Vihren Atlas

endpoint_registry.go ×7

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unlabeled · c_ef05c50313b4

19 tests · 1955 LOC · 82 files · introduces 0 tests · 50 LOC · 1 file

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Code
7 ranges50 lines · 1 files
Tests
0 tests

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279 ranges1955 lines · 82 files · Browse complete extent
All tests (intent)
19 testsBrowse complete intent

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1 file ranked by introduced lines: 50 introduced LOC across 7 ranges. Expand a file to inspect source; the > gutter marks introduced lines.

go.temporal.io/server/common/nexus/endpoint_registry.go 50 introduced LOC · 7 ranges

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74 var ErrNexusDisabled = serviceerror.NewFailedPrecondition("nexus is disabled")
75
76 > func NewEndpointRegistryConfig(dc *dynamicconfig.Collection) *EndpointRegistryConfig { endpoint_registry.go
77 > config := &EndpointRegistryConfig{
78 > refreshLongPollTimeout: dynamicconfig.RefreshNexusEndpointsLongPollTimeout.Get(dc),
79 > refreshPageSize: dynamicconfig.NexusEndpointListDefaultPageSize.Get(dc),
80 > refreshMinWait: dynamicconfig.RefreshNexusEndpointsMinWait.Get(dc),
81 > readThroughCacheSize: dynamicconfig.NexusReadThroughCacheSize.Get(dc),
82 > readThroughCacheTTL: dynamicconfig.NexusReadThroughCacheTTL.Get(dc),
83 > refreshOnRead: dynamicconfig.ForceNexusEndpointRefreshOnRead.Get(dc),
84 > }
85 > config.refreshRetryPolicy = backoff.NewExponentialRetryPolicy(config.refreshMinWait()).WithMaximumInterval(config.refreshLongPollTimeout())
86 > return config
87 > }
88
89 func NewEndpointRegistry(
93 logger log.Logger,
94 metricsHandler metrics.Handler,
95 > ) *EndpointRegistryImpl { endpoint_registry.go
96 > return &EndpointRegistryImpl{
97 > config: config,
98 > endpointsByID: make(map[string]*persistencespb.NexusEndpointEntry),
99 > endpointsByName: make(map[string]*persistencespb.NexusEndpointEntry),
100 > matchingClient: matchingClient,
101 > persistence: persistence,
102 > logger: logger,
103 > readThroughCacheByID: cache.NewWithMetrics(config.readThroughCacheSize(), &cache.Options{
104 > TTL: config.readThroughCacheTTL(),
105 > }, metricsHandler.WithTags(metrics.CacheTypeTag(metrics.NexusEndpointRegistryReadThroughCacheTypeTagValue))),
106 > }
107 > }
108
109 // StartLifecycle starts this component. It should only be invoked by an fx lifecycle hook.
270 // loadEndpoints initializes the in-memory view of endpoints data.
271 // It first tries to load from matching service and falls back to querying persistence directly if matching is unavailable.
272 > func (r *EndpointRegistryImpl) loadEndpoints(ctx context.Context) error { endpoint_registry.go
273 > tableVersion, endpoints, err := r.getAllEndpointsMatchingWithPersistenceFallback(ctx)
274 > if err != nil {
275 return err
276 }
366 }
367
368 > func (r *EndpointRegistryImpl) getAllEndpointsMatchingWithPersistenceFallback(ctx context.Context) (int64, []*persistencespb.NexusEndpointEntry, error) { endpoint_registry.go
369 > tableVersion, endpoints, err := r.getAllEndpointsMatching(ctx)
370 > if err != nil {
371 // Fallback to persistence on matching error during initial load.
372 r.logger.Error("error from matching when initializing Nexus endpoint cache", tag.Error(err))
373 tableVersion, endpoints, err = r.getAllEndpointsPersistence(ctx)
374 }
375 > return tableVersion, endpoints, err endpoint_registry.go
376 }
377
378 // getAllEndpointsMatching paginates over all endpoints returned by matching. It always does a simple get.
379 > func (r *EndpointRegistryImpl) getAllEndpointsMatching(ctx context.Context) (int64, []*persistencespb.NexusEndpointEntry, error) { endpoint_registry.go
380 > return r.getAllEndpoints(ctx, func(currentTableVersion int64, currentPageToken []byte) (int64, []byte, []*persistencespb.NexusEndpointEntry, error) {
381 > resp, err := r.matchingClient.ListNexusEndpoints(ctx, &matchingservice.ListNexusEndpointsRequest{
382 > NextPageToken: currentPageToken,
383 > PageSize: int32(r.config.refreshPageSize()),
384 > LastKnownTableVersion: currentTableVersion,
385 > Wait: false,
386 > })
387 > if err != nil {
388 return 0, nil, nil, err
389 }
410 // getAllEndpointsPersistence paginates over all endpoints returned by persistence.
411 // Should only be used as a fall-back if matching service is unavailable during initial load.
412 > func (r *EndpointRegistryImpl) getAllEndpoints(ctx context.Context, getter func(int64, []byte) (int64, []byte, []*persistencespb.NexusEndpointEntry, error)) (int64, []*persistencespb.NexusEndpointEntry, error) { endpoint_registry.go
413 > var currentPageToken []byte
414 >
415 > currentTableVersion := int64(0)
416 > entries := make([]*persistencespb.NexusEndpointEntry, 0)
417 >
418 > for ctx.Err() == nil {
419 > respTableVersion, respNextPageToken, respEntries, err := getter(currentTableVersion, currentPageToken)
420 > if err != nil {
421 var fpe *serviceerror.FailedPrecondition
422 if errors.As(err, &fpe) && fpe.Message == p.ErrNexusTableVersionConflict.Error() {

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