Commit Graph

30 Commits

Author SHA1 Message Date
Pratik Mankawde
cb88a12883 Merge branch 'pratik/otel-phase10-workload-validation' into pratik/otel-sync-diagnostics
Nine conflicts, resolved as follows.

src/xrpld/app/ledger/detail/InboundLedger.cpp -- kept this branch's version.
phase10 sets the span's outcome/timeouts/peer_count attributes inline at each
exit; this branch replaced that with the idempotent finalizeAcquireSpan(), called
on all four exits (init, done, give-up, destructor). Taking phase10's blocks
would have set the outcome twice against a helper documented as not overwriting
what the real exit recorded. phase10's comment explains why peer_count must not
be read in a destructor; the helper solves that structurally by taking
std::optional<std::size_t> and being passed std::nullopt from there.

src/xrpld/telemetry/MetricsRegistry.cpp -- kept metric::ledgerEconomy over
phase10's "ledger_economy" literal. This branch added the naming check that
requires constants for converted families, so the literal would regress it. Took
phase10's comment cleanup.

src/xrpld/telemetry/MetricsRegistry.h -- kept registerRotationStateGauge(), which
only exists here, and took phase10's removal of the stale task-number comment.

validate_telemetry.py -- combined both. phase10 replaced serial metric polling
with a concurrent fan-out on one shared deadline, because 58 metrics x 45 s of
additive timeout overran the CI budget; that is kept. Its target list filters on
SKIPPED_METRIC_GROUPS rather than the two literals it hardcoded, so the
sync_diagnostics group stays owned by assert_sync_diagnostics_metrics() instead
of being polled and reported twice. Both SYNC_DIAGNOSTICS_GROUP and
METRIC_POLL_CONCURRENCY are needed and both are kept.

check_otel_naming.py -- both sides extend the rule docstring. Took phase10's
fuller Rule E text (doc discovery, allow-dotted markers) and re-appended rules
I/J/K/L, which exist only here.

expected_metrics.json -- the two sides add disjoint sibling groups, so both are
kept: sync_diagnostics alongside node_health_gauges, overlay_reduce_relay,
overlay_overflow, validation_lifetime_counters and not_asserted. Both dashboard
uids are kept, giving 16 asserted uids against 16 dashboards on disk.

expected_spans.json -- kept this branch's span set, a superset that adds the
acquire phase spans, ledger.serve, txset.acquire and peer.dial, and expands
ledger.acquire's required attributes. Took phase10's description, which documents
what the totals mean, and its note on how the RPC wildcard span is created.
total_span_types and total_unique_attributes are recomputed for the union: 48 and
74, since each side's figure counted only its own spans.

Docs: took phase10's more accurate wording on what the dashboard check actually
covers, and corrected the dashboard count from 15 to 16 where the merge made it
stale.

Verified: no conflict markers remain, both JSON contracts parse, both Python
files compile, asserted dashboard uids match the dashboards on disk exactly, and
the OTel naming check reports all layers consistent.
2026-08-17 19:24:12 +01:00
Pratik Mankawde
d059f21bf3 fix(telemetry): address review findings in the workload validation harness
Fixes the review findings on this PR that belong to files it owns, plus
several defects found while verifying those fixes. Findings in files owned
by upstream branches are routed there and left untouched here.

Correctness:
- tx_submitter: advance the account sequence only on results that actually
  consume one (tes*, tec*, terQUEUED). tem*/tef*/tel* never reach the
  ledger, so advancing left a permanent gap that every later submit from
  that account inherited. Add a re-fetch hatch so a repeated non-consuming
  failure cannot livelock on the same sequence, and gate the account check
  on funded-ness rather than list length.
- validate_telemetry: filter spans by name before collecting attributes, so
  a per-span attribute contract can no longer be satisfied by a sibling
  span; require exact name equality for non-wildcard children and glob
  matching for wildcards; bounds-check every returned series instead of
  only the first.
- collect_system_metrics: select xrpld by argv[0] rather than a substring
  match on the whole command line, which averaged in unrelated processes
  and reported their RSS as xrpld's. Count genuine 0.0 CPU readings, use a
  clamped nearest-rank p99 index, and record RPC latency only on success.
- benchmark: return each verdict through a named variable instead of a
  command substitution, so the pass/fail counters survive and the exit gate
  can fire. Scale before dividing in the percentage math, which truncated a
  1.26% impact to 1.00% and cleared a 1% threshold.
- compare_to_baseline: fall back to the absolute bound when the baseline is
  not positive, so a 0 -> 500 ms jump is no longer "within bounds".
- rpc_load_generator: bound each connection to one in-flight recv(), drain
  in-flight requests before closing, use a nearest-rank percentile, and
  report delivery shortfall so an under-delivered run cannot pass with a 0%
  error rate.

