Vihren Atlas

task_processor.go ×2

Joint frontier

unlabeled · c_6674e6c496fa

3 tests · 4401 LOC · 194 files · introduces 3 tests · 31 LOC · 1 file

Introduces — evidence that enters the hierarchy at this concept

Code
2 ranges31 lines · 1 files
Tests
3 tests

Contains — complete concept membership

All code (extent)
659 ranges4401 lines · 194 files · Browse complete extent
All tests (intent)
3 testsBrowse complete intent

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Introduced tests

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3 tests introduced at this concept.

Introduced code

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1 file ranked by introduced lines: 31 introduced LOC across 2 ranges. Expand a file to inspect source; the > gutter marks introduced lines.

go.temporal.io/server/service/history/replication/task_processor.go 31 introduced LOC · 2 ranges

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348 ctx context.Context,
349 request *persistence.PutReplicationTaskToDLQRequest,
350 > ) error { task_processor.go
351 > _ = p.rateLimiter.Wait(ctx)
352 >
353 > // Route the DLQ entry to the shard that owns the workflow on this (target) cluster,
354 > // not the processor's shard. In cross-shard replication (source shard count < target
355 > // shard count), the processor shard does not always equal the owner shard. Using
356 > // p.config.GetShardID matches what handler.GetDLQReplicationMessages uses to dispatch,
357 > // so the operator-facing "DLQ for workflow W is at GetShardID(W)" model holds.
358 > targetShardID := p.config.GetShardID(
359 > namespace.ID(request.TaskInfo.GetNamespaceId()),
360 > request.TaskInfo.GetWorkflowId(),
361 > )
362 >
363 > p.logger.Info("enqueue replication task to DLQ",
364 > tag.TargetShardID(targetShardID),
365 > tag.SourceShardID(p.sourceShardID),
366 > tag.WorkflowNamespaceID(request.TaskInfo.GetNamespaceId()),
367 > tag.WorkflowID(request.TaskInfo.GetWorkflowId()),
368 > tag.WorkflowRunID(request.TaskInfo.GetRunId()),
369 > tag.TaskID(request.TaskInfo.GetTaskId()),
370 > )
371 > metrics.ReplicationDLQMaxLevelGauge.With(p.metricsHandler).Record(
372 > float64(request.TaskInfo.GetTaskId()),
373 > metrics.OperationTag(metrics.ReplicationDLQStatsScope),
374 > metrics.TargetClusterTag(p.sourceCluster),
375 > metrics.InstanceTag(convert.Int32ToString(targetShardID)))
376 > // The following is guaranteed to success or retry forever until processor is shutdown.
377 > return backoff.ThrottleRetry(func() error {
378 > err := writeTaskToDLQ(ctx, p.dlqWriter, p.sourceShardID, request.SourceClusterName, targetShardID, request.TaskInfo)
379 > if err != nil {
380 p.logger.Error("failed to enqueue replication task to DLQ", tag.Error(err))
381 metrics.ReplicationDLQFailed.With(p.metricsHandler).Record(
384 )
385 }
386 > return err task_processor.go
387 }, p.dlqRetryPolicy, p.isRetryableError)
388 }

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