Beanstalkd介绍
什么是Beanstalkd
Beanstalk，一个高性能、轻量级的分布式内存队列系统，最初设计的目的是想通过后台异步执行耗时的任务来降低高容量Web应用系统的页面访问延迟，支持过有9.5 million用户的Facebook Causes应用。
后来开源，现在有PostRank大规模部署和使用，每天处理百万级任务。Beanstalkd是典型的类Memcached设计，协议和使用方式都是同样的风格，所以使用过memcached的用户会觉得Beanstalkd似曾相识。
Beanstalkd运行流程
job典型的生命周期
put reserve delete
-----> [READY] ---------> [RESERVED] --------> *poof*job可能的状态迁移
put with delay release with delay
----------------> [DELAYED] <------------.
| |
kick | (time passes) |
| |
put v reserve | delete
-----------------> [READY] ---------> [RESERVED] --------> *poof*
^ ^ | |
| \ release | |
| `-------------' |
| |
| kick |
| |
| bury |
[BURIED] <---------------'
|
| delete
`--------> *poof*Beanstalkd安装
安装略过，如需请参考 点击参考
注：需要安装Composer，教程链接 Composer安装方法
Pheanstalk安装
用于操作Beanstalkd 的PHP 第三方库，安装略过，如需请参考 点击参考
Pheanstalk操作
连接Beanstalkd
<?php
require __DIR__ . '/vendor/autoload.php';
use Pheanstalk\Pheanstalk;
/**
* 实例化beanstalk
* 参数依次为：ip地址 端口号默认11300 连接超时时间 是否长连接
*/
$pheanstalk = new Pheanstalk('127.0.0.1', 11300, 3, false);
?>Beanstalkd状态方法
Beanstalkd状态
$stats = $pheanstalk->stats();返回：
Pheanstalk\Response\ArrayResponse Object
(
[_name:Pheanstalk\Response\ArrayResponse:private] => OK
[storage:ArrayObject:private] => Array
(
[current-jobs-urgent] => 0 //当前存在优先级的任务数
[current-jobs-ready] => 0 //当前准备就绪的任务数
[current-jobs-reserved] => 0 //当前处于阻塞的任务数
[current-jobs-delayed] => 0 //当前处于延迟状态的任务数
[current-jobs-buried] => 0 //当前预留的任务数
[cmd-put] => 0 //cmd命令为累计运行次数
[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 //超时的任务
[total-jobs] => 0 //任务总数
[max-job-size] => 65535 //任务字符串大小
[current-tubes] => 1 //当前的管道数
[current-connections] => 1 //当前打开的连接数
[current-producers] => 0 //当前生产者数量
[current-workers] => 0 //当前消费者数量
[current-waiting] => 0 //发出reserved指令，但没有响应的数量
[total-connections] => 4 //累计链接数量
[pid] => 530 //Beanstalkd进程id
[version] => 1.10
[rusage-utime] => 0.003545
[rusage-stime] => 0.007473
[uptime] => 105855 //运行时间（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
)
)当前的管道列表
$listTubes = $pheanstalk->listTubes();查看管道的详细信息
$stats = $pheanstalk->statsTube();返回：
Pheanstalk\Response\ArrayResponse Object
(
[_name:Pheanstalk\Response\ArrayResponse:private] => OK
[storage:ArrayObject:private] => Array
(
[name] => default //当前管道名
[current-jobs-urgent] => 0 //当前管道存在优先级的任务数
[current-jobs-ready] => 0 //当前管道准备就绪的任务书
[current-jobs-reserved] => 0 //当前管道处于阻塞的任务数
[current-jobs-delayed] => 0 //当前管道处于延迟状态的任务数
[current-jobs-buried] => 0 //当前管道预留的任务数
[total-jobs] => 0 //当前管道总任务数
[current-using] => 1 //当前管道生产者数量
[current-watching] => 1 //当前管道消费者数量
[current-waiting] => 0 //发出reserved指令，但没有响应的数量
[cmd-delete] => 0
[cmd-pause-tube] => 0
[pause] => 0
[pause-time-left] => 0
)
)查看任务的详细信息
$job = $pheanstalk->watch('default')->reserve();
$job_stats = $pheanstalk->statsJob($job);返回：
Pheanstalk\Response\ArrayResponse Object
(
[_name:Pheanstalk\Response\ArrayResponse:private] => OK
[storage:ArrayObject:private] => Array
(
[id] => 1 //任务job ID
[tube] => test //所处管道
[state] => reserved //当前状态
[pri] => 1024 //任务优先级（默认1024）
[age] => 469 //任务存活时间（秒）
[delay] => 0 //任务延迟时间（秒）
[ttr] => 60 //任务执行时间
[time-left] => 59 //任务在reserve状态维持的秒数
[file] => 0 // binlog-4 默认-0
[reserves] => 2 //总共reserve次数
[timeouts] => 0 //任务超时次数
[releases] => 0 //重设任务次数
[buries] => 0 //预留次数
[kicks] => 0 //释放预留任务次数
)
)查看任务的详细信息（通过ID）
$job = $pheanstalk->peek(1);
$job_stats = $pheanstalk->statsJob($job);Beanstalkd生产者方法
指定需要使用的管道
$tube = $pheanstalk->useTube('default');向管道插入数据
$tube = $pheanstalk->useTube('default');
$put = $tube->put(
'hello, beanstalk', // 任务内容
1024, // 任务的优先级
10, // 不等待直接放到ready队列中
60 // 处理任务的时间
);或者：
$pheanstalk->putInTube('default', 'test1', 1024, 10, 60);Beanstalkd消费者方法
监听管道
$tube = $pheanstalk->watch('user');去除不需要监听的管道
$tube = $pheanstalk->watch('user')->ignore('default');以堵塞的方式监听管道
$job = $pheanstalk->watch('user')->reserve(4); //堵塞时间为4秒列出所有已经监听的管道
$pheanstalk->listTubesWatched();watch + reserve 方法
$pheanstalk->reserveFromTube('default')删除当前任务
$job = $pheanstalk->watch('default')->reserve();
$pheanstalk->delete($job);将当前任务重新放入管道
$job = $pheanstalk->watch('default')->reserve();
$pheanstalk->release($job);为任务续命（当处理任务的时间小于当前任务执行时间时）
$job = $pheanstalk->watch('default')->reserve();
$pheanstalk->touch($job);
//TODO将任务预留
$job = $pheanstalk->watch('default')->reserve();
$pheanstalk->bury($job);将预留任务释放（变为reday状态）
$job = $pheanstalk->peekBuried('default');
$pheanstalk->kickJob($job);批量将预留任务释放
$pheanstalk->userTube('default')->kick(999); //将id小于999的预留任务全部释放读取当前准备就绪的任务（ready）
$job = $pheanstalk->peekReady('default');读取当前处于延迟状态的任务（delayed）
$job = $pheanstalk->peekDelayed('default');对管道设置延迟
$pheanstalk->pauseTube('default', 100); //设置100秒延迟取消对管道的延迟
$pheanstalk->resumeTube('default');