muroon / newrelic_apm

newrelic_apm

Setup

newrelicAppName := os.Getenv("NEW_RELIC_APP_NAME") // example: isucon9-qualify-muroon
newrelicLicense := os.Getenv("NEW_RELIC_LICENSE")
err = apm.Setup(newrelicAppName, newrelicLicense)
if err != nil {
	log.Fatalf("failed to NewRelic: %s.", err.Error())
}

HTTP Handler

apm.HandleFunc(mux, pat.Post("/initialize"), postInitialize)

MiddlewareNewRelicTransaction

NewRelic Transactionのミドルウェアを設定

mux := goji.NewMux()
mux.Use(apm.MiddlewareNewRelicTransaction)

// API
mux.HandleFunc(pat.Post("/initialize"), postInitialize)
mux.HandleFunc(pat.Get("/new_items.json"), getNewItems)
(省略)

RequestWithContext

http.RequestにNewRelicのコンテキストを付与

var (
	client = &http.Client{
		Transport: newrelic.NewRoundTripper(nil),
	}
)

(省略)

res, err := client.Do(apm.RequestWithContext(ctx, req))

GetClient

req, err := http.newrequest(http.methodpost, url, bytes.newbuffer(b))
req.header.set("user-agent", useragent)
req.header.set("content-type", "application/json")

res, err := getclient().do(req)

RequestDoWithContext

RequestWithContextとGetClientと送信(cliend.Do)をまとめて行う

res, err := apm.RequestDoWithContext(ctx, req)

StartDatastoreSegment

DB(MySQL)のAPM

使用例

// tx is parent APM transaction
s := apm.startdatastoresegment(tx, "select * from `categories` where `id` = ?", categoryid)
err = sqlx.get(q, &category, "select * from `categories` where `id` = ?", categoryid)
s.End()

使用するにはDB情報を事前にセット(必須ではない)

apm.SetupDB(host, port, dbname)

for echo framework

• MiddlewareNewRelicEcho
  • Sample
• TransactionFromEchoContext
  • Sample

reference

https://github.com/muroon/isucon9-qualify/commit/9e0d5df64bd747288e1b49c1e680dd56dd75e771#diff-10a40f961254d187b7cb202a0c22bca0