yrong

package main

//一致性哈希(Consistent Hashing)
//author: Xiong Chuan Liang
//date: 2015-2-20

import (
	"fmt"
	"hash/crc32"
	"sort"

yrong

package main

import (
	"fmt"
	"time"
)

// Suggestions from golang-nuts
// http://play.golang.org/p/Ctg3_AQisl

yrong

var str = "vfs.fs.size[C:,pfree]"
var matched = str.match(/^vfs.fs.size\[(.*?):,pfree\]$/)
//matched[1]="C"

yrong

package main

import (
    "encoding/json"
    "flag"
    "fmt"
    "github.com/hashicorp/consul/api"
    "log"
    "math/rand"
    "net/http"

yrong

session_id=$(curl -s -XPUT "${consul_address}/v1/session/create" -d "{\"Name\": \"${task_name}\"}"  | jq -r '.ID')
acquire_lock() {
    session_id=${1}
    echo "Trying to acquire the lock..."
    result=$(curl -s -XPUT "${consul_address}/v1/kv/locks/${task_name}/.lock?acquire=${session_id}")
    [ "${result}" == "true" ] && echo "Lock acquired"
}
release_lock() {
    session_id=${1}
    echo "Releasing the lock..."

yrong

package main

import (
	"fmt"
)

type Fetcher interface {
	// Fetch returns the body of URL and
	// a slice of URLs found on that page.
	Fetch(url string) (body string, urls []string, err error)

yrong

-- Two dashes start a one-line comment.

--[[
     Adding two ['s and ]'s makes it a
     multi-line comment.
--]]

----------------------------------------------------
-- 1. Variables and flow control.
----------------------------------------------------

yrong

// Package main serves as an example application that makes use of the observer pattern.
package main

import (
	"fmt"
	"time"
)

type (
	// Event defines an indication of a point-in-time occurrence.

yrong

func main(){
	var n int = 10
	var chs = make([]chan int, n)

	var worker = func(n int, c chan int){
		for i:=0;i<n;i++{
			c<-i
		}
		close(c)
	}

yrong

# Create the datadog user with select only permissions:
#  CREATE USER datadog WITH PASSWORD '<complex_password>';
#
# Grant select permissions on a table or view that you want to monitor:
#  GRANT SELECT ON <schema>.<table> TO datadog;
#
# Grant permissions for a specific column on a table or view that you want to monitor:
#  GRANT SELECT (id, name) ON <schema>.<table> TO datadog;
#
# Let non-superusers look at pg_stat_activity in a read-only fashon.