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Tuesday, May 22, 2012

Cloud Platform SSH

Cloud Platform SSH
Posted by wen xie at 5:57 PM 0 comments
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Thursday, May 10, 2012

Parallel Command Execution

Parallel Command Execution

比较

基本信息
语言版本日期许可网站
#pdsh C 2.28 2012-02-11 GNU GPL v2 pdsh
#clusterssh Perl 4.01_01 2011-12-09 GNU GPL ClusterSSH
#mussh Bourne-Again Shell 1.0 2011-11-03 GNU GPL MUltihost SSH Wrapper
#pssh Python 2.3.1 2012-02-02 New BSD License PSSH
#sshpt Python 2.5+ 1.2.0 2011-08-14 GNU GPL v3 SSH Power Tool
#tentakel Python 2.2 2005-03-20 unknown tentakel
#massh Bourne-Again Shell 2.0-58 2011-07-29 GNU GPL Massh
#PyDSH Python 2.7 0.6 2011-09-20 GNU GPL The Python Distributed Shell
#ClusterShell Python 2.4+ 1.6 2012-04-08 CeCILL-C ClusterShell
#xargs C n/a n/a GNU GPL n/a
#GNU Parallel Perl 20120422 2012-04-22 GNU GPL GNU Parallel
#PPSS Bourne-Again Shell 2.97 2011-12-30 GNU GPL v3 Parallel Processing Shell Script

基本功能
分布命令执行 分布文件复制 主机范围声明 主机分组 支持其它连接协议 远程执行本地脚本 SSH Key管理 输出格式化 支持密码登录
#pdsh Yes Yes(1)(2) Yes(3) Yes(3) Yes(4) No No Yes(5) No
#clusterssh - - - - - - - - -
#mussh Yes No No Yes(6) No Yes Yes(7) Yes No
#pssh Yes Yes(8) No Yes(6) No No No Yes(9) No
#sshpt Yes Yes(12) No Yes(6) No Yes(11) No Yes(10) Yes
#tentakel - - - - - - - - -
#massh Yes Yes(15) Yes(13) Yes(13)(6) No Yes No Yes(14) No
#PyDSH Yes Yes Yes Yes(6) Yes(16) No Yes(17) No No
#ClusterShell(18) Yes Yes Yes(20) Yes(20) No No No Yes(19) No
#xargs Yes
#GNU Parallel Yes
#PPSS Yes

1. 用pdcp复制文件要求两端服务器都要安装pdcp
2. rpdcp用于反向复制文件
3. 加载misc类型的模块，生成主机列表和过滤
4. 加载rcmd类型的模块，实现不同方式的远程连接
5. 用dshbak命令将输出内容按主机分组
6. 加载主机列表文件
7. 使用ssh-agent
8. prsync 同步文件, pscp 复制文件, pslurp 下载文件
9. 默认只显示一个最终的执行结果，没有屏幕输出
10. 生成cvs报告
11. 远程执行本地脚本其实是通过sftp复制过去然后执行
12. 只能复制到目标服务器，不能下载文件
13. 依赖该作者自己开发的ambit脚本，生成主机名列表和分组。也可加载主机列表文件
14. terse 只显示执行结果，worked 只显示成功的主机名，bombed 只显示失败的主机名
15. 能上传、下载一个文件
16. 支持RSH, Telnet
17. 可以生成、安装、卸载SSH key
18. 指clush,clubak等命令
19. 用clubak命令将输出内容按主机分组
20. 用nodeset工具


pdsh

介绍：

Pdsh is a high-performance, parallel remote shell utility. It uses a sliding window of threads to execute remote commands, conserving socket resources while allowing some connections to timeout if needed. It was originally written as a replacement for IBM's DSH on clusters at LLNL.

The core functionality of pdsh is supplemented by many available dynamically loadable modules. The modules may implement a new connection protocol, target host filtering (e.g. removing hosts that are "down" from the target host list) and/or other host selection options (e.g. -a selects all hosts from a config file).

