在centos7中分布式部署pyspider

503次阅读  |  发布于5年以前

1.搭建环境:

系统版本:Linux centos-linux.shared 3.10.0-123.el7.x86_64 #1 SMP Mon Jun 30 12:09:22 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

python版本:Python 3.5.1

1.1.搭建python3环境:

本人在尝试过后选择集成环境Anaconda

1.1.1.编译


    # 下载依赖
    yum install -y ncurses-devel openssl openssl-devel zlib-devel gcc make glibc-devel libffi-devel glibc-static glibc-utils sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-deve
    # 下载python版本
    wget https://www.python.org/ftp/python/3.5.1/Python-3.5.1.tgz
    # 或者使用国内源
    wget http://mirrors.sohu.com/python/3.5.1/Python-3.5.1.tgz
    mv Python-3.5.1.tgz /usr/local/src;cd /usr/local/src
    # 解压
    tar -zxf Python-3.5.1.tgz;cd Python-3.5.1
    # 编译安装
    ./configure --prefix=/usr/local/python3.5 --enable-shared
    make && make install
    # 建立软链接
    ln -s /usr/local/python3.5/bin/python3 /usr/bin/python3
    echo "/usr/local/python3.5/lib" > /etc/ld.so.conf.d/python3.5.conf
    ldconfig
    # 验证python3
    python3
    # Python 3.5.1 (default, Oct 9 2016, 11:44:24)
    # [GCC 4.8.5 20150623 (Red Hat 4.8.5-4)] on linux
    # Type "help", "copyright", "credits" or "license" for more information.
    # >>>
    # pip
    /usr/local/python3.5/bin/pip3 install --upgrade pip
    ln -s /usr/local/python3.5/bin/pip /usr/bin/pip
    # 本人在安装时出现问题 将pip重装
    wget https://bootstrap.pypa.io/get-pip.py --no-check-certificate
    python get-pip.py

1.1.2.集成环境anaconda


    # 集成环境anaconda(推荐)
    wget https://repo.continuum.io/archive/Anaconda3-4.2.0-Linux-x86_64.sh
    # 直接安装即可
    ./Anaconda3-4.2.0-Linux-x86_64.sh
    # 若出错,可能是解压失败
    yum install bzip2

1.2.安装mariaDB


    # 安装
    yum -y install mariadb mariadb-server
    # 启动
    systemctl start mariadb
    # 设置为开机启动
    systemctl enable mariadb
    # 配置密码 默认为空
    mysql_secure_installation
    # 登录
    mysql -u root -p
    # 创建一个用户 自己设定账户密码
    CREATE USER 'user_name'@'localhost' IDENTIFIED BY 'user_pass';
    GRANT ALL PRIVILEGES ON *.* TO 'user_name'@'localhost' WITH GRANT OPTION;
    CREATE USER 'user_name'@'%' IDENTIFIED BY 'user_pass';
    GRANT ALL PRIVILEGES ON *.* TO 'user_name'@'%' WITH GRANT OPTION;

1.3.安装pyspider

本人使用Anaconda


    # 搭建虚拟环境sbird python版本3.*
    conda create -n sbird python=3*
    # 进入环境
    source activate sbird
    # 安装pyspider
    pip install pyspider
    # 报错 
    # it does not exist. The exported locale is "en_US.UTF-8" but it is not supported
    # 执行 可写入.bashrc
    export LC_ALL=en_US.utf-8
    export LANG=en_US.utf-8
    #ImportError: pycurl: libcurl link-time version (7.29.0) is older than compile-time version (7.49.0)
    conda install pycurl
    # 退出
    source deactivate sbird
    # 若在虚拟机内 出现无法访问localhost:5000 可关闭防火墙
    systemctl stop firewalld.service
    #########直接运行源码==============
    mkdir git;cd git
    # 下载
    git clone https://github.com/binux/pyspider.git
    # 安装
    /root/anaconda3/envs/sbird/bin/python /root/git/pyspider/run.py

