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Allow gencorpora to replay events (#8952)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| // Licensed to Elasticsearch B.V. under one or more contributor | ||
| // license agreements. See the NOTICE file distributed with | ||
| // this work for additional information regarding copyright | ||
| // ownership. Elasticsearch B.V. licenses this file to you under | ||
| // the Apache License, Version 2.0 (the "License"); you may | ||
| // not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, | ||
| // software distributed under the License is distributed on an | ||
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| // KIND, either express or implied. See the License for the | ||
| // specific language governing permissions and limitations | ||
| // under the License. | ||
|
|
||
| package gencorpora | ||
|
|
||
| import ( | ||
| "context" | ||
| "errors" | ||
| "fmt" | ||
| "time" | ||
|
|
||
| "github.com/hashicorp/go-multierror" | ||
| "golang.org/x/sync/errgroup" | ||
|
|
||
| "github.com/elastic/apm-server/systemtest/loadgen" | ||
| ) | ||
|
|
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| // Run runs APM-Server and CatBulk server followed by sending | ||
| // load to APM-Server and writing the generated corpus to a file. | ||
| // Run exits on error or on successful corpora generation. | ||
| func Run(rootCtx context.Context) error { | ||
| // Create fake ES server | ||
| esServer, err := NewCatBulkServer() | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| // Create APM-Server to send documents to fake ES | ||
| apmServer := NewAPMServer(rootCtx, esServer.Addr) | ||
| if err := apmServer.Start(); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| ctx, cancel := context.WithCancel(rootCtx) | ||
| g, gctx := errgroup.WithContext(ctx) | ||
| g.Go(func() error { | ||
| <-gctx.Done() | ||
|
|
||
| var result error | ||
| if err := apmServer.Close(); err != nil { | ||
| result = multierror.Append(result, err) | ||
| } | ||
| if err := esServer.Stop(); err != nil { | ||
| result = multierror.Append(result, err) | ||
| } | ||
|
|
||
| return result | ||
| }) | ||
| g.Go(esServer.Serve) | ||
| g.Go(func() error { | ||
| return StreamAPMServerLogs(ctx, apmServer) | ||
| }) | ||
| g.Go(func() error { | ||
| defer cancel() | ||
|
|
||
| waitCtx, waitCancel := context.WithTimeout(gctx, 10*time.Second) | ||
| defer waitCancel() | ||
| if err := apmServer.WaitForPublishReady(waitCtx); err != nil { | ||
| return fmt.Errorf("failed while waiting for APM-Server to be ready: %w", err) | ||
| } | ||
|
|
||
| return generateLoad(ctx, apmServer.URL, gencorporaConfig.ReplayCount) | ||
| }) | ||
|
|
||
| if err := g.Wait(); !errors.Is(err, context.Canceled) { | ||
| return err | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
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| func generateLoad(ctx context.Context, serverURL string, replayCount int) error { | ||
| inf := loadgen.GetNewLimiter(0) | ||
| handler, err := loadgen.NewEventHandler(`*.ndjson`, serverURL, "", inf) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| for i := 0; i < replayCount; i++ { | ||
| if _, err = handler.SendBatches(ctx); err != nil { | ||
| return fmt.Errorf("failed sending batches on iteration %d: %w", i+1, err) | ||
| } | ||
| } | ||
| return nil | ||
| } |