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Batch Operation - start worker (#1998)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,185 @@ | ||
| // Copyright (c) 2017 Uber Technologies, Inc. | ||
| // | ||
| // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| // of this software and associated documentation files (the "Software"), to deal | ||
| // in the Software without restriction, including without limitation the rights | ||
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| // copies of the Software, and to permit persons to whom the Software is | ||
| // furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in | ||
| // all copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| // THE SOFTWARE. | ||
|
|
||
| package batcher | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "time" | ||
|
|
||
| "github.com/uber-go/tally" | ||
| "github.com/uber/cadence/common" | ||
| "github.com/uber/cadence/common/backoff" | ||
| "github.com/uber/cadence/common/cluster" | ||
| "github.com/uber/cadence/common/log" | ||
| "github.com/uber/cadence/common/log/tag" | ||
| "github.com/uber/cadence/common/metrics" | ||
| "github.com/uber/cadence/common/service/dynamicconfig" | ||
| "go.uber.org/cadence/.gen/go/cadence/workflowserviceclient" | ||
| "go.uber.org/cadence/.gen/go/shared" | ||
| "go.uber.org/cadence/worker" | ||
| ) | ||
|
|
||
| const ( | ||
| // maximum time waiting for this batcher to start before giving up | ||
| maxStartupTime = time.Minute * 3 | ||
| backOffInitialInterval = time.Second | ||
| backOffMaxInterval = time.Minute | ||
| rpcTimeout = time.Second | ||
|
|
||
| // TODO remove this logic after this issue is resolved: https://github.com/uber/cadence/issues/2002 | ||
| waitingForGlobalDomainCreationRacingCondition = time.Second * 20 | ||
| ) | ||
|
|
||
| type ( | ||
| // Config defines the configuration for batcher | ||
| Config struct { | ||
| AdminOperationToken dynamicconfig.StringPropertyFn | ||
| // ClusterMetadata contains the metadata for this cluster | ||
| ClusterMetadata cluster.Metadata | ||
| } | ||
|
|
||
| // BootstrapParams contains the set of params needed to bootstrap | ||
| // the batcher sub-system | ||
| BootstrapParams struct { | ||
| // Config contains the configuration for scanner | ||
| Config Config | ||
| // ServiceClient is an instance of cadence service client | ||
| ServiceClient workflowserviceclient.Interface | ||
| // MetricsClient is an instance of metrics object for emitting stats | ||
| MetricsClient metrics.Client | ||
| Logger log.Logger | ||
| // TallyScope is an instance of tally metrics scope | ||
| TallyScope tally.Scope | ||
| } | ||
|
|
||
| // batcherContext is the context object that get's | ||
| // passed around within the scanner workflows / activities | ||
| batcherContext struct { | ||
| cfg Config | ||
| svcClient workflowserviceclient.Interface | ||
| metricsClient metrics.Client | ||
| tallyScope tally.Scope | ||
| logger log.Logger | ||
| } | ||
|
|
||
| // Batcher is the background sub-system that execute workflow for batch operations | ||
| Batcher struct { | ||
| context batcherContext | ||
| } | ||
| ) | ||
|
|
||
| // New returns a new instance of batcher daemon Batcher | ||
| func New(params *BootstrapParams) *Batcher { | ||
| cfg := params.Config | ||
| return &Batcher{ | ||
| context: batcherContext{ | ||
| cfg: cfg, | ||
| svcClient: params.ServiceClient, | ||
| metricsClient: params.MetricsClient, | ||
| tallyScope: params.TallyScope, | ||
| logger: params.Logger.WithTags(tag.ComponentBatcher), | ||
| }, | ||
| } | ||
| } | ||
|
|
||
| // Start starts the scanner | ||
| func (s *Batcher) Start() error { | ||
| //retry until making sure global system domain is there | ||
| err := s.createGlobalSystemDomainIfNotExistsWithRetry() | ||
| if err != nil { | ||
| return err | ||
| } | ||
| time.Sleep(waitingForGlobalDomainCreationRacingCondition) | ||
