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main.go
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main.go
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// Command benchcore launches EC2 instances for benchmarking Chain Core.
package main
import (
"bytes"
"crypto/rand"
"database/sql"
"encoding/hex"
"encoding/json"
"errors"
"flag"
"fmt"
"io"
"io/ioutil"
"log"
"net"
"net/http"
"os"
"os/exec"
"path/filepath"
"strings"
"sync"
"text/template"
"time"
"golang.org/x/crypto/ssh"
"golang.org/x/crypto/ssh/agent"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/ec2"
"github.com/aws/aws-sdk-go/service/elb"
_ "github.com/lib/pq"
)
var (
flagD = flag.Bool("d", false, "delete instances from previous runs")
flagP = flag.Bool("p", false, "capture cpu, heap, and trace profiles from cored")
flagQ = flag.Duration("q", 0, "capture SQL slow queries")
flagWith = flag.String("with", "", "upload the provided file alongside the java program")
flagConfig = flag.String("config", "default", "the instance configuration to use")
flagDBStats = flag.Bool("dbstats", false, "capture database query statistics")
appName = "benchcore"
testRunID = appName + randString()
subnetID = "subnet-80560fd9"
key = os.Getenv("USER")
user = os.Getenv("USER")
schemaPath = os.Getenv("CHAIN") + "/core/schema.sql"
sdkDir = os.Getenv("CHAIN") + "/sdk/java"
region = "us-east-1" // TODO(kr): figure out how to not hard code this
awsSess = session.Must(session.NewSession(aws.NewConfig().WithRegion(region)))
ec2client = ec2.New(awsSess)
elbclient = elb.New(awsSess)
sshConfig = &ssh.ClientConfig{
User: "ubuntu",
Auth: sshAuthMethods(
os.Getenv("SSH_AUTH_SOCK"),
os.Getenv("SSH_PRIVATE_KEY"),
),
}
killInstanceIDs []*string // instances to terminate on exit
deleteELBNames []*string // elbs to delete on exit
profileFrequency = time.Minute * 3
)
var instanceConfigs = map[string]instanceConfig{
"default": instanceConfig{
AMI: "ami-40d28157", // Ubuntu LTS 16.04
InstanceType: "m3.xlarge",
CoredMaxDBConns: "500",
PostgresAMI: "ami-2ef48339", // Ubuntu Server 16.04 LTS (HVM), SSD Volume Type
PostgresInstanceType: "i2.xlarge",
MaxConnections: 530,
SharedBuffers: "15GB",
EffectiveCacheSize: "45GB", // ~3/4 total mem
WorkMem: "32MB",
MaintenanceWorkMem: "512MB",
MaxWALSize: "4GB",
WALBuffers: "64MB",
LogMinDurationStatement: 2000,
},
"max": instanceConfig{
AMI: "ami-2ef48339", // Ubuntu Server 16.04 LTS (HVM), SSD Volume Type
InstanceType: "m4.16xlarge",
CoredMaxDBConns: "500",
PostgresAMI: "ami-2ef48339", // Ubuntu Server 16.04 LTS (HVM), SSD Volume Type
PostgresInstanceType: "i2.4xlarge",
MaxConnections: 530,
SharedBuffers: "30GB",
EffectiveCacheSize: "85GB", // ~3/4 total mem
WorkMem: "64MB",
MaintenanceWorkMem: "1GB",
MaxWALSize: "8GB",
WALBuffers: "64MB",
LogMinDurationStatement: 2000,
},
}
type instanceConfig struct {
// cored & client instance
AMI string
InstanceType string
// Cored configuration
CoredMaxDBConns string
