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Add gencorpora cmd to generate ES corpora for rally
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| // 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 main | ||
|
|
||
| import ( | ||
| "context" | ||
| "flag" | ||
| "fmt" | ||
| "io" | ||
| "log" | ||
| "os" | ||
| "path/filepath" | ||
| "time" | ||
|
|
||
| "github.com/elastic/apm-server/systemtest/gencorpora" | ||
| "github.com/elastic/apm-server/systemtest/loadgen" | ||
| ) | ||
|
|
||
| func main() { | ||
| corporaDir := flag.String("corpora-dir", "", "output directory for corpora ndjson files") | ||
| flag.Parse() | ||
|
|
||
| f, err := getWriter(*corporaDir) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| defer f.Close() | ||
|
|
||
| // Create fake ES server | ||
| esServer, err := gencorpora.GetCatBulkServer(f) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| defer func() { | ||
| ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second) | ||
| if err := esServer.Shutdown(ctx); err != nil { | ||
| log.Fatal("failed to shutdown cat bulk server", err) | ||
| } | ||
| cancel() | ||
| }() | ||
|
|
||
| // Create APM-Server to send documents to fake ES | ||
| apmServer, err := gencorpora.GetAPMServer(esServer.Addr) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| defer func() { | ||
| if err := apmServer.Cmd.Process.Signal(os.Interrupt); err != nil { | ||
| apmServer.Cmd.Process.Kill() | ||
| log.Fatal("failed to interrupt process, initiated kill", err) | ||
| } | ||
| if err := apmServer.Wait(); err != nil { | ||
| log.Fatal("failed while waiting for APM-Server to exit", err) | ||
| } | ||
| }() | ||
|
|
||
| // Start fake ES and APM-Server | ||
| go func() { | ||
| err := esServer.Serve() | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| }() | ||
| if err := apmServer.Start(); err != nil { | ||
| log.Fatal(err) | ||
| } | ||
|
|
||
| // Wait for APM Server to be ready to accept requests | ||
| <-time.After(2 * time.Second) | ||
|
|
||
| // Send data to APM-Server | ||
| if err := generateLoad(context.Background(), "http://127.0.0.1:8200"); err != nil { | ||
| log.Fatal("failed to generate load", err) | ||
| } | ||
| } | ||
|
|
||
| func getWriter(corporaDir string) (io.WriteCloser, error) { | ||
| if corporaDir == "" { | ||
| return os.Stdout, nil | ||
| } | ||
| return os.Create( | ||
| filepath.Join(corporaDir, fmt.Sprintf("%s.ndjson", time.Now().Format(time.RFC3339))), | ||
| ) | ||
| } | ||
|
|
||
| func generateLoad(ctx context.Context, serverURL string) error { | ||
| inf := loadgen.GetNewLimiter(0) | ||
| handler, err := loadgen.NewEventHandler(`*.ndjson`, serverURL, "", inf) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| _, err = handler.SendBatches(ctx) | ||
| return err | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| package gencorpora | ||
|
|
||
| import ( | ||
| "bufio" | ||
| "context" | ||
| "fmt" | ||
| "log" | ||
|
|
||
| "github.com/elastic/apm-server/systemtest/apmservertest" | ||
| ) | ||
|
|
||
| func GetAPMServer(esHost string) (*apmservertest.ServerCmd, error) { | ||
| args := []string{ | ||
| "--strict.perms=false", | ||
| "-E", "logging.level=warning", | ||
| "-E", "logging.to_stderr=true", | ||
| "-E", "apm-server.data_streams.wait_for_integration=false", | ||
| "-E", "apm-server.host=127.0.0.1:8200", | ||
| "-E", fmt.Sprintf("output.elasticsearch.hosts=['%s']", esHost), | ||
| } | ||
|
|
||
| cmd := apmservertest.ServerCommand(context.Background(), "run", args...) | ||
| reader, err := cmd.StderrPipe() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| // log streaming | ||
| go func() { | ||
| scanner := bufio.NewScanner(reader) | ||
|
|
||
| for scanner.Scan() { | ||
| log.Println(scanner.Text()) | ||
| } | ||
| }() | ||
|
|
||
| return cmd, nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| package gencorpora | ||
|
|
||
| import ( | ||
| "bufio" | ||
| "compress/gzip" | ||
| "encoding/json" | ||
| "fmt" | ||
| "io" | ||
| "log" | ||
| "net" | ||
| "net/http" | ||
| ) | ||
|
|
||
| // CatBulkServer wraps http server and a listener to listen | ||
| // for ES requests on any available port | ||
| type CatBulkServer struct { | ||
| *http.Server | ||
| listener net.Listener | ||
| } | ||
|
|
||
| // GetCatBulkServer returns a HTTP Server which can serve as a | ||
| // fake ES server writing the response of the bulk request to the | ||
| // provided writer. Writes to the provided writer must be thread safe. | ||
| func GetCatBulkServer(writer io.Writer) (*CatBulkServer, error) { | ||
| listener, err := net.Listen("tcp", ":0") | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| return &CatBulkServer{ | ||
| listener: listener, | ||
| Server: &http.Server{ | ||
| Addr: listener.Addr().String(), | ||
| Handler: handleReq(writer), | ||
| }, | ||
| }, nil | ||
| } | ||
|
|
||
| // Serve accepts incoming requests to the fake ES server on a listener | ||
| func (s *CatBulkServer) Serve() error { | ||
| return s.Server.Serve(s.listener) | ||
| } | ||
|
|
||
| func handleReq(writer io.Writer) http.HandlerFunc { | ||
| return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) { | ||
| w.Header().Set("X-Elastic-Product", "Elasticsearch") | ||
| switch req.Method { | ||
| case http.MethodGet: | ||
| w.WriteHeader(http.StatusOK) | ||
| w.Write([]byte(`{"cluster_uuid": "cat_bulk"}`)) | ||
| case http.MethodPost: | ||
| reader := req.Body | ||
| defer req.Body.Close() | ||
|
|
||
| if encoding := req.Header.Get("Content-Encoding"); encoding == "gzip" { | ||
| var err error | ||
| reader, err = gzip.NewReader(reader) | ||
| if err != nil { | ||
| log.Println("failed to read request body", err) | ||
| w.WriteHeader(http.StatusBadRequest) | ||
| return | ||
| } | ||
| } | ||
|
|
||
| respItems := make(map[string]map[string]int) | ||
| scanner := bufio.NewScanner(reader) | ||
|
|
||
| for count := 0; scanner.Scan(); count++ { | ||
| fmt.Fprintln(writer, scanner.Text()) | ||
| if count%2 == 0 { | ||
| respItems["action"] = map[string]int{"status": 200} | ||
| } | ||
| } | ||
|
|
||
| resp, err := json.Marshal(respItems) | ||
| if err != nil { | ||
| w.WriteHeader(http.StatusInternalServerError) | ||
| return | ||
| } | ||
| w.WriteHeader(http.StatusOK) | ||
| w.Write(resp) | ||
| default: | ||
| w.WriteHeader(http.StatusNotFound) | ||
| } | ||
| }) | ||
| } |
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