The pdsh distribution also contains a parallel remote copy utility (pdcp - copy from local host to a group of remote hosts in parallel), reverse parallel remote copy (rpdcp, copy from a group of hosts to localhost in parallel), and a script dshbak for formatting and demultiplexing pdsh output.

文档：

程序：

  • pdsh 并行执行
  • pdcp 复制文件
  • rpdcp 反向复制文件
  • dshbak Perl脚本

安装：

make clean
./configure --with-ssh --with-netgroup --with-readline
make
make check
make install

举例：

并行执行命令：

# pdsh -f 2 -R exec -w 10.10.100.193,10.10.100.194,10.10.100.195 ssh -x -l %u %h "date;hostname;sleep 3;date"
10.10.100.193: Tue May  1 15:22:44 CST 2012
10.10.100.193: vm-10-10-100-193.company.com
10.10.100.194: Tue May  1 15:22:44 CST 2012
10.10.100.194: vm-10-10-100-194.company.com
10.10.100.193: Tue May  1 15:22:47 CST 2012
10.10.100.194: Tue May  1 15:22:47 CST 2012
10.10.100.195: Tue May  1 15:22:47 CST 2012
10.10.100.195: vm-10-10-100-195.company.com
10.10.100.195: Tue May  1 15:22:50 CST 2012

用dshbak格式化屏幕输出：

# pdsh -f 2 -R exec -w 10.10.100.193,10.10.100.194,10.10.100.195 ssh -x -l %u %h "date;hostname;sleep 3;date" | dshbak
----------------
10.10.100.193
----------------
Tue May  1 15:23:34 CST 2012
vm-10-10-100-193.company.com
Tue May  1 15:23:37 CST 2012
----------------
10.10.100.194
----------------
Tue May  1 15:23:34 CST 2012
vm-10-10-100-194.company.com
Tue May  1 15:23:37 CST 2012
----------------
10.10.100.195
----------------
Tue May  1 15:23:37 CST 2012
vm-10-10-100-195.company.com
Tue May  1 15:23:40 CST 2012

并行复制文件：

# pdcp -R ssh -w 10.10.100.193 -p /u01/oracle/deploy/bin/halvs-upgrade.sh /tmp/halvs-upgrade.sh
10.10.100.193: bash: /usr/local/bin/pdcp: No such file or directory
pdcp@xpt01: 10.10.100.193: ssh exited with exit code 127

目标服务器需要pdcp可执行命令

用netgroup给主机分组：

cat >/etc/netgroup <<'EOF'
cp-test (10.10.100.193,,) (10.10.100.194,,)
cp-all @cp-test
EOF

vi /etc/nsswitch.conf
netgroup:   files nisplus

getent netgroup cp-test

pdsh -g cp-test -q
pdsh -R ssh -g cp-test hostname


clusterssh

介绍：

ClusterSSH controls a number of xterm windows via a single graphical console window to allow commands to be interactively run on multiple servers over an ssh connection.

功能：

  • 图形界面的
  • 依赖一堆Perl模块

安装：

perl Build.PL
./Build
./Build test
./Build install

依赖的Perl模块

# perl Build.PL
Checking prerequisites...
  requires:
    !  Exception::Class is not installed
    !  Tk is not installed
    !  X11::Protocol is not installed
  build_requires:
    !  File::Which is not installed
    !  Readonly is not installed
    !  Test::DistManifest is not installed
    !  Test::Pod is not installed
    !  Test::Pod::Coverage is not installed
    !  Test::Trap is not installed

因cpan install Tk执行失败，就没再试


mussh

介绍：

Mussh is a shell script that allows you to execute a command or script over ssh on multiple hosts with one command. When possible mussh will use ssh-agent and RSA/DSA keys to minimize the need to enter your password more than once.