// Postgres configuration
PostgresInstanceType string
PostgresAMI string
MaxConnections uint64
SharedBuffers string
EffectiveCacheSize string
WorkMem string
MaintenanceWorkMem string
MaxWALSize string
WALBuffers string
LogMinDurationStatement int
}
func sshAuthMethods(agentSock, privKeyPEM string) (m []ssh.AuthMethod) {
conn, sockErr := net.Dial("unix", agentSock)
key, keyErr := ssh.ParsePrivateKey([]byte(privKeyPEM))
if sockErr != nil && keyErr != nil {
log.Println(sockErr)
log.Println(keyErr)
log.Fatal("no auth methods found (tried agent and environ)")
}
if sockErr == nil {
m = append(m, ssh.PublicKeysCallback(agent.NewClient(conn).Signers))
}
if keyErr == nil {
m = append(m, ssh.PublicKeys(key))
}
return m
}
type instance struct {
id string
addr string
privAddr string
}
func main() {
log.SetPrefix(appName + ": ")
log.SetFlags(log.Ldate | log.Lmicroseconds)
flag.Usage = func() {
fmt.Fprintf(os.Stderr, "Usage: %s [-d] [-p] X.java\n", os.Args[0])
fmt.Fprint(os.Stderr, usage)
flag.PrintDefaults()
}
flag.Parse()
slowQueryThreshold := time.Minute // default to configure when disabled
if *flagQ != 0 {
slowQueryThreshold = *flagQ
fmt.Printf("Logging queries slower than %s\n", slowQueryThreshold)
}
if *flagD {
doDelete()
return
}
if flag.NArg() == 0 {
flag.Usage()
os.Exit(2)
}
conf, ok := instanceConfigs[*flagConfig]
if !ok {
log.Fatalf("unsupported instance type %s", *flagConfig)
}
conf.LogMinDurationStatement = int(slowQueryThreshold / time.Millisecond)
progName := flag.Arg(0)
testJava, err := ioutil.ReadFile(progName)
must(err)
schema, err := ioutil.ReadFile(schemaPath)
must(err)
c := exec.Command("git", "rev-parse", "HEAD")
c.Stderr = os.Stderr
commit, err := c.Output()
must(err)
commit = bytes.TrimSpace(commit)
var (
db instance
client instance
cored instance
)
var wg sync.WaitGroup
wg.Add(3)
log.Println("starting EC2 instances")
go makeEC2("pg", conf, &db, &wg)
go makeEC2("cored", conf, &cored, &wg)
go makeEC2("client", conf, &client, &wg)
killInstanceIDs = append(killInstanceIDs, &db.id, &cored.id, &client.id)
coredBin := mustBuildCored()
corectlBin := mustBuildCorectl()
chainJAR := mustBuildJAR()
// NOTE(kr): do not access the local filesystem after this point!
log.Println("READY, done with local filesystem")
log.Println("waiting for EC2 instances to open port 22")
wg.Wait()
log.Println("init database")
must(scpPut(db.addr, schema, "schema.sql", 0644))
tpl, err := template.New("initdb").Parse(initdbsh)
must(err)
var buf bytes.Buffer
must(tpl.Execute(&buf, conf))
mustRunOn(db.addr, string(buf.Bytes()))
dbURL := "postgres://benchcore:benchcorepass@" + db.privAddr + "/core?sslmode=disable"
pubdbURL := "postgres://benchcore:benchcorepass@" + db.addr + "/core?sslmode=disable"
log.Println("init cored hosts")
must(scpPut(cored.addr, coredBin, "cored", 0755))
must(scpPut(cored.addr, corectlBin, "corectl", 0755))
go mustRunOn(cored.addr, coredsh, "dbURL", dbURL, "dbConns", conf.CoredMaxDBConns)