Fail loudly instead of silently:
- run-full-validation: treat a consensus timeout and a missing validated
  ledger as fatal infrastructure errors, and fold the orchestrator and
  benchmark exit codes into the final status. A degraded cluster previously
  ran a full validation pass and reported misleading downstream failures.
- collect_system_metrics: warn per empty measurement source, emit
  metrics_complete, and exit non-zero instead of substituting zeros that
  pass every threshold. Require GNU date with %N rather than falling back
  to a per-sample python3 fork that costs more than the threshold it is
  measured against.
- benchmark: distinguish "could not measure" from "exceeded thresholds",
  install a cleanup trap so a failure cannot leak nodes and ports, and
  report an unusable baseline as inconclusive.
- workload_orchestrator: bound subprocess communicate() and fail the exit
  gate on per-phase errors.

Also pins the workload compose images to the versions the sibling stack
already uses, hash-pins the Python dependencies, restricts the validator
config template to loopback, corrects the dashboard and metric counts in
the reference docs, drops a span from the regression gate that cannot fire
under a WebSocket-only workload, and narrows the teardown pkill pattern so
it no longer matches processes that merely mention the work directory.

Verified with a full harness run against a local five-node cluster:
158 of 158 checks passed with no regressions detected.
2026-08-14 19:59:19 +01:00
Pratik Mankawde
d3ff79121d fix(telemetry): assert histogram metrics by their exported names
The Telemetry Validation workflow failed with three "0 series" checks:
rpc_method_us, job_queued_us and job_running_us. All three are Histograms,
and the Prometheus exporter emits a histogram only as the
_bucket/_count/_sum triple -- the bare instrument name is never a series,
so validate_metrics() could never match it.

Evidence from the failing run (31804450127): its own metric-name dump
lists rpc_method_us_bucket/_count/_sum and no bare rpc_method_us, while
the sibling counters recorded in the same function bodies passed with 100
and 67 series. capture_timings.py, which queries job_queued_us_bucket and
job_running_us_bucket, returned real values for the acceptLedger job type
in that same run. Every one of the 10 histograms present exposes the full
triple, so all three suffixes are safe to assert.

Name them the way the exporter does, matching what the spanmetrics group
above already does for span_duration_milliseconds and what
regression-metrics.json and the job-queue dashboard already query. The
metrics stay in their asserted groups because they are genuinely
unconditional, so `not_asserted` would be wrong.
2026-08-14 15:23:20 +01:00
Pratik Mankawde
22e440aee1 fix(telemetry): correct the phase-10 validation harness against the code
The harness manifests asserted things the code cannot produce and missed most
of what it does. Two assertions were failing every run, and the metric set
covered 16 of the ~41 emitted names.

expected_spans.json: rpc.process was required with rpc.ws_message as its
parent, but it is created only in ServerHandler::processRequest() on the HTTP
path, so a WebSocket-only workload never produces it -- it is now optional and
parented to rpc.http_request, and the rpc.process -> rpc.command.* edge is
skipped with the real reason instead of a coroutine-context-loss diagnosis that
was never the cause. Adds the missing rpc.ws_upgrade span, corrects four
parents (consensus.mode_change, pathfind.request, and update_positions/check,
which are children of consensus.establish rather than consensus.round), and
demotes conditionally-set attributes out of required_attributes so a healthy
run stops failing. Counts recomputed from the file: 41 span types, 62 unique
required attributes.

expected_metrics.json: 16 -> 52 asserted entries across the job-queue, RPC
method, reduce-relay, overflow and validation families, plus the fifteenth
dashboard uid. Metrics the harness workload cannot exercise -- erroring RPC,
ledger-mismatch, TxQ overflow, and the lazily-created getobject_* instruments
-- are listed in a not_asserted group the validator skips, rather than as
assertions that would fail on a healthy node.

The workflow's push trigger listed two globs matching nothing
(include/xrpl/basics/Telemetry*.h, src/xrpld/app/misc/Telemetry*), so no C++
telemetry change ever triggered validation. Replaced with the paths the code
actually lives in, including src/libxrpl/beast/insight/** for the insight
export path the harness depends on. The four inert workflow_dispatch inputs are
now labelled UNUSED rather than looking like working knobs.

Docs: the workload README described a StatsD dirty-flag mechanism under a
member name that does not exist, on a code path the harness never uses -- it
sets [insight] server=otel, so gauges export through an observable-gauge
callback every cycle. Adds the missing txq-burst phase, reconciles three
different dashboard counts, and drops "posts summary to PR", which the workflow
has no permission to do. The runbook's phase-10 section loses the last
sampling_ratio reference (not a config key), gains a Regression Gate and CI
subsection covering the gate that can fail CI, and its compose-logs command now
names the workload compose file. cmake --preset default is left for a separate
change: no CMakePresets.json is tracked, so it is wrong everywhere it appears.

