1、下载和安装
可以在官网http://sourceforge.net/projects/pdsh/下载。
wget http://nchc.dl.sourceforge.net/project/pdsh/pdsh/pdsh-2.26/pdsh-2.26.tar.bz2 tar jxvf pdsh-2.26.tar.bz2 cd pdsh-2.26 ./configure make make install
2、安装好以后，可以先看下pdsh的参数
hadoop@master:~/pdsh-2.26$ pdsh --help pdsh: invalid option -- '-' 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 -w host,host,... set target node list on command line -x host,host,... set node exclusion list on command line -R name set rcmd module to name -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: rsh,exec (default: rsh)
3、远程执行命令
hadoop@master:~/pdsh-2.26$ pdsh -d -R exec -w hadoop@slave[1-4] ssh -x %h "hostname" slave3: slave3 slave2: slave2 slave1: slave1 slave4: slave4 Connect time: Avg: 0 sec, Min: 0 sec, Max: 0 sec Command time: Avg: 1 sec, Min: 1 sec, Max: 1 sec Failures: 0
需要执行其他命令的时候，只需要把引号里面的换成其他命令就行了。