if *flagP {
writeFile("cored", coredBin)
}
mustRunOn(cored.addr, corectlsh)
tokenBytes, err := scpGet(cored.addr, "token.txt")
must(err)
tokenRW := strings.TrimSpace(string(tokenBytes))
tokenCrossCore, err := scpGet(cored.addr, "crosscore-token.txt")
must(err)
log.Printf("client-readwrite token: %s\n", tokenRW)
log.Printf("crosscore token: %s\n", string(tokenCrossCore))
log.Println("init client")
coreURL := "http://" + cored.privAddr + ":1999"
log.Println("core URL:", coreURL)
publicCoreURL := "http://" + cored.addr + ":1999"
log.Println("public core URL:", publicCoreURL)
must(scpPut(client.addr, chainJAR, "chain.jar", 0644))
javaClass := strings.TrimSuffix(progName, ".java")
must(scpPut(client.addr, testJava, javaClass+".java", 0644))
if *flagP {
go profile(publicCoreURL, tokenRW)
}
if *flagWith != "" {
b, err := ioutil.ReadFile(*flagWith)
must(err)
must(scpPut(client.addr, b, filepath.Base(*flagWith), 0644))
}
mustRunOn(client.addr, clientsh,
"coreURL", coreURL,
"apiToken", tokenRW,
"coreAddr", cored.privAddr,
"javaClass", javaClass,
)
statsBytes, err := scpGet(client.addr, "stats.json")
must(err)
if *flagQ != 0 {
slowQueryBytes, err := scpGet(db.addr, "/var/log/postgresql/benchcore-queries.csv")
must(err)
writeFile("./slow-queries.csv", slowQueryBytes)
}
log.Println("SUCCESS")
stats := make(map[string]interface{})
must(json.Unmarshal(statsBytes, &stats))
stats["commit"] = string(commit)
stats["prog"] = progName
stats["finished"] = time.Now().UTC()
out, err := json.MarshalIndent(stats, "", " ")
must(err)
os.Stdout.Write(append(out, '\n'))
if *flagDBStats {
captureDBStats(pubdbURL)
}
cleanup()
}
func doDelete() {
desc, err := ec2client.DescribeInstances(&ec2.DescribeInstancesInput{
Filters: []*ec2.Filter{
{Name: aws.String("tag:Application"), Values: []*string{aws.String("benchcore")}},
{Name: aws.String("tag:User"), Values: []*string{&user}},
},
})
if err != nil {
log.Fatal(err)
}
for _, res := range desc.Reservations {
for _, inst := range res.Instances {
killInstanceIDs = append(killInstanceIDs, inst.InstanceId)
}
}
lbs, err := elbclient.DescribeLoadBalancers(&elb.DescribeLoadBalancersInput{})
if err != nil {
log.Fatal(err)
}
for _, desc := range lbs.LoadBalancerDescriptions {
if strings.HasPrefix(*desc.LoadBalancerName, appName+"-"+user+"-") {
deleteELBNames = append(deleteELBNames, desc.LoadBalancerName)
}
}
cleanup()
}
func mustBuildCored() []byte {
log.Println("building cored")
env := []string{
"GOOS=linux",
"GOARCH=amd64",
"CGO_ENABLED=0",
}
date := time.Now().UTC().Format(time.RFC3339)
// TODO(jackson): support tls auth
cmd := exec.Command("go", "build",
"-tags", "http_ok localhost_auth no_reset",
"-ldflags", "-X main.buildDate="+date,
"-o", "/dev/stdout",
"chain/cmd/cored",
)
cmd.Env = mergeEnvLists(env, os.Environ())
cmd.Stderr = os.Stderr
out, err := cmd.Output()
must(err)
log.Printf("cored executable: %d bytes", len(out))
return out
}
