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Given a GCP service with target concurrency set to 10 and current average requests per instance is 25, what is the expected behavior?

medium📝 service behavior Q4 of 15
GCP - Cloud Run
Given a GCP service with target concurrency set to 10 and current average requests per instance is 25, what is the expected behavior?
AThe system will keep the number of instances unchanged
BThe system will decrease the number of instances
CThe system will increase the number of instances
DThe system will restart all instances
Step-by-Step Solution
Solution:

  1. Step 1: Compare current requests per instance with target concurrency

    Current requests (25) exceed target concurrency (10), indicating overload.

  2. Step 2: Determine scaling action

    The system will add instances to reduce load per instance.

  3. Final Answer:

    The system will increase the number of instances -> Option C

  4. Quick Check:

    Requests > target concurrency = scale up [OK]
Quick Trick: Requests above target concurrency trigger scaling up [OK]
Common Mistakes:
  • Thinking system scales down on high load
  • Assuming no change when requests exceed target
  • Believing instances restart automatically

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