Parallel management tool pssh

Parallel management tool psshpssh is a simple tool for sending commands to multiple servers concurrently on the character interface for execution. Suitable for sending the same command (and observe the output) to a large number of servers in the cluster at a time. 1. install a to googlecode to find the latest installation package http: codegooglecom parallel management tool pssh is a simple character interface that concurrently sends commands to multiple servers for execution. Suitable for sending the same command (and observe the output) to a large number of servers in the cluster at a time. 1. install a. find the latest installation package in google code. http://code.google.com/p/parallel-ssh/downloads/listBash Code $ wget http://code.google.com/p/parallel-ssh/downloads/detail?name=pssh-2.3.1.tar.gz&can=2&q= Pssh is written in python, so download and unzip, install python installation module installation method Bash code $ tar-xf pssh-2.3.1.tar.gz $ cd pssh-2.3.1 # python setup. py install 2. for ease of use, if you do not need to enter the password during pssh, you need to generate the rsa key and copy it to the machine that requires remote management. Bash Code # key-gen always press enter to generate/root /. ssh/id_rsa.pub copy and add it to the authorized file Bash code # ssh-copy-id-I/root /. ssh/id_rsa.pub root@192.168.16.X 3. create a hosts.txt file and add the Bash Code [root @ localhost script] # cat hosts.txt 127.0.0.1 192.168.0.8 192.168.0.51 192.168.1.114 192.168.1.115 to the remotely managed machine. run the following command: java code [root @ localhost script] # pssh-I-h hosts.txt "uptime" [1] 10:49:19 [FAILURE] 127.0.0.1 22 pinned Ed error code of 255 [2] 10:49:19 [SUCCESS] 192.168.1.115 22 10:49:40 up 14 days, 10:49:19, 8 users, load average: 0.00, 0.00, 0.00 [3] 02:49:35 [SUCCESS] 192.168.1.114 22 up 14 days, 9 users, load average: 0.11, 0.04, 0.01 [4] 10:49:19 [SUCCESS] 192.168.0.8 22 02:39:21 up 4 days, 29 min, 6 users, load average: 0.00, 0.02, 0.03 [5] 10:49:19 [SUCCESS] 192.168.0.51 22 10:50:14 up 8 days, 38 min, 20 users, load average: 0.03, 0.06, 0.06