func mustBuildCorectl() []byte {
log.Println("building corectl")
env := []string{
"GOOS=linux",
"GOARCH=amd64",
"CGO_ENABLED=0",
}
cmd := exec.Command("go", "build", "-o", "/dev/stdout", "chain/cmd/corectl")
cmd.Env = mergeEnvLists(env, os.Environ())
cmd.Stderr = os.Stderr
out, err := cmd.Output()
must(err)
log.Printf("corectl executable: %d bytes", len(out))
return out
}
func mustBuildJAR() []byte {
cmd := exec.Command("mvn", "-Djar.finalName=chain", "package")
cmd.Dir = sdkDir
cmd.Stdout = os.Stderr
cmd.Stderr = os.Stderr
must(cmd.Run())
b, err := ioutil.ReadFile(sdkDir + "/target/chain.jar")
must(err)
log.Printf("java SDK jar: %d bytes", len(b))
return b
}
func cleanup() {
if len(killInstanceIDs) > 0 {
_, err := ec2client.TerminateInstances(&ec2.TerminateInstancesInput{InstanceIds: killInstanceIDs})
if err != nil {
log.Println(err)
}
}
for _, name := range deleteELBNames {
_, err := elbclient.DeleteLoadBalancer(&elb.DeleteLoadBalancerInput{
LoadBalancerName: name,
})
if err != nil {
log.Println(err)
}
}
}
func scpPut(host string, data []byte, dest string, mode int) error {
log.Printf("scp %d bytes to %s", len(data), dest)
var client *ssh.Client
retry(func() (err error) {
client, err = ssh.Dial("tcp", host+":22", sshConfig)
return
})
defer client.Close()
s, err := client.NewSession()
if err != nil {
return err
}
s.Stderr = os.Stderr
s.Stdout = os.Stderr
w, err := s.StdinPipe()
if err != nil {
return err
}
go func() {
defer w.Close()
fmt.Fprintf(w, "C%04o %d %s\n", mode, len(data), dest)
w.Write(data)
w.Write([]byte{0})
}()
return s.Run("/usr/bin/scp -tr .")
}
func scpGet(host string, src string) (data []byte, err error) {
log.Printf("scp from %s", src)
var client *ssh.Client
retry(func() (err error) {
client, err = ssh.Dial("tcp", host+":22", sshConfig)
return
})
defer client.Close()
s, err := client.NewSession()
if err != nil {
return nil, err
}
s.Stderr = os.Stderr
r, err := s.StdoutPipe()
if err != nil {
return nil, err
}
err = s.Start("/usr/bin/scp </dev/zero -qf " + src)
if err != nil {
return nil, err
}
var n int
_, err = fmt.Fscanf(r, "C%04o %d %s\n", new(int), &n, new(string))
if err != nil {
return nil, fmt.Errorf("cannot scan scp code: %v", err)
}
log.Printf("scp reading %d bytes", n)
data = make([]byte, n+1)
read, err := io.ReadFull(r, data)
if err != nil {
return nil, fmt.Errorf("read %d of %d bytes: %v", read, n, err)
}
if data[len(data)-1] != 0 {
return nil, errors.New("expected trailing NUL byte")
}
data = data[:len(data)-1] // chop off trailing NUL
err = s.Wait()
if err != nil {
return nil, fmt.Errorf("wait: %v", err)
}
return data, nil
}
func mustRunOn(host, sh string, keyval ...string) {
if len(keyval)%2 != 0 {
log.Fatal("odd params", keyval)
}
log.Println("run on", host)
client, err := ssh.Dial("tcp", host+":22", sshConfig)
if err != nil {
log.Fatal(err)
}
defer client.Close()
s, err := client.NewSession()
if err != nil {
log.Fatal(err)
}
s.Stdout = os.Stderr
