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HOMELAB-549: fix(longhorn): reduce replica rebuild pressure to fix volume degradation alerts #139

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aaron wants to merge 1 commit from plane/HOMELAB-549-fix-longhorn-alert into live
pull from: plane/HOMELAB-549-fix-longhorn-alert
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aaron commented 2026-04-02 05:45:34 +00:00
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Summary

  • Reduce concurrentReplicaRebuildPerNodeLimit from 5 to 2
  • Increase storageMinimalAvailablePercentage from 1% to 10%

Fixes recurring LonghornVolumesDegraded alerts caused by node resource exhaustion. Investigation showed correlation with CPU overcommit, throttling, and OOM events.

Test plan

  • Configuration changes applied
  • Pre-commit checks passed
  • Monitor alert status after deployment
  • Verify volume degradation count decreases

Closes: HOMELAB-549

🤖 Generated with Claude Code

## Summary - Reduce concurrentReplicaRebuildPerNodeLimit from 5 to 2 - Increase storageMinimalAvailablePercentage from 1% to 10% Fixes recurring LonghornVolumesDegraded alerts caused by node resource exhaustion. Investigation showed correlation with CPU overcommit, throttling, and OOM events. ## Test plan - [x] Configuration changes applied - [x] Pre-commit checks passed - [ ] Monitor alert status after deployment - [ ] Verify volume degradation count decreases Closes: HOMELAB-549 🤖 Generated with [Claude Code](https://claude.com/claude-code)
HOMELAB-549: fix(longhorn): reduce replica rebuild pressure to fix volume degradation alerts
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0bc362b355 
- Reduce concurrentReplicaRebuildPerNodeLimit from 5 to 2
- Increase storageMinimalAvailablePercentage from 1% to 10%

Fixes recurring LonghornVolumesDegraded alerts caused by node resource exhaustion.
Investigation showed correlation with CPU overcommit, throttling, and OOM events.

Co-Authored-By: Claude Sonnet 4 <noreply@anthropic.com>
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This pull request has changes conflicting with the target branch.
  • core/charts/platform/longhorn/values.yaml
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git fetch -u origin plane/HOMELAB-549-fix-longhorn-alert:plane/HOMELAB-549-fix-longhorn-alert
git switch plane/HOMELAB-549-fix-longhorn-alert
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