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chore: Reduce sample rate for RUM sessions #17443

Merged
merged 1 commit into from
Jan 8, 2025
Merged

chore: Reduce sample rate for RUM sessions #17443

merged 1 commit into from
Jan 8, 2025

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@eirikurn eirikurn commented Jan 8, 2025

Summary by CodeRabbit

  • Performance
    • Reduced user monitoring sampling rate to optimize data collection and resource usage.

@eirikurn eirikurn requested a review from a team as a code owner January 8, 2025 12:24
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Walkthrough

The pull request modifies the initDdRum function in the user-monitoring.ts file by changing the sampleRate parameter from 100 to 10. This adjustment reduces the frequency of user interaction data collection in the Datadog Real User Monitoring (RUM) initialization. The change impacts how often user interactions are tracked and reported, while maintaining the overall structure and functionality of the function.

Changes

File Change Summary
libs/user-monitoring/src/lib/user-monitoring.ts Reduced sampleRate from 100 to 10 in datadogRum.init method

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automerge

Suggested reviewers

  • robertaandersen

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Actionable comments posted: 0

🧹 Nitpick comments (1)
libs/user-monitoring/src/lib/user-monitoring.ts (1)

21-21: Document the sampling rate change.

Consider adding a comment explaining why 10% was chosen as the optimal sampling rate to help future maintainers understand the decision.

+    // Sampling 10% of sessions provides sufficient monitoring coverage while optimizing costs
     sampleRate: 10,
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  • libs/user-monitoring/src/lib/user-monitoring.ts (1 hunks)
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libs/user-monitoring/src/lib/user-monitoring.ts (1)

Pattern libs/**/*: "Confirm that the code adheres to the following:

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🔇 Additional comments (2)
libs/user-monitoring/src/lib/user-monitoring.ts (2)

21-21: LGTM! Consider monitoring coverage impact.

The reduction in sample rate to 10% aligns with the PR objective. This change will significantly reduce data collection volume while maintaining monitoring capabilities.

Please monitor these metrics after deployment to ensure adequate coverage:

  • Error detection rates
  • Performance metrics reliability
  • User journey tracking completeness

21-21: Verify monitoring coverage requirements.

Let's ensure this sampling rate meets your monitoring SLAs and requirements.

Run this script to check current RUM usage patterns:

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codecov bot commented Jan 8, 2025

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 35.66%. Comparing base (e2ecff6) to head (d57640a).
Report is 5 commits behind head on main.

Additional details and impacted files

Impacted file tree graph

@@            Coverage Diff             @@
##             main   #17443      +/-   ##
==========================================
- Coverage   35.67%   35.66%   -0.01%     
==========================================
  Files        6938     6938              
  Lines      149103   149103              
  Branches    42636    42636              
==========================================
- Hits        53187    53184       -3     
- Misses      95916    95919       +3     
Flag Coverage Δ
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see 3 files with indirect coverage changes


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Datadog Report

All test runs 6190625 🔗

10 Total Test Services: 0 Failed, 10 Passed
🔻 Test Sessions change in coverage: 5 decreased, 1 increased (+0.09%), 194 no change

Test Services
This report shows up to 10 services
Service Name Failed Known Flaky New Flaky Passed Skipped Total Time Code Coverage Change Test Service View
air-discount-scheme-backend 0 0 0 63 0 27.42s N/A Link
air-discount-scheme-web 0 0 0 2 0 6.65s N/A Link
api 0 0 0 4 0 2.48s N/A Link
api-catalogue-services 0 0 0 23 0 8.97s N/A Link
api-domains-air-discount-scheme 0 0 0 6 0 16.57s N/A Link
api-domains-assets 0 0 0 3 0 9.6s N/A Link
api-domains-auth-admin 0 0 0 18 0 10.29s 1 no change Link
api-domains-communications 0 0 0 5 0 30.38s N/A Link
api-domains-criminal-record 0 0 0 5 0 8.51s 1 no change Link
api-domains-driving-license 0 0 0 23 0 27.03s N/A Link

🔻 Code Coverage Decreases vs Default Branch (5)

  • message-queue - jest 67.46% (-0.8%) - Details
  • clients-middlewares - jest 75.77% (-0.19%) - Details
  • cms-translations - jest 48.18% (-0.04%) - Details
  • application-template-api-modules - jest 30.1% (-0.02%) - Details
  • services-user-notification - jest 68.85% (-0.01%) - Details

@eirikurn eirikurn merged commit f2d943e into main Jan 8, 2025
276 checks passed
@eirikurn eirikurn deleted the eirikurn-patch-1 branch January 8, 2025 14:06
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