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docs(telemetry): add Task 2.9 PathFind instrumentation to Phase 2 task list

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Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Pratik Mankawde
2026-04-21 15:34:28 +01:00
parent 682d7a8d76
commit ed8164d502
1 changed files with 28 additions and 1 deletions
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OpenTelemetryPlan/Phase2_taskList.md
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@@ -161,6 +161,32 @@ This surfaces all RPCs served during a blocked period — critical for post-inci
---
## Task 2.9: PathFind RPC Instrumentation
**Status**: COMPLETE
**Objective**: Trace the path_find and ripple_path_find RPC handlers to capture request latency and computation cost.
**Spans added**:
- `pathfind.request` — wraps `doPathFind()` and `doRipplePathFind()` RPC handlers
- `pathfind.compute` — wraps `PathRequest::doUpdate()` (fast/normal attr)
- `pathfind.update_all` — wraps `PathRequestManager::updateAll()` on ledger close (ledger_index attr)
- `pathfind.discover` — wraps `Pathfinder::findPaths()` graph exploration (search_level attr)
- `pathfind.rank` — wraps `Pathfinder::computePathRanks()` liquidity validation (num_paths attr)
**New file**: `src/xrpld/rpc/detail/PathFindSpanNames.h`
**Modified files**:
- `src/xrpld/rpc/handlers/orderbook/PathFind.cpp`
- `src/xrpld/rpc/handlers/orderbook/RipplePathFind.cpp`
- `src/xrpld/rpc/detail/PathRequest.cpp`
- `src/xrpld/rpc/detail/PathRequestManager.cpp`
- `src/xrpld/rpc/detail/Pathfinder.cpp`
---
## Summary
| Task | Description | Status | Notes |
@@ -173,7 +199,8 @@ This surfaces all RPCs served during a blocked period — critical for post-inci
| 2.6 | Build verification and performance baseline | Complete | Verified in CI on Phase 1c |
| 2.7 | Grafana Tempo search filters | Complete | rpc-command, rpc-status, rpc-role filters |
| 2.8 | RPC span attribute enrichment (node health) | Complete | amendment_blocked + server_state |
| 2.9 | PathFind RPC instrumentation (5 spans) | Complete | request, compute, update_all, discover, rank |
**Delivered in this branch**: Tasks 2.4, 2.7, 2.8.
**Delivered in this branch**: Tasks 2.4, 2.7, 2.8, 2.9.
**Deferred with rationale**: Tasks 2.1 (→Phase 3), 2.5 (low priority).
**Superseded**: Task 2.2 (Phase 1c SpanGuard factory covers this).