Cluster solutions DIY or use OSCAR

ericxlin

Cluster solutions
DIY
OSCAR
ROCKS
...

DIY cluster

advantages
  control
  learning experience
disadvantages
  control
  administration

DIY-cluster how-to outline
  --hardware requirement
     several commodity computers:
        cpu or motherboard
        memory
        ehternet card
        hard drive (recoomended,in most cases)
     network switch
     cables,etc
  --head node edployment
     core software requirements
        core system
        additional packages
     cluster-specific software
     configuration
        initial configuration
            share /home directory
            configure firewall rules
            configure networking
            configure SSH
            create conpute node image
  --adding compute nodes

building the cluster
   --install compute node image on the compute node
         manually
         PXE boot
         redhat kickstart etc.
   --configure host name,NFS,etc
   --for each node!

maintenance
   --software updates in head node require update in compute node
   --failed nodes must be temporarily removed from head node configuration files

but when the users want hundreds of nodes or more,we must use OSCAR or others

OSCAR open source cluster application resources
--fully-inregrated software bundle to ease deployment and management of a cluster
--provides
  management wizard
  command-line tools
  system installation suite

overview of process
--install OSCAR-approved linux distribution
--install OSCAR distribution
--create node images
--add nodes
--start computing

OSCAR management wizard
--download/install/remove OSCAR packages
--build a cluster image
--add/remove cluster nodes
--configure nerwork
--reimage or test a node with the network boot manager

OSCAR command line tools
--everything the wizard offers
--yume
  update node packages
C3 -- the cluster command control tools
--provide cluster-wide versions of common commands
--concurrent execution
--example 1:copy a file from the head node to all visualization nodes
--example 2:execute a script on all compute nodes
C3 list of commands
--cexec;ckill;cget;cpush;cpushimage;crm;cshutdown;cnum;cname;clist
example C3 configuraiton
# /etc/c3.conf
##
# describes cluster configuration
##
cluster gcb {
  gcb.fiu.edu #head node
  dead placeholder #change command line to 1 indexing
  compute-0-[0-8] #first set of nodes
  exclude 5 #offline node in the range (killed by J. Figueroa)‏
}
OPIUM
--the OSCAR password installer and user management
  synchronize user accounts
  set up passwordless SSH
  periodically check for changes in passwords

SIS
--system installation suite
--installs linux systems over a network
--image-based
--allows different images for different nodes
--nodes can be booted from network,floppy,or CD







本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u3/94480/showart_1910118.html