s.Stderr = os.Stderr
for i := 0; i < len(keyval); i += 2 {
sh = strings.Replace(sh, "{{"+keyval[i]+"}}", keyval[i+1], -1)
}
err = s.Run(sh)
if err != nil {
log.Fatal(err)
}
}
func makeEC2(role string, conf instanceConfig, inst *instance, wg *sync.WaitGroup) {
defer wg.Done()
runtoken := randString()
var n int64 = 1
ami, typ := conf.AMI, conf.InstanceType
if role == "pg" {
ami, typ = conf.PostgresAMI, conf.PostgresInstanceType
}
var resv *ec2.Reservation
retry(func() (err error) {
resv, err = ec2client.RunInstances(&ec2.RunInstancesInput{
ClientToken: &runtoken,
ImageId: &ami,
InstanceType: &typ,
KeyName: &key,
MinCount: &n,
MaxCount: &n,
SubnetId: &subnetID,
})
return err
})
inst.id = *resv.Instances[0].InstanceId
retry(func() error {
_, err := ec2client.CreateTags(&ec2.CreateTagsInput{
Resources: []*string{&inst.id},
Tags: []*ec2.Tag{
{Key: aws.String("Application"), Value: &appName},
{Key: aws.String("User"), Value: &user},
{Key: aws.String("Run"), Value: &testRunID},
{Key: aws.String("Role"), Value: &role},
},
})
return err
})
var desc *ec2.DescribeInstancesOutput
retry(func() (err error) {
desc, err = ec2client.DescribeInstances(&ec2.DescribeInstancesInput{
InstanceIds: []*string{&inst.id},
})
if err != nil {
return err
}
info := desc.Reservations[0].Instances[0]
state := info.State
const (
running = 16 // see ec2.InstanceState
pending = 0
)
if *state.Code&0xff == pending {
return errRetry
} else if *state.Code&0xff != running {
reason := ""
if x := info.StateReason; x != nil {
reason = *x.Message
}
return fmt.Errorf("instance %s state %s (%s)", inst.id, *state.Name, reason)
}
if info.PrivateIpAddress == nil || info.PublicIpAddress == nil {
return errRetry
}
inst.privAddr = *info.PrivateIpAddress
inst.addr = *info.PublicIpAddress
return nil
})
retry(func() error {
conn, err := net.Dial("tcp", inst.addr+":22")
if err != nil && strings.Contains(strings.ToLower(err.Error()), "refused") {
return errRetry
} else if err != nil {
return err
}
conn.Close()
return nil
})
}
var errRetry = errors.New("retry")
// retry f until it returns nil.
// wait 500ms in between attempts.
// log err unless it is errRetry.
// after 5 failures, it will call log.Fatal.
// returning errRetry doesn't count as a failure.
func retry(f func() error) {
for n := 0; n < 5; {
err := f()
if err != nil && err != errRetry {
log.Println("retrying:", err)
n++
}
if err != nil {
time.Sleep(500 * time.Millisecond)
continue
}
return
}
log.Fatal("too many retries")
}
func randString() string {
b := make([]byte, 10)
_, err := rand.Read(b)
if err != nil {
log.Fatalln(err)
}
return hex.EncodeToString(b)
}
func must(err error) {
if err != nil {
panic(err)
}
}
// mergeEnvLists merges the two environment lists such that
// variables with the same name in "in" replace those in "out".
// This always returns a newly allocated slice.
func mergeEnvLists(in, out []string) []string {
out = append([]string(nil), out...)
