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perf: expand gateway capacity and prevent receipt replay

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hectorzhao
2026-08-25 16:08:30 +08:00
parent 761c123b65
commit 9292352be1
48 changed files with 2001 additions and 144 deletions
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gateway/internal/metrics/metrics.go
+14
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@@ -39,6 +39,8 @@ var submitStageHistograms [5][2]durationHistogram
type Snapshot struct {
UpstreamDesired int
UpstreamConnected int
UpstreamWindowConfigured int
UpstreamWindowInFlight int
DownstreamConnected int
SubmitWorkerUp bool
SubmitWorkerConcurrency int
@@ -55,6 +57,14 @@ type Snapshot struct {
ResultQueueAvailable bool
ResultQueuePending int64
ResultQueueLag int64
CallbackBatchRequests int64
CallbackBatchEvents int64
CallbackBatchRetries int64
CallbackDeadLetters int64
ProtocolLogPublished int64
ProtocolLogSampled int64
ProtocolLogErrors int64
ProtocolLogQueueLength int64
}
type SnapshotFunc func(context.Context) Snapshot
@@ -121,6 +131,10 @@ func Handler(load SnapshotFunc) http.Handler {
writeDurationHistogram(response, "cmpp_gateway_submit_stage_duration_seconds", stage, &submitStageHistograms[index])
}
fmt.Fprintf(response, "# HELP cmpp_gateway_upstream_connections Desired and live supplier connections.\n# TYPE cmpp_gateway_upstream_connections gauge\ncmpp_gateway_upstream_connections{state=\"desired\"} %d\ncmpp_gateway_upstream_connections{state=\"connected\"} %d\n", snapshot.UpstreamDesired, snapshot.UpstreamConnected)
fmt.Fprintf(response, "# HELP cmpp_gateway_upstream_window_slots Configured and in-flight supplier window slots.\n# TYPE cmpp_gateway_upstream_window_slots gauge\ncmpp_gateway_upstream_window_slots{state=\"configured\"} %d\ncmpp_gateway_upstream_window_slots{state=\"in_flight\"} %d\n", snapshot.UpstreamWindowConfigured, snapshot.UpstreamWindowInFlight)
fmt.Fprintf(response, "# HELP cmpp_gateway_callback_batch_total Batch callback requests, events, retries and dead letters.\n# TYPE cmpp_gateway_callback_batch_total counter\ncmpp_gateway_callback_batch_total{result=\"requests\"} %d\ncmpp_gateway_callback_batch_total{result=\"events\"} %d\ncmpp_gateway_callback_batch_total{result=\"retries\"} %d\ncmpp_gateway_callback_batch_total{result=\"dead_letter\"} %d\n", snapshot.CallbackBatchRequests, snapshot.CallbackBatchEvents, snapshot.CallbackBatchRetries, snapshot.CallbackDeadLetters)
fmt.Fprintf(response, "# HELP cmpp_gateway_protocol_log_total Protocol log Stream outcomes.\n# TYPE cmpp_gateway_protocol_log_total counter\ncmpp_gateway_protocol_log_total{result=\"published\"} %d\ncmpp_gateway_protocol_log_total{result=\"sampled_out\"} %d\ncmpp_gateway_protocol_log_total{result=\"error\"} %d\n", snapshot.ProtocolLogPublished, snapshot.ProtocolLogSampled, snapshot.ProtocolLogErrors)
fmt.Fprintf(response, "# HELP cmpp_gateway_protocol_log_stream_length Current protocol log Stream length.\n# TYPE cmpp_gateway_protocol_log_stream_length gauge\ncmpp_gateway_protocol_log_stream_length %d\n", snapshot.ProtocolLogQueueLength)
fmt.Fprintf(response, "# HELP cmpp_gateway_downstream_connections Authenticated client connections.\n# TYPE cmpp_gateway_downstream_connections gauge\ncmpp_gateway_downstream_connections %d\n", snapshot.DownstreamConnected)
fmt.Fprintf(response, "# HELP cmpp_gateway_submit_worker_up Whether the submit worker was initialized.\n# TYPE cmpp_gateway_submit_worker_up gauge\ncmpp_gateway_submit_worker_up %d\n", boolNumber(snapshot.SubmitWorkerUp))
fmt.Fprintf(response, "# HELP cmpp_gateway_submit_worker_slots Configured and active bounded submit worker slots.\n# TYPE cmpp_gateway_submit_worker_slots gauge\ncmpp_gateway_submit_worker_slots{state=\"configured\"} %d\ncmpp_gateway_submit_worker_slots{state=\"in_flight\"} %d\n", snapshot.SubmitWorkerConcurrency, snapshot.SubmitWorkerInFlight)