The nudb_bytes label value on the storage_detail gauge named something the
code never measured. It observes Database::getStoreSize(), which returns the
storeSz_ accumulator: the cumulative payload bytes of objects this process
handed to the NodeStore. That is not a NuDB file size. It excludes NuDB's
keys, bucket padding and log, and it resets with the process while the files
on disk do not.
The name caused two concrete errors. It invited sizing the store on disk from
a number that cannot do it, and it invited a write-amplification ratio against
node_written_bytes -- which reads the same accessor at MetricsRegistry.cpp:836,
so that ratio is a constant 1.0 and measures nothing.
The nudb_ prefix was wrong too. storeSz_ is written only by
Database::storeStats(), called from DatabaseNodeImp, DatabaseRotatingImp and
Database itself. No backend code touches it, so the value reads the same on
RocksDB. That distinguishes it from the real nudb_* family
(nudb_writers_in_flight and friends), which come from getWriteStats() and are
absent entirely on a non-NuDB backend.
stored_object_bytes says what the value is and claims nothing about the
filesystem. Docs already described the value correctly; they keep that
explanation and now also record the old name, so a query pinned to it can be
traced. Neither Backend nor Database exposes an on-disk size accessor and none
was added -- no metric reports the store's on-disk size today.
Updates the node-health panel title, description and PromQL, and the four docs
that name the label value.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
nudb_bytes was documented as a NuDB file size, one place even claiming a
filesystem stat. It observes Database::getStoreSize(), which sums the object
payloads this process has written. It excludes NuDB's keys, bucket padding and
log, and resets with the process. node_written_bytes calls the same accessor, so
the two series are equal by construction and a write-amplification ratio built
from them is a constant 1.0. Neither Backend nor Database exposes a file-size
accessor, so nothing reports on-disk size today.
The Ledger Data & Sync panel plotting node_reads_hit / node_reads_total was
titled "NuDB Cache Hit Ratio" and described as reads served from cache.
fetchHitCount_ increments whenever a fetch returned an object, whatever served
it, so the ratio is a found rate. It reads near 100% while every fetch goes to
disk, which made the cold-read failure mode look impossible. Renamed to
"NuDB Read Found Ratio" and rewrote the guidance to pair it with read latency.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Move the standalone External Dashboard Parity design spec out of
docs/superpowers/ (which the project guidelines say not to create) and into
an appendix of OpenTelemetryPlan/06-implementation-phases.md, so the phase
plan is self-contained. Repoint the 10 "Source" links in the phase 3/4/7
task lists to the new appendix anchor.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Bring phase-8 (log correlation) and the naming-check + BasicConfig fixes forward
into phase 9 (native-metrics gap fill). Phase 9 adds MetricsRegistry and
LedgerSpanNames.h.
Conflict resolution:
- presentation.md: took phase-9's restructured deck — sampling now lives in
Slide 8 (Head vs Tail) and the Phase 10/11/12 future-phase slides; phase-8's
older standalone sampling section is superseded (no content lost).
- ordering.txt/loops.txt: regenerated via generate.py.
Naming check: A/B/E/F/G green. Rule D reports 6 findings that are all check
gaps, not data errors (verified every dashboard label traces to code):
- 3 are TraceQL `span.<attr>` references (bare attr is in L1); Rule D should
strip the span./resource. scope prefix.
- 2 (`reason`, `job_type`) are native OTel metric labels emitted by
MetricsRegistry.cpp — a new source of truth the check does not yet model.
The Rule D enhancement lands on phase-1c and merges forward.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Bring native-metrics (phase 7) and the naming-check work forward into phase 8
(log correlation).
Conflict resolution — tempo.yaml datasource provisioning (search.filters):
- Took phase-7's complete 30-filter list as the base (it is the comprehensive
set), preserved phase-8's tracesToLogs Loki-correlation block, and added
phase-8's two unique filters (tx-type, ledger-hash). Verified the result is
the full union (32 filters) with no filter dropped and no duplicate ids.
- Fixed a pre-existing dotted tag carried in from phase-7: the
consensus-ledger-id filter used `xrpl.consensus.ledger_id`; the code emits
the underscore key `consensus_ledger_id` (ConsensusSpanNames.h), so the
dotted form was a dead filter. Now corrected.
Every span-scope filter tag verified to exist in the L1 *SpanNames.h key set.
Naming check green; 72 tests pass.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Bring the hardened OTel naming check (Rule E fix + 71 tests) and the phase 1-6
convention work forward into phase 7 (native metrics).
Conflict resolution:
- 05-configuration-reference.md: kept phase-7's native-OTLP metrics story
(server=otel, /v1/metrics) over phase-6's superseded StatsD scrape job, in
prose form (no code block).
