集群运维命令pdsh

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作用

  批量地在集群机器上执行命令，类似于pgm命令。另外，pdsh还附带了pdcp命令，此命令可以将本地文件批量复制到远程的多台主机上；

安装

yum install pdsh

用法

Usage: pdsh [-options] command ...
-S                return largest of remote command return values
-h                output usage menu and quit
-V                output version information and quit
-q                list the option settings and quit
-b                disable ^C status feature (batch mode)
-d                enable extra debug information from ^C status
-l user           execute remote commands as user
-t seconds        set connect timeout (default is 10 sec)
-u seconds        set command timeout (no default)
-f n              use fanout of n nodes  //同时连接到远程机器的个数
-w host,host,...  set target node list on command line   //执行命令的机器列表
-x host,host,...  set node exclusion list on command line  //黑名单，排除掉的机器列表
-R name           set rcmd module to name  //指定使用的协议，如ssh、rsh等
-M name,...       select one or more misc modules to initialize first
-N                disable hostname: labels on output lines
-L                list info on all loaded modules and exit
available rcmd modules: ssh,exec (default: ssh)

参考：

1. https://blog.51cto.com/ixdba/1550184
2. 使用说明：http://www.voidcn.com/article/p-bnuhntse-ev.html