Vihren Atlas

matching_engine.go ×5

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unlabeled · c_9cd77aacd507

166 tests · 2916 LOC · 143 files · introduces 0 tests · 18 LOC · 1 file

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Code
5 ranges18 lines · 1 files
Tests
0 tests

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446 ranges2916 lines · 143 files · Browse complete extent
All tests (intent)
166 testsBrowse complete intent

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1 file ranked by introduced lines: 18 introduced LOC across 5 ranges. Expand a file to inspect source; the > gutter marks introduced lines.

go.temporal.io/server/service/matching/matching_engine.go 18 introduced LOC · 5 ranges

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3009 partition tqid.Partition,
3010 pollMetadata *pollMetadata,
3011 > ) (*internalTask, bool, error) { matching_engine.go
3012 > pm, _, err := e.getTaskQueuePartitionManager(ctx, partition, true, loadCausePoll)
3013 > if err != nil {
3014 return nil, false, err
3015 }
3016
3017 > pollMetadata.localPollStartTime = e.timeSource.Now() matching_engine.go
3018 >
3019 > // We need to set a shorter timeout than the original ctx; otherwise, by the time ctx deadline is
3020 > // reached, instead of emptyTask, context timeout error is returned to the frontend by the rpc stack,
3021 > // which counts against our SLO. By shortening the timeout by a very small amount, the emptyTask can be
3022 > // returned to the handler before a context timeout error is generated.
3023 > workerInstanceKey := pollMetadata.workerInstanceKey
3024 > if workerInstanceKey != "" && e.shutdownWorkers.Get(workerInstanceKey) != nil {
3025 e.logger.Info("Rejecting poll from recently-shutdown worker",
3026 tag.WorkflowNamespaceID(partition.NamespaceId()),
3035 // times across pollers and prevent thundering herd reconnects. Jitter is capped so the
3036 // interval never falls below forwardedPollMinInterval.
3037 > longPollInterval := pm.LongPollExpirationInterval() matching_engine.go
3038 > if pollMetadata.forwardedFrom == "" {
3039 jitterMax := time.Duration(float64(longPollInterval) * forwardedPollJitterRatio)
3040 if longPollInterval-jitterMax < forwardedPollMinInterval {
3045 }
3046 }
3047 > ctx, cancel := contextutil.WithDeadlineBuffer(ctx, longPollInterval, returnEmptyTaskTimeBudget) matching_engine.go
3048 > defer cancel()
3049 >
3050 > if pollerID, ok := ctx.Value(pollerIDKey).(string); ok && pollerID != "" {
3051 e.outstandingPollers.Set(pollerID, cancel)
3052
3065 }()
3066 }
3067 > return pm.PollTask(ctx, pollMetadata) matching_engine.go
3068 }
3069

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