程序

  • mussh 并行执行

功能：

  • 设置并行度（-m）

安装：

cp -p mussh /usr/local/bin/
cp -p mussh.1 /usr/local/man/man1/

举例：

并行执行命令：

# mussh -A -m 2 -h 10.10.100.193 10.10.100.194 10.10.100.195 -c "date;hostname;sleep 3;date"
10.10.100.193: Tue May  1 15:21:33 CST 2012
10.10.100.193: vm-10-10-100-193.company.com
10.10.100.194: Tue May  1 15:21:34 CST 2012
10.10.100.194: vm-10-10-100-194.company.com
10.10.100.193: Tue May  1 15:21:36 CST 2012
10.10.100.195: Tue May  1 15:21:36 CST 2012
10.10.100.195: vm-10-10-100-195.company.com
10.10.100.194: Tue May  1 15:21:37 CST 2012
10.10.100.195: Tue May  1 15:21:39 CST 2012

格式化输出：

# mussh -b -A -m 2 -h 10.10.100.193 10.10.100.194 10.10.100.195 -c "date;hostname;sleep 3;date"
10.10.100.193: Tue May  1 15:25:04 CST 2012
10.10.100.193: vm-10-10-100-193.company.com
10.10.100.193: Tue May  1 15:25:07 CST 2012
10.10.100.194: Tue May  1 15:25:05 CST 2012
10.10.100.194: vm-10-10-100-194.company.com
10.10.100.194: Tue May  1 15:25:08 CST 2012
10.10.100.195: Tue May  1 15:25:07 CST 2012
10.10.100.195: vm-10-10-100-195.company.com
10.10.100.195: Tue May  1 15:25:10 CST 2012

远程执行本地脚本：

# cat >/tmp/hello.sh <<EOF
> echo 'hello world!'
> EOF
# mussh -A -m 2 -h 10.10.100.193 10.10.100.194 10.10.100.195 -C /tmp/hello.sh
10.10.100.193: hello world!
10.10.100.194: hello world!
10.10.100.195: hello world!


pssh

介绍：

PSSH provides parallel versions of OpenSSH and related tools. Included are pssh, pscp, prsync, pnuke, and pslurp. The project includes psshlib which can be used within custom applications.

程序：

  • pnuke 杀进程
  • prsync 同步文件
  • pscp 复制文件
  • pslurp 下载文件
  • pssh 并行执行
  • pssh-askpass

安装：

python setup.py install

举例：

执行命令：

# pssh -P -p 2 -H 10.10.100.193 -H 10.10.100.194 -H 10.10.100.195 "date;hostname;sleep 3;date"
10.10.100.193: Tue May  1 15:48:42 CST 2012
10.10.100.194: Tue May  1 15:48:42 CST 2012
10.10.100.193: vm-10-10-100-193.company.com
10.10.100.194: vm-10-10-100-194.company.com
10.10.100.193: Tue May  1 15:48:45 CST 2012
[1] 15:48:45 [SUCCESS] 10.10.100.193
10.10.100.194: Tue May  1 15:48:45 CST 2012
[2] 15:48:45 [SUCCESS] 10.10.100.194
10.10.100.195: Tue May  1 15:48:46 CST 2012
10.10.100.195: vm-10-10-100-195.company.com
10.10.100.195: Tue May  1 15:48:49 CST 2012
[3] 15:48:49 [SUCCESS] 10.10.100.195

格式化输出：

# pssh -i -p 2 -H 10.10.100.193 -H 10.10.100.194 -H 10.10.100.195 "date;hostname;sleep 3;date"
[1] 15:51:14 [SUCCESS] 10.10.100.193
Tue May  1 15:51:11 CST 2012
vm-10-10-100-193.company.com
Tue May  1 15:51:14 CST 2012
[2] 15:51:14 [SUCCESS] 10.10.100.194
Tue May  1 15:51:11 CST 2012
vm-10-10-100-194.company.com
Tue May  1 15:51:14 CST 2012
[3] 15:51:17 [SUCCESS] 10.10.100.195
Tue May  1 15:51:14 CST 2012
vm-10-10-100-195.company.com
Tue May  1 15:51:17 CST 2012


sshpt

介绍：

The SSH Power Tool (sshpt) enables you to execute commands and upload files to many servers simultaneously via SSH without using pre-shared keys. Uploaded files and commands can be executed directly or via sudo. Connection and command execution results are output in standard CSV format for easy importing into spreadsheets, databases, or data mining applications.

