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// Copyright 2018 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
package main
import (
"crypto/md5"
crand "crypto/rand"
"fmt"
"io"
"math/rand"
"sync"
"time"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/metrics"
"github.com/pborman/uuid"
cli "gopkg.in/urfave/cli.v1"
)
func uploadAndSync(c *cli.Context) error {
defer func(now time.Time) {
totalTime := time.Since(now)
log.Info("total time", "time", totalTime, "kb", filesize)
metrics.GetOrRegisterResettingTimer("upload-and-sync.total-time", nil).Update(totalTime)
}(time.Now())
generateEndpoints(scheme, cluster, appName, from, to)
seed := int(time.Now().UnixNano() / 1e6)
log.Info("uploading to "+endpoints[0]+" and syncing", "seed", seed)
h := md5.New()
r := io.TeeReader(io.LimitReader(crand.Reader, int64(filesize*1000)), h)
t1 := time.Now()
hash, err := upload(r, filesize*1000, endpoints[0])
if err != nil {
log.Error(err.Error())
return err
}
metrics.GetOrRegisterResettingTimer("upload-and-sync.upload-time", nil).UpdateSince(t1)
fhash := h.Sum(nil)
log.Info("uploaded successfully", "hash", hash, "digest", fmt.Sprintf("%x", fhash))
time.Sleep(time.Duration(syncDelay) * time.Second)
wg := sync.WaitGroup{}
if single {
rand.Seed(time.Now().UTC().UnixNano())
randIndex := 1 + rand.Intn(len(endpoints)-1)
ruid := uuid.New()[:8]
wg.Add(1)
go func(endpoint string, ruid string) {
for {
start := time.Now()
err := fetch(hash, endpoint, fhash, ruid)
if err != nil {
continue
}
metrics.GetOrRegisterResettingTimer("upload-and-sync.single.fetch-time", nil).UpdateSince(start)
wg.Done()
return
}
}(endpoints[randIndex], ruid)
} else {
for _, endpoint := range endpoints[1:] {
ruid := uuid.New()[:8]
wg.Add(1)
go func(endpoint string, ruid string) {
for {
start := time.Now()
err := fetch(hash, endpoint, fhash, ruid)
if err != nil {
continue
}
metrics.GetOrRegisterResettingTimer("upload-and-sync.each.fetch-time", nil).UpdateSince(start)
wg.Done()
return
}
}(endpoint, ruid)
}
}
wg.Wait()
log.Info("all endpoints synced random file successfully")
return nil
}
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