Also drops the dead exporter=otlp_http key the harness wrote into every node
config, and stops capture_timings.py defaulting --profile to a profile that
does not exist.
2026-08-14 12:34:33 +01:00
Pratik Mankawde
de6b20f44c feat(telemetry): render peer disconnect reason and rate on Peer Quality
Add two Peer Quality panels reading peer_disconnect_total: Peer Disconnect
Rate, the per-second teardown rate per node, and Peer Disconnects By Reason
& Direction, the per-interval increase split by cause and by which side
opened the connection. Both sit in the existing Disconnects & Connection Mix
row beside Resource Disconnects, which counts only the resource-charge
subset and carries no reason label.

The Ledger Sync Health board already shows the same split as a window
total, so it says how much of each reason but not when. These give the
time-shaped view, letting a reason spike be lined up against a stall.

Add disconnect_reason and disconnect_direction template variables for the
two new label dimensions and wire both queries to them, so the panels
filter on every dimension their series carry.

Update the 09 reference panel column and the _a7_note panel list to name
the panels that now render this counter.
2026-08-12 17:40:16 +01:00
Pratik Mankawde
0ddb4e2686 Merge branch 'pratik/otel-phase10-workload-validation' into pratik/otel-sync-diagnostics
Brings in the phase-10 revert of the nodestore read-latency histogram plus the
nudb_bytes -> stored_object_bytes rename.

Conflicts in MetricsRegistry.{h,cpp} resolved keeping both intents:

- MetricsRegistry.cpp: dropped everything that existed only to serve the
  reverted nodestore_read_us histogram -- the addSubMillisecondHistogramView()
  helper, its call site, the kSubMillisecondBoundaries array and the
  NodeStoreMetricNames.h include. Kept every view this branch registers
  (consensus round duration, sweep_malloc_trim_us, dns_resolve_latency_ms,
  overlay_dial_latency_ms) and the shared addHistogramView() base helper.
  Took the rename at the storage_detail observe() call site.

- MetricsRegistry.h: took phase-10's move of the four nodestore_state observe
  helpers and their ObserveFn sink from private to public, while keeping this
  branch's enriched Doxygen on observeNodeStoreTotals().

Also corrected the registered-view count in the 09 reference doc: neither side's
arithmetic survives the merge, since this branch adds four views phase-10 never
saw and the revert removes one. Ten views are registered now, not six or seven.
2026-07-28 16:53:13 +01:00
Pratik Mankawde
356e0af1fd Merge branch 'pratik/otel-phase9-metric-gap-fill' into pratik/otel-phase10-workload-validation
# Conflicts:
#	OpenTelemetryPlan/06-implementation-phases.md
#	OpenTelemetryPlan/09-data-collection-reference.md
#	docker/telemetry/grafana/dashboards/node-health.json
2026-07-28 16:32:29 +01:00
Pratik Mankawde
c4e434d520 refactor(telemetry): retire the duplicate nodestore_latency gauge
nodestore_latency published six values that nodestore_state already
publishes from the same Database accessors, so the two gauges were
duplicate readings of the same atomics:

  write_count       -> node_writes             getStoreCount()
  read_count        -> node_reads_total        getFetchTotalCount()
  write_duration_us -> node_writes_duration_us getStoreDurationUs()
  read_duration_us  -> node_reads_duration_us  getFetchDurationUs()
  write_mean_us     -> write_mean_us           store duration / count
  read_mean_us      -> read_mean_us            fetch duration / count

nodestore_state is kept because its means go through scaledMean(), which
saturates at INT64_MAX instead of wrapping and omits a mean when the
denominator is zero rather than reporting a misleading 0 us.

Removes registerNodeStoreLatencyGauge, its instrument member, the
metric::nodestoreLatency constant and the lval::nodestore_latency label
namespace. The gauge-over-histogram rationale and the "p99 is not
obtainable" consequence are folded into observeNodeStoreTotals' docs.

Retargets the gauge-contract test onto nodestore_state rather than
deleting it: the scaledMean arithmetic is covered by the static_asserts
in tests/libxrpl/telemetry/MetricsRegistry.cpp, but nothing else asserts
that these named series multiplex onto one instrument keyed by `metric`.
The test now calls the production scaledMean instead of a copy of the
division, and its sub-microsecond case asserts scaledMean's actual
behaviour (a genuine mean of 0 on a zero numerator with a non-zero
count), which differs from the retired gauge's extra numerator guard.

Rewrites both ledger-sync-health copies' panel 38/39 queries and drops
the obsolete claim that the write numerator was never written: all three
concrete store paths call recordStoreDuration, so write_mean_us is live
on an ordinary node. The same stale [import_db] caveat is removed from
the runbook, the 09 reference row and the workload validator's note.
2026-07-28 11:52:44 +01:00
Pratik Mankawde
8633df7a3e feat(telemetry): expose the sweep-trim and rotation costs (WP-B5)
Two suspects from the 3.3.0 slowdown investigation had no signal. Both were
already computing the numbers and throwing them away, so this exposes them
rather than adding measurement.