NextVar:
for _, inkv := range in {
k := strings.SplitAfterN(inkv, "=", 2)[0]
for i, outkv := range out {
if strings.HasPrefix(outkv, k) {
out[i] = inkv
continue NextVar
}
}
out = append(out, inkv)
}
return out
}
func profile(coreURL, clientToken string) {
tokenParts := strings.SplitN(clientToken, ":", 2)
username, password := tokenParts[0], tokenParts[1]
ticker := time.Tick(profileFrequency)
for {
captureProfile(coreURL+"/debug/pprof/heap", username, password, "heap", time.Now())
captureProfile(coreURL+"/debug/pprof/profile", username, password, "cpu", time.Now())
captureProfile(coreURL+"/debug/pprof/trace?seconds=15", username, password, "trace", time.Now())
<-ticker
}
}
func captureProfile(url, username, password, typ string, t time.Time) {
req, err := http.NewRequest("GET", url, nil)
if err != nil {
log.Printf("error getting %s profile: %s\n", typ, err)
return
}
req.SetBasicAuth(username, password)
resp, err := http.DefaultClient.Do(req)
if err != nil {
log.Printf("error getting %s profile: %s\n", typ, err)
return
}
defer resp.Body.Close()
out, err := os.Create(fmt.Sprintf("%s%d", typ, t.Unix()))
if err != nil {
log.Printf("error creating %s file: %s\n", typ, err)
return
}
defer out.Close()
io.Copy(out, resp.Body)
}
func captureDBStats(dburl string) {
db, err := sql.Open("postgres", dburl)
if err != nil {
log.Printf("error capturing db stats: %s", err.Error())
return
}
const q = `
SELECT
(total_time / 1000 / 60) as total_minutes,
(total_time/calls) as average_time,
calls,
query
FROM pg_stat_statements ORDER BY 1 DESC LIMIT 100;
`
rows, err := db.Query(q)
if err != nil {
log.Printf("error capturing db stats: %s", err.Error())
return
}
defer rows.Close()
var buf bytes.Buffer
for rows.Next() {
var (
totalMin, avgTimeMS float64
ncalls uint64
query string
)
err := rows.Scan(&totalMin, &avgTimeMS, &ncalls, &query)
if err != nil {
log.Printf("error capturing db stats: %s", err.Error())
return
}
fmt.Fprintf(
&buf,
"Total Minutes: %f\nAverage MS: %f\nCalls: %d\nQuery: %s\n---\n",
totalMin,
avgTimeMS,
ncalls,
query,
)
}
if err := rows.Err(); err != nil {
log.Printf("error capturing db stats: %s", err.Error())
}
writeFile("db-stats.txt", buf.Bytes())
}
func writeFile(path string, data []byte) {
err := ioutil.WriteFile(path, data, 0644)
if err != nil {
log.Printf("error writing %s: %s\n", path, err)
}
}
const initdbsh = `#!/bin/bash
set -eo pipefail
sudo bash <<EOFSUDO
set -eo pipefail
apt-get update -qq
mkdir -p /var/lib/postgresql
mkfs -t ext4 /dev/xvdb
mount /dev/xvdb /var/lib/postgresql/
apt-get install -y -qq postgresql-9.5 postgresql-client-9.5
cat <<EOF >/etc/postgresql/9.5/main/postgresql.conf
data_directory = '/var/lib/postgresql/9.5/main'
hba_file = '/etc/postgresql/9.5/main/pg_hba.conf'
ident_file = '/etc/postgresql/9.5/main/pg_ident.conf'
external_pid_file = '/var/run/postgresql/9.5-main.pid'
listen_addresses = '*'
port = 5432
max_connections = {{.MaxConnections}}
unix_socket_directories = '/var/run/postgresql'
ssl = true
ssl_cert_file = '/etc/ssl/certs/ssl-cert-snakeoil.pem'
ssl_key_file = '/etc/ssl/private/ssl-cert-snakeoil.key'
shared_buffers = {{.SharedBuffers}}
effective_cache_size = {{.EffectiveCacheSize}}
work_mem = {{.WorkMem}}
maintenance_work_mem = {{.MaintenanceWorkMem}}
max_wal_size = {{.MaxWALSize}}
wal_buffers = {{.WALBuffers}}
dynamic_shared_memory_type = posix
log_timezone = 'UTC'
stats_temp_directory = '/var/run/postgresql/9.5-main.pg_stat_tmp'
datestyle = 'iso, mdy'
timezone = 'UTC'
