大神教你：Lsyncd复制并实时同步到远程服务器

    请参阅：《CentOS7 Configuring Rsync  Server》。

$ yum install -y gcc gcc-c++ lua lua-devel cmake libxml2 libxml2-devel

$ wget https://github.com/axkibe/lsyncd/archive/release-2.2.2.tar.gz
$ tar xvf release-2.2.2.tar.gz
$ cd lsyncd-release-2.2.2
$ cmake -DCMAKE_INSTALL_PREFIX=/usr/local/lsyncd
$ make && make install
$ ln -s /usr/local/lsyncd/bin/lsyncd /usr/bin/lsyncd

安装过程可能报错：

-- Configuring incomplete, errors occurred!

$ vim /etc/lsyncd.conf

settings {
    logfile = "/var/log/lsyncd.log",          --日志路径
    statusFile = "/var/log/lsyncd.status",    --状态文件
    pidfile = "/var/run/lsyncd.pid",          --pid文件路径
    statusInterval = 1,                       --状态文件写入最短时间
    nodaemon = false,                         --daemon运行
    maxProcesses = 1,                         --最大进程
    maxDelays = 1,                            --最大延迟
}
sync {
    default.rsyncssh,      --默认rsync+ssh,rsync版本需要升级3以上版本
    source = "/apps/www/renwoleblog/",        --源目录
    delete = true,                            --保持完全同步        
    host = "root@10.28.204.66",         
    targetdir = "/apps/www/renwoleblog/bak/", --目标目录
    exclude={                 
             ".txt"            --需排除的文件
    },
rsync = {
    binary = "/usr/bin/rsync", --需先安装好rsync
    archive = true,            --归档
    compress = false,          --压缩
    owner = true,              --属主
    perms = true,              --权限
    whole_file = false
    },
ssh = {
    port = 22
    }
}

sync {
    default.rsync,
    source = "/apps/www/renwoleblog/",
    target = "/apps/www/renwoleblog/bak/",
}

sync {
    default.rsync,
    source    = "/apps/www/renwoleblog/",
    target    = "renwole@10.28.204.65::renwolecom",
    delete="true",
    exclude = { ".bak*" },
    delay = 30,
    init = false,
    rsync = {
    binary = "/usr/bin/rsync",
    archive = true,
    compress = true,
    verbose   = true,
    perms = true,
    password_file = "/etc/rsync.password",
    _extra    = {"--bwlimit=200"}
    }
}

--        # 注释符
settings  # 是全局配置
sync      # 定义同步参数
rsync     # 定义同步文件参数
ssh       # 定义服务器远程端口

$ vim /etc/sysconfig/lsyncd

添加如下内容：

LSYNCD_OPTIONS="/etc/lsyncd.conf"

创建启动文件：

$ vim /usr/lib/systemd/system/lsyncd.service

添加如下内容：

[Unit]
Description=Live Syncing (Mirror) Daemon
After=network.target

[Service]
Type=simple
EnvironmentFile=-/etc/sysconfig/lsyncd
ExecStart=/usr/local/lsyncd/bin/lsyncd -nodaemon $LSYNCD_OPTIONS

[Install]
WantedBy=multi-user.target

$ systemctl start lsyncd
$ systemctl enable lsyncd

接下来你就可以往源服务器/apps/www/renwoleblog/内上传任意文件，完成后立刻就会同步到客户端 10.28.204.66 /apps/www/renwoleblog/bak/目录内，也可以查看服务端的lsyncd日志文件分析是否同步成功。例如：

[root@RenwoleServer ~] $ cat /var/log/lsyncd.log

...
Fri Dec 22 01:19:22 2017 Normal: Calling rsync with filter-list of new/modified files/dirs
/PCHunter_renwole.com.tar.gz
/
Fri Dec 22 01:19:24 2017 Normal: Finished (list): 0
Fri Dec 22 01:19:32 2017 Normal: Calling rsync with filter-list of new/modified files/dirs
/PCHunter_renwole.com.tar.gz
/
Fri Dec 22 01:19:34 2017 Normal: Finished (list): 0
Fri Dec 22 01:19:34 2017 Normal: Calling rsync with filter-list of new/modified files/dirs
/PCHunter_renwole.com.tar.gz
/
Fri Dec 22 01:19:36 2017 Normal: Finished (list): 0