Beanstalkd - 訪問同一隊列的多個工作人員

Question

我想在我的部署過程中使用Beanstalkd。這個想法與IGN使用的想法類似（https://github.com/ign/brood）。在任何時候，我都可能想要觸發兩個客戶端下載最新的代碼並重新啓動Apache。是否有可能讓多個工作人員（每個客戶端上一個工作人員）處理相同的隊列？作爲解決方法，我可以爲每個客戶端創建一個隊列。

Answer 1

每個客戶端的特定隊列，用於該客戶端的命令。讓他們都聽自己的隊列，並根據需要發送簡單的「重新啓動」消息給多少個客戶端。

我會有一個bash腳本啓動作業，並保持它運行執行實際重新啓動。你的腳本只需要

1. 刪除「重新啓動」的消息（否則會得到同樣的消息，下一次）
2. exit(90);返回值由猛砸拿起劇本

腳本，並執行操作。

#!/bin/bash 

# runBeanstalkd-worker.sh 

# a shell script that keeps looping until an exit code is given 
# if it does an exit(0), restart after a second - or if it's a declared error 
# if we've restarted in a planned fashion, we don't bother with any pause 
# and for one particular code, exit the script entirely. 
# The numbers 97, 98, 99 must match what is returned from the PHP script 

nice php -q -f ./cli-beanstalk-worker.php -- $@ 
ERR=$? 

## Possibilities 
# 90 - restart apache 
# 97 - planned pause/restart 
# 98 - planned restart 
# 99 - planned stop, exit. 
# 0  - unplanned restart (as returned by "exit;") 
#  - Anything else is also unplanned paused/restart 

# 90 - restart apache 
if [ $ERR -eq 90 ] 
then 
    service apache restart 
    sleep 5; 
    exec $0 $@; 
fi 

if [ $ERR -eq 97 ] 
then 
    # a planned pause, then restart 
    echo "97: PLANNED_PAUSE - wait 1"; 
    sleep 1; 
    exec $0 $@; 
fi 

#### other actions, like planned-restart, or shutdown 

# unplanned exit, pause, and restart 
echo "unplanned restart: err:" $ERR; 
echo "sleeping for 1 sec" 
sleep 1 

exec $0 $@