其他方法


    # 搭建虚拟环境
    pip install virtualenv
    mkdir python;cd python
    # 创建虚拟环境pyenv3
    virtualenv -p /usr/bin/python3 pyenv3
    # 进入虚拟环境 激活环境
    cd pyenv3/
    source ./bin/activate
    pip install pyspider
    # 若pycurl报错 
    yum install libcurl-devel
    # 继续
    pip install pyspider
    # 关闭
    deactivate

本人推荐用anaconda方式安装

若pyspider运行过程中出现错误,参考anaconda安装部分,至此,访问localhost:5000可看到页面。

1.4.安装Supervisor


    # 安装
    yum install supervisor -y
    # 若无法检索 则添加阿里的epel源
    vim /etc/yum.repos.d/epel.repo
    # 添加以下内容
    [epel]
    name=Extra Packages for Enterprise Linux 7 - $basearch
    baseurl=http://mirrors.aliyun.com/epel/7/$basearch
    http://mirrors.aliyuncs.com/epel/7/$basearch
    failovermethod=priority
    enabled=1
    gpgcheck=0
    gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7

    [epel-debuginfo]
    name=Extra Packages for Enterprise Linux 7 - $basearch - Debug
    baseurl=http://mirrors.aliyun.com/epel/7/$basearch/debug
    http://mirrors.aliyuncs.com/epel/7/$basearch/debug
    failovermethod=priority
    enabled=0
    gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
    gpgcheck=0

    [epel-source]
    name=Extra Packages for Enterprise Linux 7 - $basearch - Source
    baseurl=http://mirrors.aliyun.com/epel/7/SRPMS
    http://mirrors.aliyuncs.com/epel/7/SRPMS
    failovermethod=priority
    enabled=0
    gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
    gpgcheck=0
    # 安装
    yum install supervisor -y
    # 测试是否安装成功
    echo_supervisord_conf

1.4.1.Supervisor用法


    supervisord   #supervisor的服务器端部分 启动
    supervisorctl  #启动supervisor的命令行窗口
    # 假设创建进程pyspider01
    vim /etc/supervisord.d/pyspider01.ini
    # 写入以下内容
    [program:pyspider01]

    command   = /root/anaconda3/envs/sbird/bin/python /root/git/pyspider/run.py
    directory  = /root/git/pyspider
    user     = root
    process_name = %(program_name)s
    autostart  = true
    autorestart = true
    startsecs  = 3

    redirect_stderr     = true
    stdout_logfile_maxbytes = 500MB
    stdout_logfile_backups = 10
    stdout_logfile     = /pyspider/supervisor/pyspider01.log
    # 重载
    supervisorctl reload
    # 启动
    supervisorctl start pyspider01
    # 也可这样启动
    supervisord -c /etc/supervisord.conf
    # 查看状态
    supervisorctl status
    # output 
    pyspider01            RUNNING  pid 4026, uptime 0:02:40
    # 关闭
    supervisorctl shutdown

1.5.安装redis


    # 消息队列采用redis
    mkdir download;cd download
    wget http://download.redis.io/releases/redis-3.2.4.tar.gz
    tar xzf redis-3.2.4.tar.gz
    cd redis-3.2.4
    make
    # 或者直接yum安装
    yum -y install redis
    # 启动
    systemctl start redis.service
    # 重启
    systemctl restart redis.service
    # 停止
    systemctl stop redis.service
    # 查看状态
    systemctl status redis.service
    # 更改文件/etc/redis.conf
    vim /etc/redis.conf
    # 更改内容
    daemonize no 改为 daemonize yes
    bind 127.0.0.1 改为 bind 10.211.55.22(当前服务器ip)
    # 重启redis
    systemctl restart redis.service

1.6.关于自启动


    # Supervisor添加到自启动服务
    systemctl enable supervisord.service
    # redis添加到自启动服务
    systemctl enable redis.service
    # 关闭防火墙自启动
    systemctl disable firewalld.service

