摘要：后來開源，現在有大規模部署和使用，每天處理百萬級任務。是典型的類設計，協議和使用方式都是同樣的風格，所以使用過的用戶會覺得似曾相識。

Beanstalk，一個高性能、輕量級的分布式內存隊列系統，最初設計的目的是想通過后臺異步執行耗時的任務來降低高容量Web應用系統的頁面訪問延遲，支持過有9.5 million用戶的Facebook Causes應用。
后來開源，現在有PostRank大規模部署和使用，每天處理百萬級任務。Beanstalkd是典型的類Memcached設計，協議和使用方式都是同樣的風格，所以使用過memcached的用戶會覺得Beanstalkd似曾相識。

job典型的生命周期

   put            reserve               delete
  -----> [READY] ---------> [RESERVED] --------> *poof*

job可能的狀態遷移

   put with delay               release with delay
  ----------------> [DELAYED] <------------.
                        |                   |
                 kick   | (time passes)     |
                        |                   |
   put                  v     reserve       |       delete
  -----------------> [READY] ---------> [RESERVED] --------> *poof*
                       ^  ^                |  |
                       |     release      |  |
                       |    `-------------"   |
                       |                      |
                       | kick                 |
                       |                      |
                       |       bury           |
                    [BURIED] <---------------"
                       |
                       |  delete
                        `--------> *poof*

安裝略過，如需請參考 點擊參考

注：需要安裝Composer，教程鏈接 Composer安裝方法

用于操作Beanstalkd 的PHP 第三方庫，安裝略過，如需請參考 點擊參考

Beanstalkd狀態

$stats = $pheanstalk->stats();

返回：

PheanstalkResponseArrayResponse Object
(
    [_name:PheanstalkResponseArrayResponse:private] => OK
    [storage:ArrayObject:private] => Array
        (
            [current-jobs-urgent] => 0 //當前存在優先級的任務數
            [current-jobs-ready] => 0 //當前準備就緒的任務數
            [current-jobs-reserved] => 0 //當前處于阻塞的任務數
            [current-jobs-delayed] => 0 //當前處于延遲狀態的任務數
            [current-jobs-buried] => 0 //當前預留的任務數
            [cmd-put] => 0 //cmd命令為累計運行次數
            [cmd-peek] => 0
            [cmd-peek-ready] => 0
            [cmd-peek-delayed] => 0
            [cmd-peek-buried] => 0
            [cmd-reserve] => 0
            [cmd-reserve-with-timeout] => 0
            [cmd-delete] => 0
            [cmd-release] => 0
            [cmd-use] => 0
            [cmd-watch] => 0
            [cmd-ignore] => 0
            [cmd-bury] => 0
            [cmd-kick] => 0
            [cmd-touch] => 0
            [cmd-stats] => 1
            [cmd-stats-job] => 0
            [cmd-stats-tube] => 0
            [cmd-list-tubes] => 3
            [cmd-list-tube-used] => 0
            [cmd-list-tubes-watched] => 0
            [cmd-pause-tube] => 0
            [job-timeouts] => 0 //超時的任務
            [total-jobs] => 0 //任務總數
            [max-job-size] => 65535 //任務字符串大小
            [current-tubes] => 1 //當前的管道數
            [current-connections] => 1 //當前打開的連接數
            [current-producers] => 0 //當前生產者數量
            [current-workers] => 0 //當前消費者數量
            [current-waiting] => 0 //發出reserved指令，但沒有響應的數量
            [total-connections] => 4 //累計鏈接數量
            [pid] => 530 //Beanstalkd進程id
            [version] => 1.10
            [rusage-utime] => 0.003545
            [rusage-stime] => 0.007473
            [uptime] => 105855 //運行時間（秒）
            [binlog-oldest-index] => 0
            [binlog-current-index] => 0
            [binlog-records-migrated] => 0
            [binlog-records-written] => 0
            [binlog-max-size] => 10485760
            [id] => 4199e3eca8bfdea8
            [hostname] => lmmlwendeMacBook-Air.local
        )
)

當前的管道列表

$listTubes = $pheanstalk->listTubes();

查看管道的詳細信息

$stats = $pheanstalk->statsTube();