程序：

  • sshpt.py 并行执行

功能：

  • 无需ssh key
  • 依赖Paramiko和pycrypto这两个Python模块
  • Python 2.5+ (not 3.0+ yet)

安装：

rpm -Uvh python-crypto-2.0.1-1.el5.rf.x86_64.rpm
rpm -Uvh python-paramiko-1.7.6-1.el5.rf.noarch.rpm
cp -p sshpt.py /usr/local/bin/

举例：

并行执行命令：

echo "10.10.100.193
10.10.100.194
10.10.100.195" | sshpt.py -S -t 2 -u someone -P "secret"  "date;hostname;sleep 3;date"

RHEL5系统自带Python版本较低，是2.4版本，因此没有继续再试


tentakel

As of 2011-04-07, this project is no longer under active development.

版本太老了，就不试了


massh

介绍：

Massh makes it possible to perform the following on hundreds, or even thousands of hosts in a parallelized fashion:

  • Run Remote Commands
  • Push and Execute Pre-Written Scripts
  • Push Files
  • Pull Files

Massh uses Ambit to enumerate a list of targets for which it will execute one of the aforementioned operations. Hosts can be logically grouped and dynamically managed allowing for consistent operational changes and overall management of identically purposed hosts.

Massh can display the full output resulting from its various operations or it can be set to display an operation's success or failure for individual target hosts. The full ouput produced by Massh is completely organized and labeled by host, regardless of what order output is returned from target hosts.

Starting with version 2.x Massh combines flexible option control management and a simplified command + subcommand sytax. This reduces the complexity of typical Massh commands and makes it much easier to learn how to perform specific operations with specific options with Massh.

程序：

  • /etc/massh/massh.conf
  • /usr/bin/massh
  • /usr/bin/masshfilesupdate
  • /usr/lib/massh/libmassh.sh
  • /usr/share/man/man1/massh.1.gz
  • --以下是ambit的程序--
  • /etc/ambit/ambit.conf
  • /usr/bin/ambit
  • /usr/lib/ambit/libambit.sh
  • /usr/share/man/man1/ambit.1.gz
  • /var/ambit/hosts/down

功能：

  • 设置连接超时
  • 设置并行度。脚本有问题，${wc}应该是wc，还有${dirname}

安装：

rpm -Uvh ambit-2.0-40.noarch.rpm
rpm -Uvh massh-2.0-58.noarch.rpm

举例：

修改massh配置：

# massh list options

System Default Options
----------------------
Debug="no"
ForcePseudoTTY="no"
SyslogMassh="yes"
SSHLogLevel="quiet"
TimeOut="30"
Parallel="30"
Random="$RANDOM"
ControlPath="$HOME/.ssh/masshter-%r@%h:%p"
ControlMaster="no"
ControlPersist="300"
HostsFrom="ambit"
Separator="no"
SubCommand=""

User Specified Options
----------------------
NONE

# echo 2 | massh ed opt Parallel
Updating Option : Parallel
Current Value   : 30
Parallel="2"

并行执行命令：

# massh 10.10.100.19[3..5] verbose "date;hostname;sleep 3;date"
10.10.100.193 : Tue May  1 19:16:58 CST 2012
10.10.100.193 : vm-10-10-100-193.company.com
10.10.100.193 : Tue May  1 19:17:01 CST 2012
10.10.100.194 : Tue May  1 19:16:58 CST 2012
10.10.100.194 : vm-10-10-100-194.company.com
10.10.100.194 : Tue May  1 19:17:01 CST 2012
10.10.100.195 : Tue May  1 19:17:01 CST 2012
10.10.100.195 : vm-10-10-100-195.company.com
10.10.100.195 : Tue May  1 19:17:04 CST 2012

执行脚本： 

# cat >/tmp/hello.sh <<EOF
> echo 'hello world!'
> EOF
# massh 10.10.100.19[3..5] execute /tmp/hello.sh
10.10.100.193 : hello world!
10.10.100.194 : hello world!
10.10.100.195 : hello world!