Per-sweep heap trim. The trim runs after every cache sweep, and its cost
scales with resident heap, so it is the leading explanation for a node with
a populated database syncing slower than a fresh one. The report already
carried duration, fault deltas and reclaimed pages, but the whole
measurement sat behind a debug-journal check, so an ordinary node measured
nothing, and the call site discarded the result. The measurement now always
runs and only the log line stays gated. Records trim duration, minor faults
and reclaimed kilobytes. Measured cost of the always-on path is about six
microseconds per sweep against a trim costing milliseconds, at a cadence of
ten to a hundred and twenty seconds.

Honest limit, stated in the runbook: the fault delta spans only the trim
call, so it shows the trim itself faulting but not the faults that follow as
caches refill. The duration is the signal to correlate against sweep-job
queueing.

Rotation writes. Rotation copies archive-served reads forward and re-stores
nodes missing from both backends, both of which compete with sync I/O and
only happen on a populated online_delete database. The copy-forward count
existed but was reset by the rotation's own log line, so a metric reading it
would drop to zero on every swap; a never-reset total sits beside it now.
The re-store count was not measured at all. Rotation duration is
deliberately not recorded: the health throttle sleeps at eight points inside
the sequence and dominates exactly when the node is unhealthy, so the number
would conflate work with waiting.

Nothing added for the other two suspects. Get-object serving is already
covered by the handler label, the lookup histogram and the deferred and
saturation gauges; peer churn by the disconnect-reason counter.

Also replaces nine per-file cspell ignores with one ignoreRegExpList entry
for the telemetry macro names, and picks up the levelization baseline for the
consensus span-name test.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-27 16:39:09 +01:00
Pratik Mankawde
371f10934e fix(telemetry): correct five signals that would have misled an operator
Found by reviewing what each metric actually measures, with attention to the
derived and bucketed ones. All five could report healthy while the node was
not, or the reverse.

- The nodestore latency panel took rate() of a mean. The gauge already
  divides duration by count in code, so rating it produced a figure with no
  unit, and Prometheus discards a gauge's decreases, so a heavy back-fill
  read as roughly zero microseconds per operation. The cumulative duration
  totals are now exported alongside the means, and the panel divides the
  rate of the total by the rate of the count, which is the latency over the
  panel's own window rather than a since-boot average that flattens with
  uptime.
- The DNS-resolve and outbound-dial histograms had no explicit buckets, so
  they inherited a ladder that stops at ten seconds while the dial timer is
  fifteen. Every timed-out dial fell in the overflow bucket and p95 read
  exactly ten seconds however bad it got. Both now have a ladder reaching
  thirty seconds with fifteen on its own boundary, so a timeout is
  distinguishable from merely slow.
- The missing-node counts only cleared when a tree completed, so a
  timed-out or failed acquire left its last count latched. Since the gauge
  reports the maximum across everything still in the collection, and
  eviction waits on a grace period plus the sweep interval, a finished node
  reported as stuck for minutes. That inverts the one signal that separates
  stuck from slow. Cleared unconditionally on the terminal path instead.
- A disabled quorum published a sentinel so large that, on a timeseries
  axis shared with the trusted-key count, it flattened the key line to the
  baseline and hid the outage it was meant to mark. The series is now
  omitted and a quorum_disabled flag carries the state.
- Two panel descriptions claimed a one-second export cycle. The reader is
  configured for ten.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-27 14:27:28 +01:00
Pratik Mankawde
c5655cd42d Merge branch 'pratik/otel-phase10-workload-validation' into pratik/otel-sync-diagnostics
Phase-10 independently instrumented the peer object-fetch path while this
branch instrumented fresh-node sync, so the two overlapped in three places.
Resolved by keeping each side's stronger implementation rather than shipping
both.

Per-job-type waiting/running/deferred existed twice. Phase-10's version
survives: it publishes per-type gauges from JobQueue::collect(), which
snapshots under the queue lock and publishes after releasing it, a
deliberate lock-order fix against the collector's own lock. This branch's
jobq_backlog gauge and the JobQueue::getJobTypeCounts() accessor that fed it
are removed, along with their panels, assertions and reference rows.
jobq_saturation stays: it reports the whole worker pool, which phase-10 has
no equivalent for.

The histogram view helper also existed twice with identical bodies under two
names; one survives, and the microsecond ladder is now the named array
rather than boundaries repeated inline. The job_type label was declared
twice, once as a file-local constant invisible to the naming check; both it
and handler now come from the constants header.

Two things phase-10 adds are complementary, not duplicates, and are kept as
they are: the handler label, which separates the two request kinds that both
report as the same job type, and getobject_rejected_total, which counts
malformed requests where this branch's serve_refused_total counts requests
this node declined to serve.

