142.4. Gearman

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原文链接：https://yq.aliyun.com/articles/307657

文章标签：

#php #网络 #python

本文介绍如何在CentOS和Ubuntu上部署Gearman分布式任务队列系统，并配置相关参数。此外，还提供了安装和配置Gearman PHP扩展的方法。

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142.4.1. Getting Started with Gearman

142.4.1.1. CentOS

rpm -Uvh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm

yum install gearmand -y
chkconfig gearmand on
service gearmand start

配置启动参数

			
cat >> /etc/sysconfig/gearmand <<EOF

OPTIONS="--log-file=/var/log/gearman.log --threads=512"
EOF

142.4.1.2. Ubuntu

$ apt-cache search gearman | grep gearman
drizzle-plugin-gearman-udf - Gearman User Defined Functions for Drizzle
drizzle-plugin-logging-gearman - Gearman Logging for Drizzle
gearman - Distributed job queue
gearman-job-server - Job server for the Gearman distributed job queue
gearman-server - Gearman distributed job server and Perl interface
gearman-tools - Tools for the Gearman distributed job queue
libgearman-client-async-perl - asynchronous client for the Gearman distributed job system
libgearman-client-perl - client for the Gearman distributed job system
libgearman-dbg - Debug symbols for the Gearman Client Library
libgearman-dev - Development files for the Gearman Library
libgearman-doc - API Documentation for the Gearman Library
libgearman6 - Library providing Gearman client and worker functions
mod-gearman-doc - Documentation and examples for Mod-Gearman
mod-gearman-module - Nagios/Icinga event broker module for Mod-Gearman
mod-gearman-tools - Tools for mod-gearman
mod-gearman-worker - Worker agent for Mod-Gearman
python-gearman - Python interface to the Gearman system
python-gearman.libgearman - Python wrapper of libgearman
python3-gearman.libgearman - Python 3 wrapper of libgearman

142.4.1.3. 防火墙设置

查看gearman工作端口

# grep gearman /etc/services
gearman         4730/tcp                # Gearman Job Queue System
gearman         4730/udp                # Gearman Job Queue System

iptables 设置

iptables -A INPUT -m state --state NEW -m tcp -p tcp --dport 4730 -j ACCEPT

142.4.2. gearman

控制台 A

gearman -w -f wc -- wc -l

控制台 B

		
#wc -l < /etc/passwd
30

# wc -l < /etc/passwd
30

停止 gearman 进程再试

		
# /etc/init.d/gearmand stop
Stopping gearmand:                                         [  OK  ]

[root@haproxy ~]# gearman -f wc < /etc/passwd
gearman:gearman_client_run_tasks:gearman_connection_flush:could not connect

压力测试

		
find / -type f | awk '{ print "gearman -f wc < " $1 }' | bash

142.4.3. Gearman PHP Extension

		
rpm -Uvh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm

yum install libgearman-devel
pecl install channel://pecl.php.net/gearman-0.8.3

cat >> /srv/php/etc/conf.d/gearman.ini <<EOF
extension=gearman.so
EOF

测试安装

# php -r 'printf("%s \r\n", gearman_version());'
0.14

原文出处：Netkiller 系列手札
本文作者：陈景峯
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