至此,pyspider单个服务器运行环境搭建且部署完毕,启动localhost:5000进入web界面。

也可编写脚本运行,在/pyspider/supervisor/pyspider01.log查看运行状态。

2.分布式部署

刚才配置的服务器,将其命名为centos01,按照这样的配置,再分别部署两台centos02、centos03。

如下:

服务器名称 ip 说明


    centos01 10.211.55.22 redis,mariaDB, scheduler
    centos02 10.211.55.23 fetcher, processor, result_worker,phantomjs
    centos03 10.211.55.24 fetcher, processor,,result_worker,webui


2.1.centos01

进入服务器centos01,经过第一步,基本环境已经搭好,首先编辑配置文件/pyspider/config.json


    {
     "taskdb": "mysql+taskdb://user_name:user_pass@10.211.55.22:3306/taskdb",
     "projectdb": "mysql+projectdb://user_name:user_pass@10.211.55.22:3306/projectdb",
     "resultdb": "mysql+resultdb://user_name:user_pass@10.211.55.22:3306/resultdb",
     "message_queue": "redis://10.211.55.22:6379/db",
     "logging-config": "/pyspider/logging.conf",
     "phantomjs-proxy":"10.211.55.23:25555",
     "webui": {
      "username": "",
      "password": "",
      "need-auth": false,
      "host":"10.211.55.24",
      "port":"5000",
      "scheduler-rpc":"http:// 10.211.55.22:5002",
      "fetcher-rpc":"http://10.211.55.23:5001"
     },
     "fetcher": {
      "xmlrpc":true,
      "xmlrpc-host": "0.0.0.0",
      "xmlrpc-port": "5001"
     },
     "scheduler": {
      "xmlrpc":true,
      "xmlrpc-host": "0.0.0.0",
      "xmlrpc-port": "5002"
     }
    }

尝试运行下:


    /root/anaconda3/envs/sbird/bin/python /root/git/pyspider/run.py -c /pyspider/config.json scheduler
    # 报错
    ImportError: No module named 'mysql'
    # 下载 mysql-connector-python
    cd ~/git/
    git clone https://github.com/mysql/mysql-connector-python.git
    # 安装
    source activate sbird
    cd mysql-connector-python
    python setup.py install
    # 安装redis
    pip install redis
    source deactivate
    # 运行
    /root/anaconda3/envs/sbird/bin/python /root/git/pyspider/run.py -c /pyspider/config.json scheduler
    # 输出 ok
    [I 161010 15:57:25 scheduler:644] scheduler starting...
    [I 161010 15:57:25 scheduler:779] scheduler.xmlrpc listening on 0.0.0.0:5002
    [I 161010 15:57:25 scheduler:583] in 5m: new:0,success:0,retry:0,failed:0

运行成功后,可直接更改/etc/supervisord.d/pyspider01.ini如下:


    [program:pyspider01]

    command   = /root/anaconda3/envs/sbird/bin/python /root/git/pyspider/run.py -c /pyspider/config.json scheduler
    directory  = /root/git/pyspider
    user     = root
    process_name = %(program_name)s
    autostart  = true
    autorestart = true
    startsecs  = 3

    redirect_stderr     = true
    stdout_logfile_maxbytes = 500MB
    stdout_logfile_backups = 10
    stdout_logfile     = /pyspider/supervisor/pyspider01.log
    # 重载
    supervisorctl reload
    # 查看状态
    supervisorctl status

centos01部署完毕。

2.2.centos02

在centos02中,需要运行result_worker、processor、phantomjs、fetcher

分别建立文件:


    /etc/supervisord.d/result_worker.ini

    [program:result_worker]

    command   = /root/anaconda3/envs/sbird/bin/python /root/git/pyspider/run.py -c /pyspider/config.json result_worker
    directory  = /root/git/pyspider
    user     = root
    process_name = %(program_name)s
    autostart  = true
    autorestart = true
    startsecs  = 3

    redirect_stderr     = true
    stdout_logfile_maxbytes = 500MB
    stdout_logfile_backups = 10
    stdout_logfile     = /pyspider/supervisor/result_worker.log
    /etc/supervisord.d/processor.ini