Also fixes two naming-check failures that pre-date this merge on phase-10.
The check derived label keys only from namespaced constants, so it could not
see the per-subsystem headers' flat k-prefixed style and rejected dashboards
querying labels the code really emits. It now reads both styles, with the
enforcement rules unchanged.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-27 13:42:03 +01:00
Pratik Mankawde
41b818b55b feat(telemetry): join a ledger's spans into one trace, add round histogram (WP-B3)
A slow fresh-sync ledger produced spans scattered across threads with no
way to relate them. They now share a trace id derived from the ledger's own
hash, the one value every participating site already holds, so nothing new
is plumbed across threads. This is the pattern the transaction pipeline
already uses for its tx id.

Joined: ledger.validate, ledger.store, and a new
consensus.validation.accept recorded when a trusted validation arrives. In
Tempo, searching one ledger hash returns them together, so an operator can
tell whether the ledger was slow to arrive, slow to be accepted, or slow to
be stored. They are siblings rather than a chain because the accept gate is
entered from three different threads, so no fixed parent order exists.

consensus.validation.accept also records why an arriving validation did or
did not advance the gate, which makes "validations arrive but are all
rejected" visible for the first time.

consensus_round_duration_ms turns the existing round-time span attribute
into a histogram, so a fleet trend needs a metric query rather than raw
trace inspection. An explicit bucket view is required, not optional: the
SDK default tops out at ten seconds while consensus abandons a round at two
minutes, so slow rounds would all fall in one bucket and every quantile
would read exactly ten seconds. Cost is one record per round.

Record layer: the histogram is native and needs no collector change. The
two new bounded attributes are added as span-metric dimensions to both
collector configs. The ledger hash stays out of them, since a per-ledger
dimension mints a series per ledger; it is indexed in Tempo as the join key.

The ledger.acquire span is not joined yet, because that file was being
changed concurrently. It is registered as an optional member of the join
group so nothing fails, and switching it is a one-line follow-up.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-25 20:19:25 +01:00
Pratik Mankawde
92729bacce feat(telemetry): render, assert and document the quorum signals (WP-A5)
The quorum and publish gauges were emitted but never surfaced: no panel, no
harness assertion, no reference entry. Completes those layers.

- Four panels: trusted validations against the quorum target on one axis so
  a tally climbing toward quorum is visually distinct from one flat below
  it; publish lag; pre-accept shortfall rate; and time to first validated
  ledger.
- Both signals are asserted by the workload validator. The shortfall
  counter does fire on a healthy cluster, because this node validates and
  then immediately re-enters the accept gate before its peers' validations
  arrive, so the first evaluation of every round tallies short. The panel
  and note say so, and give the fault signature instead: the shortfall rate
  outpacing the ledger-close rate while the tally stays flat and nothing
  ever reaches first-validated.
- The quorum target is deliberately drawn as its own line rather than as a
  headroom stat, so the disabled-quorum sentinel reads as an unreachable
  target instead of an unreadable negative number.

Also removes three reference rows that were appended twice when two agents
each documented the same back-fill signals.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-25 17:22:28 +01:00
Pratik Mankawde
827525c86b feat(telemetry): wire A5-A7 and B1 signals through the pipeline
Registers the new gauges, renders them, asserts them and documents them, so
each signal reaches an operator rather than stopping at the emit site:

- MetricsRegistry: gauge registration for ledger_quorum_publish,
  nodestore_latency, peer_ledger_supply, peerfinder_slot_census and
  amendment_block, each guarded by the detached-callbacks check and
  tolerant of services that are not ready yet.
- Ledger Sync Health dashboard: panels for the new signals, filtered by
  the node template variable like every other board.
- Workload validation: the new series are asserted, so a signal that
  regresses to absent fails CI. Signals the local cluster structurally
  cannot produce, such as a replay fallback or an amendment block, are
  noted rather than asserted, which would fail red on a healthy run.
- Reference, runbook and glossary entries, including the diagnosis order
  for a node that has peers and validators but never validates.
- Regenerated levelization baseline: three new one-way edges from the
  telemetry and test modules, no new cycles.

Also drops an unused cstddef include from the macro tests, which the
include checker rejects.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-25 16:15:26 +01:00
Pratik Mankawde
4115617eb9 feat(telemetry): add job-queue occupancy and saturation gauges (WP-A4)
Sync-critical job types run at very low concurrency limits (ledgerRequest
and ledgerData allow 3 each), so a node can stall simply because those
jobs are held back behind other work. Nothing exposed that until now:
the existing job metrics are rates and quantiles of jobs that already
moved, or a single queue-wide depth.

- jobq_backlog{metric,job_type}: instantaneous waiting, running and
  deferred counts per job type. Deferred is the starvation signal and had
  no exposure anywhere; it is set when a type is at its concurrency limit.
- jobq_saturation{metric}: running tasks, worker-thread count and total
  waiting, so a slowdown spanning several subsystems can be attributed to
  worker-pool exhaustion instead of being diagnosed once per victim.

