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If spans are missing from the Jaeger UI for certain microservices, which of the following is the most probable cause?

medium📝 Analysis Q6 of 15
Microservices - Monitoring and Observability
If spans are missing from the Jaeger UI for certain microservices, which of the following is the most probable cause?
AThe instrumentation library is not properly integrated in those services
BThe services are running on outdated hardware
CThe network latency is too low
DThe services are using synchronous calls only
Step-by-Step Solution
Solution:

  1. Step 1: Identify cause of missing spans

    Missing spans usually indicate lack of instrumentation or misconfiguration.

  2. Step 2: Evaluate other options

    Hardware age, network latency, or sync calls do not cause missing spans directly.

  3. Final Answer:

    The instrumentation library is not properly integrated in those services -> Option A

  4. Quick Check:

    Missing spans usually mean missing instrumentation [OK]
Quick Trick: Missing spans often mean missing or faulty instrumentation [OK]
Common Mistakes:
MISTAKES
  • Blaming hardware or network latency
  • Assuming synchronous calls cause missing spans
  • Ignoring instrumentation setup

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