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[Router] Prewarm a booting replica's cache-aware tree from a warm sibling - #39750

Closed

Kangyan-Zhou wants to merge 10 commits into

sgl-project:mainfrom

Kangyan-Zhou:router-peer-bootstrap

Closed

[Router] Prewarm a booting replica's cache-aware tree from a warm sibling#39750
Kangyan-Zhou wants to merge 10 commits into
sgl-project:mainfrom
Kangyan-Zhou:router-peer-bootstrap

Commits on Sep 16, 2026
- feat(sgl-router): give the cache-aware tree a snapshot surface
  
  kzhou-radixark
  and
  claude
  committed
  3fe25b0
- feat(sgl-router): serve the cache-aware tree at /internal/kv_snapshot
  
  kzhou-radixark
  and
  claude
  committed
  1f1069e
- feat(sgl-router): name a replica's siblings with --kv-peer-selector
  
  kzhou-radixark
  and
  claude
  committed
  8b4cb96
- feat(sgl-router): watch EndpointSlices for sibling router replicas
  
  kzhou-radixark
  and
  claude
  committed
  3f56350
- feat(sgl-router): vet a peer's snapshot before it may touch the tree
  
  kzhou-radixark
  and
  claude
  committed
  fe7e705
- feat(sgl-router): graft a peer's tree snapshot under the live delta stream
  
  kzhou-radixark
  and
  claude
  committed
  b403c79
- feat(sgl-router): ask the fleet when a graft's splice goes unwitnessed
  
  kzhou-radixark
  and
  claude
  committed
  c04b0d3
- test(sgl-router): prove a bootstrapped replica answers like the one it copied
  
  kzhou-radixark
  and
  claude
  committed
  c62798b
- test(sgl-router): k8s e2e for cache-aware peer bootstrap
  
  kzhou-radixark
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  claude
  committed
  94f926c
- feat(sgl-router): gate readiness on peer bootstrap, and make it observable
  
  kzhou-radixark
  and
  claude
  committed
  a9c44dc