Both read through two new const accessors on JobQueue that take the
existing mutex once and copy integers, so a single reading is internally
consistent and no per-job cost is added. The job_type label reuses the
same JobTypes name helper the existing job counters use, so the two label
sets join.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-25 13:46:03 +01:00
Pratik Mankawde
3e2a1ea958 feat(telemetry): add ledger-acquire and SHAMap fetch diagnostics (WP-A3)
Signals that separate a sync that is merely slow from one that will never
finish:

- sync_acquire{missing_state_nodes_max, missing_tx_nodes_max, in_flight,
  received_data_depth}: how many SHAMap nodes each in-flight acquire is
  still waiting for. getMissingNodes already computed this and the callers
  discarded it after a trace log. A count that stays flat means the
  acquire is wedged; a shrinking count means it is progressing. Recorded
  once per sweep, never inside the per-node walk, and reset when a tree
  completes so a finished acquire does not read as stuck forever.
- shamap_cache_hit_rate{treenode}: hit rate of the in-memory tree-node
  cache, which sits above the node store, so it is distinct from the
  existing NuDB ratio. A cold cache on a fresh node sends every traversal
  step to disk.
- sync_acquire_no_progress_total: timer ticks where an acquire made no
  progress, previously only logged.
- sync_addnode_total{good,duplicate,invalid}: whether arriving nodes are
  useful, duplicated or rejected, so wasted fetch work is visible.
- sync_acquire_source_total{local,network}: whether a ledger was served
  from the local store or had to be fetched.

Adds getBad()/getDuplicate() to SHAMapAddNode and an acquireProgress()
accessor on InboundLedgers so the xrpld gauge can read these without
libxrpl depending on telemetry.

ledger_seq is deliberately not a metric label: it is unbounded. Per-ledger
identity stays on the ledger.acquire span; the metrics expose bounded
aggregates instead.

The full-below cache hit rate is not exported: KeyCache updates different
counters than getHitRate() reads, so it would always report zero. That
libxrpl bug is documented rather than papered over.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-25 10:18:08 +01:00
Pratik Mankawde
7c7509d01f feat(telemetry): add sync-state diagnostics (WP-A2)
Five signals that explain why a node is not advancing toward full, none of
which were observable before:

- state_changes_total now carries {from,to} mode labels, emitted at
  setMode using the existing strOperatingMode helper. A bare count could
  not distinguish a healthy climb from a node flapping between tracking
  and connected. Removes the now-unused incrementStateChanges wrapper.
- sync_state{initial_full_duration_us}: time to first reach full, which
  StateAccounting already computed but exposed only in server_info.
- sync_state{network_ledger_gate}: whether the node is still refusing to
  build ledgers because it has no network ledger.
- sync_state{server_stall_seconds} and server_stall_events_total: how
  long the main thread has been unresponsive. LoadManager computed this
  and only logged it, so a stall was invisible until the fatal threshold.
  The episode rule is a pure function so it can be tested without adding
  a test-only mutator to LoadManager.
- sync_state{ledgers_behind}: how far our validated sequence trails the
  best sequence any peer advertises, read from already-cached peer ranges
  so no extra network traffic is added.

Also fixes the naming checker: it derived only the first label of a
multi-label instrument, so a dashboard querying the second label was
wrongly rejected.

Note: the clang-tidy hook cannot run in this worktree (no build
directory); the remaining pre-commit hooks, the naming check, dashboard
schema and harness syntax all pass.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-25 09:02:03 +01:00
Pratik Mankawde
188de0a5f3 feat(telemetry): add pre-quorum bootstrap sync diagnostics (WP-A1)
A freshly started node most often stalls before it ever peers or reaches
quorum, and that whole chain had no telemetry. Adds the six signals that
make it observable:

- dns_resolve_total / dns_resolve_latency_ms: configured-peer hostname
  resolution, emitted from OverlayImpl so libxrpl stays independent.
- overlay_connect_total / overlay_dial_latency_ms: outbound dial outcome
  by terminal reason, plus dial duration.
- handshake_negotiation_fail_total: protocol and network-id negotiation
  rejections, labelled by reason, so a misconfigured network is no longer
  indistinguishable from unreachable peers.
- unl_fetch_total and the unl_quorum gauge: validator-list fetch outcome
  per site and trusted key count against the required quorum. Without
  these a bad validators.txt leaves the node syncing forever with no
  signal.
- clock_close_offset_seconds: network close-time offset, which server_info
  hides below 60s but which stalls consensus participation.

Panels land in the Bootstrap row of the Ledger Sync Health dashboard, the
metrics are asserted by the workload validator, and both the reference and
the runbook flow describe them.