返回：

PheanstalkResponseArrayResponse Object
(
    [_name:PheanstalkResponseArrayResponse:private] => OK
    [storage:ArrayObject:private] => Array
        (
            [name] => default //當前管道名
            [current-jobs-urgent] => 0 //當前管道存在優先級的任務數
            [current-jobs-ready] => 0 //當前管道準備就緒的任務書
            [current-jobs-reserved] => 0 //當前管道處于阻塞的任務數
            [current-jobs-delayed] => 0 //當前管道處于延遲狀態的任務數
            [current-jobs-buried] => 0 //當前管道預留的任務數
            [total-jobs] => 0 //當前管道總任務數
            [current-using] => 1 //當前管道生產者數量
            [current-watching] => 1 //當前管道消費者數量
            [current-waiting] => 0 //發出reserved指令，但沒有響應的數量
            [cmd-delete] => 0
            [cmd-pause-tube] => 0
            [pause] => 0
            [pause-time-left] => 0
        )
)

查看任務的詳細信息

$job =  $pheanstalk->watch("default")->reserve();
$job_stats = $pheanstalk->statsJob($job);

返回：

PheanstalkResponseArrayResponse Object
(
    [_name:PheanstalkResponseArrayResponse:private] => OK
    [storage:ArrayObject:private] => Array
        (
            [id] => 1 //任務job ID
            [tube] => test //所處管道
            [state] => reserved //當前狀態
            [pri] => 1024 //任務優先級（默認1024）
            [age] => 469 //任務存活時間（秒）
            [delay] => 0 //任務延遲時間（秒）
            [ttr] => 60 //任務執行時間
            [time-left] => 59 //任務在reserve狀態維持的秒數
            [file] => 0 // binlog-4 默認-0
            [reserves] => 2 //總共reserve次數
            [timeouts] => 0 //任務超時次數
            [releases] => 0 //重設任務次數
            [buries] => 0 //預留次數
            [kicks] => 0 //釋放預留任務次數
        )
)

查看任務的詳細信息（通過ID）

$job =  $pheanstalk->peek(1);
$job_stats = $pheanstalk->statsJob($job);

指定需要使用的管道

$tube = $pheanstalk->useTube("default");

向管道插入數據

$tube = $pheanstalk->useTube("default");
$put = $tube->put(
    "hello, beanstalk", // 任務內容
    1024, // 任務的優先級
    10,  // 不等待直接放到ready隊列中
    60 // 處理任務的時間
);

或者：

$pheanstalk->putInTube("default",  "test1", 1024, 10, 60);

監聽管道

$tube =  $pheanstalk->watch("user");

去除不需要監聽的管道

$tube =  $pheanstalk->watch("user")->ignore("default");

以堵塞的方式監聽管道

$job =  $pheanstalk->watch("user")->reserve(4); //堵塞時間為4秒

列出所有已經監聽的管道

$pheanstalk->listTubesWatched();

watch + reserve 方法

$pheanstalk->reserveFromTube("default")

刪除當前任務

$job =  $pheanstalk->watch("default")->reserve();
$pheanstalk->delete($job);

將當前任務重新放入管道

$job =  $pheanstalk->watch("default")->reserve();
$pheanstalk->release($job);

為任務續命（當處理任務的時間小于當前任務執行時間時）

$job =  $pheanstalk->watch("default")->reserve();
$pheanstalk->touch($job);
//TODO

將任務預留

$job =  $pheanstalk->watch("default")->reserve();
$pheanstalk->bury($job);

將預留任務釋放（變為reday狀態）

$job = $pheanstalk->peekBuried("default");
$pheanstalk->kickJob($job);

批量將預留任務釋放

$pheanstalk->userTube("default")->kick(999); //將id小于999的預留任務全部釋放

讀取當前準備就緒的任務（ready）

$job = $pheanstalk->peekReady("default");

讀取當前處于延遲狀態的任務（delayed）

$job = $pheanstalk->peekDelayed("default");

對管道設置延遲

$pheanstalk->pauseTube("default", 100); //設置100秒延遲

取消對管道的延遲

$pheanstalk->resumeTube("default");