本文详细介绍了DIY集群的构建过程，包括硬件需求、部署头节点、添加计算节点、维护更新等步骤，并对比了OSCAR等开源集群应用资源的优势，提供了从安装到管理的全流程指南。
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
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