM
@Bhuwan Kaushik It might be due to • sampling. Do you do some sampling before sending to SigNoz? • otel-collectors at SigNoz or agents not sending all spans due to high load
@Bhuwan Kaushik how many spans/s are you sending to SigNoz?
3rd reason could be - you are viewing the spans in UI before a trace is complete. This is usually the case with long running request, background jobs, async services. How much time do you see a trace take when it has no missing spans. Probably check for an older data like 1hr, 6hr ago
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Bhuwan Kaushik

03/27/2023, 9:14 PM
Thank @Ankit Nayan will check on this.
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