|
|
||
| // start worker for batch operation workflows | ||
| workerOpts := worker.Options{ | ||
| MetricsScope: s.context.tallyScope, | ||
| BackgroundActivityContext: context.WithValue(context.Background(), batcherContextKey, s.context), | ||
| } | ||
| worker := worker.New(s.context.svcClient, common.SystemLocalDomainName, batcherTaskListName, workerOpts) | ||
| return worker.Start() | ||
| } | ||
|
|
||
| func (s *Batcher) createGlobalSystemDomainIfNotExistsWithRetry() error { | ||
| policy := backoff.NewExponentialRetryPolicy(backOffInitialInterval) | ||
| policy.SetMaximumInterval(backOffMaxInterval) | ||
| policy.SetExpirationInterval(maxStartupTime) | ||
| return backoff.Retry(func() error { | ||
| return s.createGlobalSystemDomainIfNotExists() | ||
| }, policy, func(err error) bool { | ||
| return true | ||
| }) | ||
| } | ||
|
|
||
| func (s *Batcher) createGlobalSystemDomainIfNotExists() error { | ||
| ctx, cancel := context.WithTimeout(context.Background(), rpcTimeout) | ||
| _, err := s.context.svcClient.DescribeDomain(ctx, &shared.DescribeDomainRequest{ | ||
| Name: common.StringPtr(common.SystemGlobalDomainName), | ||
| }) | ||
| cancel() | ||
|
|
||
| if err == nil { | ||
| s.context.logger.Info("Global system domain already exists", tag.WorkflowDomainName(common.SystemGlobalDomainName)) | ||
| return nil | ||
| } | ||
|
|
||
| if s.context.cfg.ClusterMetadata.IsMasterCluster() && !s.context.cfg.ClusterMetadata.IsGlobalDomainEnabled() { | ||
| return fmt.Errorf("not master cluster, retry on describe domain only") | ||
| } | ||
|
|
||
| ctx, cancel = context.WithTimeout(context.Background(), rpcTimeout) | ||
| err = s.context.svcClient.RegisterDomain(ctx, s.getDomainCreationRequest()) | ||
| cancel() | ||
| if err != nil { | ||
| s.context.logger.Error("Error creating global system domain", tag.Error(err)) | ||
| return err | ||
| } | ||
| s.context.logger.Info("Domain created successfully") | ||
| return nil | ||
| } | ||
|
|
||
| func (s *Batcher) getDomainCreationRequest() *shared.RegisterDomainRequest { | ||
| req := &shared.RegisterDomainRequest{ | ||
| Name: common.StringPtr(common.SystemGlobalDomainName), | ||
| WorkflowExecutionRetentionPeriodInDays: common.Int32Ptr(common.SystemDomainRetentionDays), | ||
| EmitMetric: common.BoolPtr(true), | ||
| SecurityToken: common.StringPtr(s.context.cfg.AdminOperationToken()), | ||
| IsGlobalDomain: common.BoolPtr(false), | ||
| } | ||
|
|
||
| if s.context.cfg.ClusterMetadata.IsGlobalDomainEnabled() { | ||
| req.IsGlobalDomain = common.BoolPtr(true) | ||
| req.ActiveClusterName = common.StringPtr(s.context.cfg.ClusterMetadata.GetMasterClusterName()) | ||
| var clusters []*shared.ClusterReplicationConfiguration | ||
| for name, c := range s.context.cfg.ClusterMetadata.GetAllClusterInfo() { | ||
| if !c.Enabled { | ||
| continue | ||
| } | ||
| clusters = append(clusters, &shared.ClusterReplicationConfiguration{ | ||
| ClusterName: common.StringPtr(name), | ||
| }) | ||
| } | ||
| req.Clusters = clusters | ||
| } | ||
|
|
||
| return req | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| // Copyright (c) 2017 Uber Technologies, Inc. | ||
| // | ||
| // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| // of this software and associated documentation files (the "Software"), to deal | ||
| // in the Software without restriction, including without limitation the rights | ||
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| // copies of the Software, and to permit persons to whom the Software is | ||
| // furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in | ||
| // all copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| // THE SOFTWARE. | ||
|
|
||
| package batcher | ||
|
|
||
| const ( | ||
| batcherContextKey = "batcherContext" | ||
| batcherTaskListName = "cadence-sys-batcher-tasklist" | ||
| ) |
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