Levelization baseline regenerated: overlay now includes MetricMacros.h, so
the overlay/telemetry pair is reported one-way instead of bidirectional.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-25 07:53:20 +01:00
Pratik Mankawde
96914b9f40 feat(telemetry): scaffold fresh-node sync diagnostics (WP-A0)
Adds the anchors the sync-diagnostics signals attach to, with no signals
emitted yet:

- New "Ledger Sync Health" dashboard (uid ledger-sync-health) with the
  standard template-variable block copied from an existing board, plus
  empty "Bootstrap (Domain 0)" and "Sync pipeline" rows.
- Signal index section in the data-collection reference, an operator-flow
  stub in the telemetry runbook, and a glossary anchor.
- A sync_diagnostics group in expected_metrics.json and a matching
  assertion helper in validate_telemetry.py so CI fails when a signal
  regresses to absent.

Also registers the new dashboard uid with the harness so the board is
covered by validation.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-24 21:06:05 +01:00
Pratik Mankawde
1f98f2c46a test(telemetry): add rpc_in_flight_requests to phase10 expected_metrics harness inventory 2026-07-21 20:35:12 +01:00
Pratik Mankawde
829cad81af docs(telemetry): update metric names across docs, tests, alert rules, and plan docs
Strip xrpld_ prefix, lowercase beast::insight names, and replace
traces_span_metrics_ with span_ in all remaining tracked files:
alert rules, integration tests, workload validation, TESTING.md,
OpenTelemetryPlan docs, code comments, and config templates.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-07-08 18:01:53 +01:00
Pratik Mankawde
dbd2c7ad1b refactor(telemetry): update phase-10 refs to bare dashboard uids
Point the workload validation uid list and implementation-phases doc at
the renamed bare dashboard uids.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-04 02:50:27 +01:00
Pratik Mankawde
f6cbc8d4e7 fix(telemetry): drop deleted RPC OTel dashboard uid from workload validation
The separate xrpld-rpc-perf-otel dashboard was merged into xrpld-rpc-perf,
so the validation harness must no longer expect it to exist.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-03 22:33:37 +01:00
Pratik Mankawde
fd1c8c6060 fix(telemetry): resolve Phase 10 validation failures surfaced by first full CI run
The print-env CI fix let the Telemetry Stack Validation job build and run the
workload harness end-to-end for the first time. It reported 129/136 checks
passing; this commit fixes the 7 real failures plus a latent regression-gate bug.

Validation-suite fixes (verified against the CI run's actual emission + live node):
- expected_metrics.json: the beast::insight job-depth gauge is `xrpld_jobq_job_count`,
  not `xrpld_job_count` (the latter is a Phase 9 OTel counter). Reverted the prior
  rename. Removed the statsd_histograms block (`xrpld_rpc_time`/`xrpld_rpc_size`):
  these RPC timers do not emit under the WS workload (0 series in CI).
- expected_spans.json: `tx_status` is only set on suppressed/known-bad receives, so
  it is no longer a required attribute of every `tx.receive`. Marked `pathfind.compute`
  and `pathfind.discover` optional and the `pathfind.request -> pathfind.compute`
  hierarchy as skip — the self-to-self XRP probe returns before computing paths in a
  fresh cluster with no liquidity, so only `pathfind.request` fires.

Regression-gate bug (telemetry-validation.yml "Print regression summary"):
- `jq -e` exits non-zero when its filter result is boolean false — the normal case
  for a populated (non-placeholder) baseline — which was misreported as
  "Failed to parse baseline JSON" and failed the job. Dropped `-e` (kept `-r`) so a
  non-zero exit genuinely means malformed JSON.

The optional-span handling and regression comparison both worked correctly in the
CI run (txq.* / pathfind.update_all skipped-when-absent, 0 regressions detected).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-05 19:26:30 +01:00
Pratik Mankawde
cb9fce6890 fix(telemetry): align Phase 10 workload harness with current OTel recording surface + fix CI
The Phase 10 validation harness had drifted from the code's recording surface
and the telemetry-validation CI job was failing before it could build.

CI fix (telemetry-validation.yml):
- Replace nonexistent local action ./.github/actions/print-env with the remote
  XRPLF/actions/print-build-env (the build-xrpld job failed in 56s on this).
- Sync prepare-runner and upload-artifact action SHAs to the canonical workflow.

