<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML ><HEAD ><TITLE >DSH, Distributed Shell</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="The openMosix HOWTO" HREF="index.html"><LINK REL="UP" TITLE="Cluster Installation" HREF="installation.html"><LINK REL="PREVIOUS" TITLE="Cluster Installations" HREF="x552.html"><LINK REL="NEXT" TITLE="Administrating openMosix" HREF="p568.html"></HEAD ><BODY CLASS="SECT1" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >The openMosix HOWTO: </TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="x552.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" >Chapter 7. Cluster Installation</TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="p568.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="AEN555" ></A >7.2. DSH, Distributed Shell</H1 ><P > At the time of this writing (May 2003) DSH's most current release is available from <A HREF="http://www.netfort.gr.jp/~dancer/software/downloads/" TARGET="_top" ><I CLASS="CITETITLE" >http://www.netfort.gr.jp/~dancer/software/downloads/</I ></A > More info on the package can be found on <A HREF="http://www.netfort.gr.jp/~dancer/software/dsh.html" TARGET="_top" ><I CLASS="CITETITLE" >http://www.netfort.gr.jp/~dancer/software/dsh.html</I ></A > The latest version available for download is 0.23.6 You will need both libdshconfig-0.20.8.tar.gz and dsh-0.23.5.tar.gz Start with installing libdshconfig <TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="PROGRAMLISTING" >./configure make make install </PRE ></FONT ></TD ></TR ></TABLE > Repeat the process for the dsh package.</P ><P >Say we have a small cluster with a couple of nodes. To make life easier we want type each command once but have it executed on each node. You then have to create a file in $HOME/.dsh/group/clusterwname that lists the ip's of your cluster. eg. <TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="PROGRAMLISTING" >[root@inspon root]# cat .dsh/group/mosix 192.168.10.220 192.168.10.84</PRE ></FONT ></TD ></TR ></TABLE > As an example we run ls on each of these machines We use -g to use the mosix group (this way you can create subsets of a group with different configurations) <TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="PROGRAMLISTING" >[root@inspon root]# dsh -r ssh -g mosix ls 192.168.10.84: anaconda-ks.cfg 192.168.10.84: id_rsa.pub 192.168.10.84: install.log 192.168.10.84: install.log.syslog 192.168.10.84: openmosix-kernel-2.4.17-openmosix1.i686.rpm 192.168.10.84: openmosix-tools-0.2.0-1.i386.rpm 192.168.10.220: anaconda-ks.cfg 192.168.10.220: id_dsa.pub 192.168.10.220: id_rsa.pub 192.168.10.220: openmosix-kernel-2.4.17-openmosix1.i686.rpm 192.168.10.220: openmosix-tools-0.2.0-1.i386.rpm 192.168.10.220: oscar-1.2.1rh72 192.168.10.220: oscar-1.2.1rh72.tar.gz</PRE ></FONT ></TD ></TR ></TABLE > Note that neither of the machines ask for a password. This is because we have set up RSA authentication between the different accounts. If you want to run commands with multiple parameters you will either have to put the command between quotes. <TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="PROGRAMLISTING" >[root@inspon root]# dsh -r ssh -g mosix "uname -a" 192.168.10.84: Linux omosix2.office.be.stone-it.com 2.4.17-openmosix1 #1 Wed May 29 14:32:28 CEST 2002 i686 unknown 192.168.10.220: Linux oscar0 2.4.17-openmosix1 #1 Wed May 29 14:32:28 CEST 2002 i686 unknown</PRE ></FONT ></TD ></TR ></TABLE > or use the -c -- option. Both give basically the same output. <TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="PROGRAMLISTING" >[root@inspon root]# dsh -r ssh -g mosix -c -- uname -a 192.168.10.220: Linux oscar0 2.4.17-openmosix1 #1 Wed May 29 14:32:28 CEST 2002 i686 unknown 192.168.10.84: Linux omosix2.office.be.stone-it.com 2.4.17-openmosix1 #1 Wed May 29 14:32:28 CEST 2002 i686 unknown</PRE ></FONT ></TD ></TR ></TABLE > </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="x552.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="p568.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Cluster Installations</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="installation.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Administrating openMosix</TD ></TR ></TABLE ></DIV ></BODY ></HTML >
