douglarek

$ CFLAGS="-I$(xcrun --show-sdk-path)/usr/include" pyenv install -v 3.7.0

douglarek

$ curl -C - https://download.java.net/java/ga/jdk11/openjdk-11_osx-x64_bin.tar.gz -O openjdk-11_osx-x64_bin.tar.gz
$ tar xf openjdk-11_osx-x64_bin.tar.gz
$ sudo mv jdk-11.jdk /Library/Java/JavaVirtualMachines/
$ java -version
openjdk version "11" 2018-09-25
OpenJDK Runtime Environment 18.9 (build 11+28)
OpenJDK 64-Bit Server VM 18.9 (build 11+28, mixed mode)

douglarek

# Set the retries to Integer.MAX_VALUE to ensure that transient failures
# will not result in data loss.
ksql.streams.producer.retries=2147483647

# Set the batch expiry to Long.MAX_VALUE to ensure that queries will not
# terminate if the underlying Kafka cluster is unavailable for a period of
# time.
ksql.streams.producer.confluent.batch.expiry.ms=9223372036854775807

# Allows more frequent retries of requests when there are failures,

douglarek

command-line:

$ h2load http://localhost:50051/helloworld.Greeter/SayHello \
      -d grpc-upload \
      -H 'te: trailers'
      -H 'content-type: application/grpc'
      -n1000000 -c100 -m100

Create grpc-upload file using following python script:

douglarek

package main

import "encoding/json"

// jsonText comes from http://json.org/example.html
var jsonText = []byte(`
{
   ... // 此处省略, 同上
}`)

douglarek

package main

import "encoding/json"

// jsonText comes from http://json.org/example.html
var jsonText = []byte(`
{
   "glossary":{
      "title":"example glossary",
      "GlossDiv":{

douglarek

Useful Spacemacs commands

• SPC q q - quit
• SPC w / - split window vertically
• SPC w - - split window horizontally
• SPC 1 - switch to window 1
• SPC 2 - switch to window 2
• SPC w c - delete current window
• SPC TAB - switch to previous buffer
• SPC b b - switch buffers

douglarek

package main

import (
	"log"
	"time"

	"golang.org/x/sys/unix"
)

func main() {

douglarek

package main

import (
	"fmt"
	"sync"
)

// Fetcher ...
type Fetcher interface {
	// Fetch returns the body of URL and

douglarek

/* Exercise: Loops and Functions #43 */
package main

import (
	"fmt"
	"math"
)

func Sqrt(x float64) float64 {
	z := float64(2.)