- ordering.txt/loops.txt: regenerated via generate.py (not hand-edited).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The two "Spans Produced" tables in 06-implementation-phases.md (added by the
Phase 4 consensus work) listed span ATTRIBUTE keys in the dotted
xrpl.consensus.* / ledger.seq / mode.old form. Convert them to the underscore
convention, matching the authoritative ConsensusSpanNames.h constants
(consensus_round, ledger_seq, consensus_mode, consensus_round_id,
consensus_ledger_id, consensus_result, mode_old/new, agree_count/disagree_count,
etc.). Span NAMES in column 1 stay dotted (rule 5). Every key verified to exist
as a constant in ConsensusSpanNames.h / SpanNames.h.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Phase 4 added a span catalog in `06-implementation-phases.md` listing the
source location for each consensus span. Line numbers `Consensus.h:707`,
`RCLConsensus.cpp:232/341/492/541/900` drift on every refactor and would
become stale PR after PR. Filename alone is enough for operators to
grep — the RCLConsensus.cpp spans are already unambiguous from the span
name itself.
Phase-6 introduces ledger-operations, peer-network, and the five StatsD
dashboards. Align them with the rest of the chain:
- Rename dashboard UIDs from `rippled-*` to `xrpld-*` so the provisioned
UIDs match the post-rename-script documentation (`docs.sh` rewrites
.md but not .json, so the two drifted). Runbook references
`xrpld-rpc-perf`, `xrpld-transactions`, etc., now the JSON matches.
- Add the `$node` template variable + `exported_instance=~"$node"` filter
to every target in the five `statsd-*` dashboards. Mirrors the pattern
already used by consensus-health, ledger-operations, and peer-network
per the project rule that every dashboard must support per-node
filtering.
- Strip `:<line>` (and `:NN-NN` range) suffixes from C++ file references
in every dashboard panel description and in docker/telemetry/TESTING.md.
Line numbers drift on every refactor; the filename alone is enough to
grep.
- Replace stale `rpc.request` entries with the real emitted span names
(`rpc.http_request`, `rpc.ws_upgrade`, `rpc.ws_message`, `rpc.process`)
in TESTING.md so operators can copy-paste the filters and hit real
traces.
- Also drop the `:706` line ref from the `StatsDCollector.cpp` callout
in `06-implementation-phases.md`.
Phase-1a plan documents advertised OTLP/gRPC on port 4317 as the default
exporter, four unparsed [telemetry] config keys, and "Phase 4a Complete"
status with exit-criteria checkboxes marked done. Every downstream branch
through Phase 5 ships only OTLP/HTTP on port 4318 via OtlpHttpExporterFactory,
never parses the advertised keys, and the Phase 4 work is not yet delivered.
Fixes:
- 02-design-decisions.md: flip §2.1.1 SDK dependency recommendations to
OTLP/HTTP (shipped) with OTLP/gRPC marked Future. Update §2.2 architecture
diagram and text from OTLP/gRPC:4317 to OTLP/HTTP:4318. Rewrite §2.2.1 as
"OTLP/HTTP (Shipped)" and §2.2.2 as "OTLP/gRPC (Future Work — Planned
Upgrade)" with a concrete checklist (Conan dep, config parsing, factory
branch, runbook/dashboard updates) for landing the gRPC transport later.
- 05-configuration-reference.md: drop the fabricated exporter/otlp_grpc key
and the :4317 default from the sample config block and the options-summary
table. Move trace_pathfind, trace_txq, trace_validator, trace_amendment
into a new "Planned (not yet implemented)" table citing the phase that will
add each one. Keep the example config minimal so copy-paste does not produce
a silently-ignored stanza.
- 06-implementation-phases.md: reset Phase 4 Exit Criteria checkboxes from
[x] to [ ] (Phase 4 is not shipped at Phase-1a time). Rename "Phase 4a
Complete" to "Phase 4a Plan" and describe the work as future. Replace the
broken forward link to Phase4_taskList.md (introduced in the Phase 2 PR)
with a sentence pointing readers to where that spec will land. Renumber
the final section 6.12 to 6.11 so it sits directly after 6.10; section 6.11
("Effort Summary") was intentionally removed in earlier edits.