PyDSH

介绍：

PyDSH is a remote administration tool, consisting of pydsh and pydcp. Pydsh allows you to run a command on multiple hosts in parallel over RSH, SSH or Telnet, OR manage your SSH public keys. The pydcp command allows copying files to/from multiple hosts.

文档：

功能：

  • 设置连接超时
  • 设置并行度
  • 加载主机列表文件
  • 依赖Pexpect 0.999
  • 远程执行本地脚本
  • 能上传、下载一个文件

安装：

cd pexpect-2.3
python ./setup.py install
cd ..
cd pydsh-0.6
./install.sh --install

需要Python 2.7，系统自带版本是2.4的，就没再试


ClusterShell

介绍：

ClusterShell is an event-driven open source Python library, designed to run local or distant commands in parallel on server farms or on large Linux clusters. It will take care of common issues encountered on HPC clusters, such as operating on groups of nodes, running distributed commands using optimized execution algorithms, as well as gathering results and merging identical outputs, or retrieving return codes. ClusterShell takes advantage of existing remote shell facilities already installed on your systems, like SSH.

ClusterShell's primary goal is to improve the administration of high-performance clusters by providing a lightweight but scalable Python API for developers. It also provides clush, clubak and nodeset, three convenient command-line tools that allow traditional shell scripts to benefit from some of the library features.

文档：

程序：

  • /etc/clustershell/clush.conf
  • /etc/clustershell/groups
  • /etc/clustershell/groups.conf
  • /etc/clustershell/groups.conf.d/
  • /usr/bin/clubak
  • /usr/bin/clush
  • /usr/bin/nodeset

安装：

rpm -Uvh clustershell-1.6-1.el5.noarch.rpm
rpm -Uvh vim-clustershell-1.6-1.el5.noarch.rpm

举例：


xargs

系统自带

-P参数表示并行度

举例：

# echo 10.10.100.19{3..5}|tr ' ' '\n'|xargs -n1 -P2 -I{} ssh root@{} "sh -c 'date;hostname;sleep 3;date'|sed 's/^/{}: /'"
10.10.100.194: Tue May  1 23:05:59 CST 2012
10.10.100.194: vm-10-10-100-194.company.com
10.10.100.194: Tue May  1 23:06:02 CST 2012
10.10.100.193: Tue May  1 23:05:59 CST 2012
10.10.100.193: vm-10-10-100-193.company.com
10.10.100.193: Tue May  1 23:06:02 CST 2012
10.10.100.195: Tue May  1 23:06:03 CST 2012
10.10.100.195: vm-10-10-100-195.company.com
10.10.100.195: Tue May  1 23:06:06 CST 2012


GNU Parallel

介绍：

GNU parallel is a shell tool for executing jobs in parallel using one or more computers. A job is can be a single command or a small script that has to be run for each of the lines in the input. The typical input is a list of files, a list of hosts, a list of users, a list of URLs, or a list of tables. A job can also be a command that reads from a pipe. GNU parallel can then split the input and pipe it into commands in parallel.

If you use xargs and tee today you will find GNU parallel very easy to use as GNU parallel is written to have the same options as xargs. If you write loops in shell, you will find GNU parallel may be able to replace most of the loops and make them run faster by running several jobs in parallel.

GNU parallel makes sure output from the commands is the same output as you would get had you run the commands sequentially. This makes it possible to use output from GNU parallel as input for other programs.

For each line of input GNU parallel will execute command with the line as arguments. If no command is given, the line of input is executed. Several lines will be run in parallel. GNU parallel can often be used as a substitute for xargs or cat | bash.

文档：


PPSS

介绍：

PPSS is a Bash shell script that executes commands, scripts or programs in parallel. It is designed to make full use of current multi-core CPUs. It will detect the number of available CPUs and start a separate job for each CPU core. It will also use hyper threading by default.

PPSS can be run on multiple hosts, processing a single group of items, like a cluster.

文档：


参考
Posted by wen xie at 11:06 PM 0 comments
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