lc_messages = 'en_US.UTF-8'
lc_monetary = 'en_US.UTF-8'
lc_numeric = 'en_US.UTF-8'
lc_time = 'en_US.UTF-8'
default_text_search_config = 'pg_catalog.english'
shared_preload_libraries = 'pg_stat_statements'
pg_stat_statements.track = all
logging_collector = on
log_destination = 'csvlog'
log_directory = '/var/log/postgresql'
log_filename = 'benchcore-queries.log'
log_file_mode = 0644
log_min_duration_statement = {{.LogMinDurationStatement}}
EOF
cat <<EOF >/etc/postgresql/9.5/main/pg_hba.conf
# TYPE DATABASE USER ADDRESS METHOD
local all postgres peer
local all all peer
host all all 0.0.0.0/0 md5
host all all ::0/0 md5
EOF
/etc/init.d/postgresql restart
EOFSUDO
sudo -u postgres bash <<EOFPOSTGRES
set -eo pipefail
/usr/lib/postgresql/9.5/bin/createdb core
/usr/lib/postgresql/9.5/bin/psql \
--quiet \
-c "CREATE USER benchcore WITH PASSWORD 'benchcorepass' SUPERUSER; CREATE extension pg_stat_statements;" \
core
/usr/lib/postgresql/9.5/bin/psql --quiet -f $HOME/schema.sql core
EOFPOSTGRES
`
const coredsh = `#!/bin/bash
set -eo pipefail
sudo bash <<EOFROOT
ulimit -n 65535
sudo -u ubuntu bash <<EOFUBUNTU
export DATABASE_URL='{{dbURL}}'
export MAXDBCONNS={{dbConns}}
export GOTRACEBACK=crash
./cored 2>&1 | tee -a cored.log
EOFUBUNTU
EOFROOT
`
const corectlsh = `#!/bin/bash
export COREURL=:1999
./corectl wait
./corectl init
./corectl config-generator
./corectl create-token benchcore client-readwrite > $HOME/token.txt
./corectl create-token benchcrosscore crosscore > $HOME/crosscore-token.txt
`
const clientsh = `#!/bin/bash
set -eo pipefail
sudo bash <<EOFSUDO
set -eo pipefail
(
echo 'debconf shared/accepted-oracle-license-v1-1 select true'
echo 'debconf shared/accepted-oracle-license-v1-1 seen true'
) | debconf-set-selections
mkdir -p /var/cache/oracle-jdk8-installer
cat <<EOF >/var/cache/oracle-jdk8-installer/wgetrc
noclobber = off
dir_prefix = .
dirstruct = off
progress = dot:giga
verbose = off
quiet = on
tries = 5
EOF
add-apt-repository ppa:webupd8team/java
apt-get update -qq
apt-get install -y -qq oracle-java8-installer
EOFSUDO
echo compiling test
export JAVA_HOME=/usr/lib/jvm/java-8-oracle
export CLASSPATH=.:$HOME/chain.jar
javac {{javaClass}}.java
echo compiled test
echo pinging
ping -c 1 {{coreAddr}}
echo pinged
echo "Core URL: {{coreURL}}"
echo "API Token: {{apiToken}}"
echo curling "{{coreURL}}/debug/vars"
curl -si -u "{{apiToken}}" "{{coreURL}}/debug/vars"
echo curled
export CHAIN_API_URL='{{coreURL}}/'
export CHAIN_API_TOKEN='{{apiToken}}'
echo running test driver
java {{javaClass}}
echo all done
`
const usage = `
Command benchcore boots a set of EC2 instances, compiles
cored, corectl, and the Java SDK locally, sets up a postgres
database and chain core on the instances, copies the SDK and
X.java to another instance to serve as the test driver,
and runs the driver.
It expects a full Chain development environment. See
Readme.md in the root of this repo for instructions.
X.java can have any file name. It is expected to have
a public class of the same name containing the entry point.
If flag -p is given, benchcore will save the cored binary
to a file, along with heap and cpu profiles (captured once
every three minutes) to files cored, heapTTT, and cpuTTT,
where TTT is a unix timestamp.
On successful exit of the test driver, benchcore will delete
the AWS resources it created. If there is a failure, it will
leave the instances running for debugging investigation. To
clean up, run 'benchcore -d'.
Flags:
`