- Replace GetSpan() with direct context value check in Logs::format()
to avoid heap allocation (new DefaultSpan) on the no-span path
- Restore Phase 7 documentation accidentally deleted during merge
- Fix undefined $JAEGER variable → use $TEMPO in integration test
- Remove useless LCOV_EXCL markers around #ifdef block
- Fix indentation inconsistencies in Log.cpp injection block
- Remove incorrect url field from loki.yaml derivedFields
- Update stale code sample in Phase8_taskList.md to match implementation
- Correct "<10ns" performance claims to accurate ~15-20ns (no-span)
and ~50ns (active-span) measurements across all docs
- Replace Jaeger references with Tempo in TESTING.md (port 16686→3200)
- Improve error handling in check_log_correlation(): track files_scanned,
detect missing log files, fix silent grep error masking
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Fix quorum attribute to use actual validator quorum instead of proposer
count, add missing ConsensusState::Expired handling in haveConsensus()
span, move ConsensusSpanNames.h to xrpld/consensus/ to resolve
levelization cycle, remove unused constants, enrich proposal receive
span with sequence, and correct stale documentation references.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Update Phase4_taskList.md and 06-implementation-phases.md to reflect
completed implementation of all remaining Phase 4/4a tasks (4.2-4.6,
4a.5, 4a.6, 4a.8). Update exit criteria and summary tables.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Instrument the consensus subsystem with OpenTelemetry spans covering
the full round lifecycle: round start, establish phase, proposal send,
ledger close, position updates, consensus check, accept, validation
send, and mode changes.
Key design choices adapted from the original Phase 4 implementation
to the new SpanGuard factory pattern introduced in Phase 3:
- Add SpanGuard::hashSpan() for category-gated hash-derived trace IDs
(consensus round spans share trace_id across validators via ledger hash)
- Add SpanGuard::addEvent() overload with key-value attribute pairs
(used for dispute.resolve events during position updates)
- Add ConsensusSpanNames.h with compile-time span name constants
following the colocated *SpanNames.h pattern from Phase 3
- Add consensusTraceStrategy config option ("deterministic"/"attribute")
for cross-node trace correlation strategy selection
- Use SpanGuard::linkedSpan() for follows-from relationships between
consecutive rounds and cross-thread validation spans
- Use SpanGuard::captureContext() for thread-safe context propagation
from consensus thread to jtACCEPT worker thread
Spans produced: consensus.round, consensus.proposal.send,
consensus.ledger_close, consensus.establish, consensus.update_positions,
consensus.check, consensus.accept, consensus.accept.apply,
consensus.validation.send, consensus.mode_change
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Add trace_id = txHash[0:16] strategy so all nodes handling the same
transaction independently produce spans under the same trace_id,
combined with protobuf span_id propagation for parent-child ordering.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Replace remaining rippled/Ripple references with xrpld/XRPL in
data collection reference, implementation phases, and runbook docs.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Resolve merge conflicts taking phase 4 consensus span improvements,
fix bashate indentation in integration test script, and apply rename
script to Phase5 integration test docs.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Fix quorum attribute to use actual validator quorum instead of proposer
count, add missing ConsensusState::Expired handling in haveConsensus()
span, move ConsensusSpanNames.h to xrpld/consensus/ to resolve
levelization cycle, remove unused constants, enrich proposal receive
span with sequence, and correct stale documentation references.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Update Phase4_taskList.md and 06-implementation-phases.md to reflect
completed implementation of all remaining Phase 4/4a tasks (4.2-4.6,
4a.5, 4a.6, 4a.8). Update exit criteria and summary tables.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Integrate the existing StatsD metrics pipeline (beast::insight) into
the OpenTelemetry observability stack and add new trace spans for
ledger build/store/validate and peer proposal/validation receive.
Phase 5b — Ledger, peer, and transaction spans:
- Add ledger.build span with close time attributes in BuildLedger.cpp
- Add tx.apply span with tx_count/tx_failed in BuildLedger.cpp
- Add ledger.store and ledger.validate spans in LedgerMaster.cpp
- Add peer.proposal.receive span with trusted attribute in PeerImp.cpp
- Add peer.validation.receive span with ledger_hash, full, trusted
attributes in PeerImp.cpp
- Add ledger-operations and peer-network Grafana dashboards
Phase 6 — StatsD metrics integration:
- Add StatsD UDP receiver (port 8125) to OTel Collector
- Add 5 StatsD Grafana dashboards: node health, network traffic,
overlay traffic detail, ledger data sync, RPC pathfinding
- Add 09-data-collection-reference.md cataloging all metrics/spans
- Update existing dashboards with new span panels
- Expand telemetry runbook and integration test script
- Add codecov exclusions for telemetry modules
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Mark Tasks 5.3 (alert definitions) and 5.6 (training materials) as
"Deferred — post-MVP" in the implementation phases document to
accurately reflect current delivery scope. Add status column to the
Phase 5 task table.
Also fix stale reference to XRPL_TRACE_* macros in Phase 4a section —
the implementation uses SpanGuard factory methods.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