    [program:processor]

    command   = /root/anaconda3/envs/sbird/bin/python /root/git/pyspider/run.py -c /pyspider/config.json processor
    directory  = /root/git/pyspider
    user     = root
    process_name = %(program_name)s
    autostart  = true
    autorestart = true
    startsecs  = 3

    redirect_stderr     = true
    stdout_logfile_maxbytes = 500MB
    stdout_logfile_backups = 10
    stdout_logfile     = /pyspider/supervisor/processor.log
    /etc/supervisord.d/phantomjs.ini

    [program:phantomjs]

    command   = /pyspider/phantomjs --config=/pyspider/pjsconfig.json /pyspider/phantomjs_fetcher.js 25555
    directory  = /root/git/pyspider
    user     = root
    process_name = %(program_name)s
    autostart  = true
    autorestart = true
    startsecs  = 3

    redirect_stderr     = true
    stdout_logfile_maxbytes = 500MB
    stdout_logfile_backups = 10
    stdout_logfile     = /pyspider/supervisor/phantomjs.log
    /etc/supervisord.d/fetcher.ini

    [program:fetcher]

    command   = /root/anaconda3/envs/sbird/bin/python /root/git/pyspider/run.py -c /pyspider/config.json fetcher
    directory  = /root/git/pyspider
    user     = root
    process_name = %(program_name)s
    autostart  = true
    autorestart = true
    startsecs  = 3

    redirect_stderr     = true
    stdout_logfile_maxbytes = 500MB
    stdout_logfile_backups = 10
    stdout_logfile     = /pyspider/supervisor/fetcher.log

在pyspider目录中建立pjsconfig.json


    {
     /*--ignore-ssl-errors=true */
     "ignoreSslErrors": true,

     /*--ssl-protocol=true */
     "sslprotocol": "any",

     /* Same as: --output-encoding=utf8 */
     "outputEncoding": "utf8",

     /* persistent Cookies. */
     /*cookiesfile="e:/phontjscookies.txt",*/
     cookiesfile="pyspider/phontjscookies.txt",

     /* load image */
     autoLoadImages = false
    }

下载phantomjs至/pyspider/文件夹,将git/pyspider/pyspider/fetcher/phantomjs_fetcher.js复制到phantomjs_fetcher.js


    # 重载
    supervisorctl reload
    # 查看状态
    supervisorctl status
    # output
    fetcher             RUNNING  pid 3446, uptime 0:00:07
    phantomjs            RUNNING  pid 3448, uptime 0:00:07
    processor            RUNNING  pid 3447, uptime 0:00:07
    result_worker          RUNNING  pid 3445, uptime 0:00:07

centos02部署完毕。

2.3.centos03

部署这三个进程fetcher, processor, result_worker和centos02 一样,本服务器主要是在前面的基础上加上webui

建立文件:


    /etc/supervisord.d/webui.ini

    [program:webui]

    command   = /root/anaconda3/envs/sbird/bin/python /root/git/pyspider/run.py -c /pyspider/config.json webui
    directory  = /root/git/pyspider
    user     = root
    process_name = %(program_name)s
    autostart  = true
    autorestart = true
    startsecs  = 3

    redirect_stderr     = true
    stdout_logfile_maxbytes = 500MB
    stdout_logfile_backups = 10
    stdout_logfile     = /pyspider/supervisor/webui.log
    # 重载
    supervisorctl reload
    # 查看状态
    supervisorctl status
    # output
    fetcher             RUNNING  pid 2724, uptime 0:00:07
    processor            RUNNING  pid 2725, uptime 0:00:07
    result_worker          RUNNING  pid 2723, uptime 0:00:07
    webui              RUNNING  pid 2726, uptime 0:00:07


3.总结

访问 http://10.211.55.24:5000 即可,尽情爬取吧。

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