ScoopServer

The SCOOP cluster resource server, ScoopServer(8), periodically collects host resource information for one or more clusters. Following are examples of the options that can be used on the command line: 
	# export PATH=$PATH:/opt/score/sbin
	# export SCBDSERV=server
	# ScoopServer -g pcc
This will execute ScoopServer and collect information from the group of hosts given by the pcc group known by the scoreboard running on host server. 
	# ScoopServer -g pcc,htc
This will execute ScoopServer and collect information from two groups of hosts given by the pcc and htc groups. When Scoop is used to display the clusters, one block matrix will be used to show all compute hosts in the clusters. 
	# ScoopServer -g pcc -M -L
The -M option specifies that the Compute Host Lock Server (msgbserv(8)) will not be locked by ScoopServer. If this option is not used, then ScoopServer locks the Compute Host Lock Server during its periodic collection of data, and when the ping command is executed. The -L option specifies that one-minute load average data will be collected from the compute host agents.

The interval for host activity updates defaults to 60 seconds. This can be changed with the following option: 
	# ScoopServer -g pcc -ui 120
This specifies an interval of 120 seconds between host activity updates.

ScoopServer also has an interactive mode, in which you can login to the server and execute commands from a prompt. The default port number is 4010. Here is an example: 
	# telnet localhost 4010
	Trying 127.0.0.1...
	Connected to localhost.localdomain.
	Escape character is '^]'.
	>help
	Commands are:");
	version        print version number
	list           print hostname of registered hosts
	status         print system status of registered hosts
	info           print resource information of all hosts
	info <host>    print resource information of specific host
	info <option>  print resource information by specific data
	info -help     print help for info subcommand
	quit           exit this session
	>status
	 pdspcc300.pccluster.org	UP#0.00
	 pdspcc301.pccluster.org	UP#0.00
	 pdspcc302.pccluster.org	UP#0.00
	 pdspcc303.pccluster.org	UP#0.00
	 ...output skipped for brevity...
	 pdsac60e.pccluster.org	UP#0.55
	 pdsac60f.pccluster.org	UP#0.00
	>info -help
	Info Syntax is:
	 info <hostnames> <options>
	            multiple hostnames & options can be separated with spaces.
	Info Options are:
	 -all       print resource information on all hosts
	 -down      print hostname which seems to be down?!
	 -arch      print machine specific information
	 -os        print operating system information
	 -nusers    print number of users
	 -nprocs    print number of processes
	 -boot      print boot-up date & time
	 -uptime    print host running time
	 -loadavg   print load averages on 1min, 5min & 15min
	 -cpu       print CPU time usages for user, system & idle
	 -mem       print memory statistics for total, used & free
	 -swp       print swap statistics for total, used & free
	 -fs <name> print filesystem statistics for total, used & free
	            multiple filesystem names can be separated with spaces.
	>info pdsac60f -arch -os -mem
	 pdsac60f.pccluster.org	HOST    S	pdsac60f.pccluster.org
	 pdsac60f.pccluster.org	ARCH    S	alpha
	 pdsac60f.pccluster.org	NCPUS   I	1
	 pdsac60f.pccluster.org	OS      S	Linux
	 pdsac60f.pccluster.org	VERSION S	2.2.12pre12
	 pdsac60f.pccluster.org	MEMTOTL I	502352
	 pdsac60f.pccluster.org	MEMUSED I	45736
	 pdsac60f.pccluster.org	MEMFREE I	456616
	>info -nprocs
	 pdspcc300.pccluster.org	NPROCS  I	18
	 pdspcc301.pccluster.org	NPROCS  I	18
	 pdspcc302.pccluster.org	NPROCS  I	18
	 ...output skipped for brevity...
	 pdsac60e.pccluster.org	NPROCS  I	15
	 pdsac60f.pccluster.org	NPROCS  I	15
	>quit
	Bye.......
	Connection closed by foreign host.
	#
CREDIT
This document is a part of the SCore cluster system software developed at PC Cluster Consortium, Japan. Copyright (C) 2003 PC Cluster Consortium.