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Add subscription stall diagnostics and reduce WAL prefetch overhead - #18808

Merged

jt2594838 merged 8 commits into

fix/subscription-stall-observability

Oct 12, 2026

Merged

Add subscription stall diagnostics and reduce WAL prefetch overhead#18808
jt2594838 merged 8 commits into
masterfrom
fix/subscription-stall-observability

Commits on Oct 9, 2026
- Add subscription delivery stall and memory overcommit diagnostics
  Caideyipi
  committed
  e3dc705
Commits on Oct 10, 2026
- Merge master into fix/subscription-stall-observability
  Caideyipi
  committed
  0d34a1a
- Add debug tracing for consensus subscription prefetch rounds
  Caideyipi
  committed
  a71f82c
- Avoid redundant WAL work during subscription prefetch
  Caideyipi
  committed
  f228b08
- Make WAL replay diagnostics test locale independent
  Caideyipi
  committed
  133f57b
- Preserve subscription WAL requests across memory backpressure
  Caideyipi
  committed
  b7174d7
Commits on Oct 12, 2026
- Add opt-in subscription WAL prefetch performance comparisons
  Caideyipi
  committed
  accc3c9
- Clarify subscription prefetch tracker synchronization
  Caideyipi
  committed
  0fe8d4b