Recording-surface reconciliation (docker/telemetry/workload/):
- Migrate span attributes from dotted xrpl.<domain>.<field> to the bare/underscore
  form introduced by the 2026-05-13 span-attr naming redesign (tx_hash, peer_id,
  ledger_seq, consensus_mode, consensus_round, full_validation, quorum, ...).
  Dotted xrpl.ledger.hash is retained only on peer.validation.receive (shared
  constant), while consensus.validation.send uses bare ledger_hash.
- Fix attribute placement: tx.apply carries tx_count/tx_failed (not ledger_seq);
  ledger.build carries ledger_seq/close_* (not tx_count/tx_failed).
- Replace the phantom rpc.request span with the real WS root rpc.ws_message; drop
  the never-emitted duration_ms; rebuild the parent-child map accordingly.
- Add the new spans the code emits: apply-pipeline stage spans
  (tx.preflight/preclaim/transactor with stage/tx_type/ter_result), txq.*,
  consensus sub-spans (round/establish/update_positions/check/phase.open),
  ledger.acquire, grpc.*, pathfind.*. Conditional spans are marked optional so
  they are skipped (not failed) when the workload does not exercise them.
- validate_telemetry.py: service.name and Loki job label rippled -> xrpld; fix
  PARITY_SPAN_ATTRS (rename the 4 real attrs, drop the 3 that are metrics not span
  attrs); add optional-span handling that skips missing optional spans while still
  validating attributes when present.
- expected_metrics.json: rippled_ -> xrpld_ on all beast::insight/overlay metrics,
  xrpld_job_count, the 15 on-disk xrpld-* dashboard UIDs, and the real bare
  spanmetrics dimension labels.
- regression-metrics.json + baseline-timings.json: rpc.request -> rpc.ws_message.

Metrics pipeline fix:
- Switch node [insight] config from server=statsd/prefix=rippled to server=otel +
  /v1/metrics endpoint + prefix=xrpld across run-full-validation.sh,
  xrpld-validator.cfg.template, benchmark.sh and the workload compose. The
  collector has no StatsD receiver, so system metrics only reach Prometheus over
  OTLP.

Synthetic load for new spans:
- Add ripple_path_find to the RPC load generator (drives pathfind.* spans).
- Add a high-TPS txq-burst workload phase to force fee escalation (drives txq.*).

All facts verified against the *SpanNames.h headers and a live xrpld node +
collector (Tempo service.name=xrpld, tx.preflight attrs [stage,ter_result,tx_type],
279 xrpld_ Prometheus metrics and zero rippled_).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-05 17:08:58 +01:00
Pratik Mankawde
592e546f82 fix(telemetry): align Phase 10 workload configs with xrpld_ metric prefix
Phase 10's workload validation configs (expected_metrics.json,
regression-metrics.json, validate_telemetry.py) queried the
MetricsRegistry metrics under the rippled_ prefix, but MetricsRegistry
emits them as xrpld_ (see MetricsRegistry.cpp). On a live run the
workload validator reported every MetricsRegistry metric as missing,
masking genuine regressions.

Rename the following to xrpld_ across the workload validator,
expected-metrics manifest, and regression-metrics template:

- nodestore_state, cache_metrics, txq_metrics, load_factor_metrics,
  object_count
- rpc_method_started_total / _finished_total / _errored_total /
  _duration_us
- job_queued_total / _started_total / _finished_total /
  _queued_duration_us_bucket / _running_duration_us_bucket
- peer_quality, server_info, validator_health, ledger_economy,
  db_metrics, complete_ledgers, build_info, state_tracking,
  storage_detail
- ledgers_closed_total, validations_sent_total,
  validations_checked_total, state_changes_total
- validation_agreement, validation_agreements_total,
  validation_missed_total

Mirrors the phase-9 fix in commit 5601615952.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-13 15:01:13 +01:00
Pratik Mankawde
ff1502f939 feat(telemetry): add workload orchestrator with phased load profiles
Add a profile-driven workload orchestrator that executes sequential load
phases with configurable RPC rates and TX throughput. Three profiles:
full-validation (6 phases covering all 18 dashboards), quick-smoke (CI),
and stress (benchmarking). Fix 10 validation failures: correct Phase 9
metric prefixes, relax peer latency bounds for localhost clusters, and
allow sub-microsecond span durations.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-31 22:32:02 +01:00
Pratik Mankawde
e63ca4c495 fix(telemetry): fix dashboard UID and add parity attributes to expected_spans
- Remove duplicate 'system-node-health' UID from expected_metrics.json
  (already covered by 'rippled-system-node-health')
- Add parity span attributes to expected_spans.json: node health on
  rpc.command.*, validation hash/full on consensus.validation.send,
  quorum/proposers on consensus.accept, validation hash/full on
  peer.validation.receive

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-31 22:32:02 +01:00
Pratik Mankawde
711ae43174 feat(telemetry): add external dashboard parity validation checks (Task 10.8)
Add ~28 validation checks for external dashboard parity:
- 8 span attribute checks (server_info, tx.receive, consensus, peer spans)
- 13 metric existence checks (validation agreement, validator health,
  peer quality, ledger economy, state tracking, counters, storage)
- 3 dashboard load checks (validator-health, peer-quality, system-node-health)
- 4 value sanity checks (agreement %, UNL expiry, latency, state value)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-31 22:32:02 +01:00
Pratik Mankawde
5de8c520d1 Phase 10: Workload validation - synthetic load generation and telemetry checks
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-31 22:32:02 +01:00