/ 
Schedule-Load-3.064
/ rschedule

NAME

rschedule - User interface for Perl Schedule::Load configuration and status

SYNOPSIS

rschedule [ --help ] [ --port=port ] [ --dhost=host ] [ --version ]

rschedule top rtop

rschedule hosts rhosts

rschedule loads rloads

rschedule holds

rschedule status

rschedule [ --host=host ] reserve

rschedule [ --host=host ] release

rschedule [ --host=host ] allow_class class

rschedule [ --host=host ] deny_class class

rschedule [ --host=host ] set_const var=value

rschedule [ --host=host ] set_stored var=value

rschedule --class=class best

rschedule --class=class best_or_none

rschedule [ --load=load ] fixed_load pid

DESCRIPTION

rschedule will report or set status for load distribution using the Perl Schedule::Load package.

If symbolically linked to the name "rtop" rschedule will by default produce a listing of each host and the top loads on those hosts. Similarly, a link to "rhosts" will show the host report by default, and a link to "rloads" will show the load report.

COMMANDS

allow_class <class>

Sets the hostname to allow the specified class of jobs. This sticks across reboots.

best

Returns the best host for a new job.

best_or_none

Returns the best host if there are free CPUs laying around, else fails.

classes

Displays a listing of the classes of jobs each host can run.

cmnd_comment <pid>

Sets the command comment for the given process ID. In rschedule top (rtop) displays, this will be shown rather than the name of the command. Command comments are inherited by children of commented parents.

deny_class <class>

Sets the hostname to deny the specified class of jobs.

fixed_load <pid>

Sets the given process ID to have that process count as one host load, even if it is using less CPU time than that due to high disk activity or other sleeps.

holds

Displays a listing of jobs that are blocked waiting for resources.

hosts

Displays a listing of each host being monitored along with its load and system type.

hostnames

Displays list of each hostname. Multi-CPU hosts appear once.

idle_host_names

Displays list of each idle CPU. Multi-CPU hosts appear multiple times.

loads

Displays a longer command line of top jobs, along with any fixed_load jobs.

release

Releases a host from dedicated use. Use --host to specify which host.

Any person may release a host, not just the original user requesting the reservation. You may also use "release reserve" together to change an existing reservation.

reserve

Reserves a host for dedicated use. To be reservable the reservable flag must be set when that host's slreportd is invocated. This is indicated on the top report by a "R" in the column next to the command. To override a existing reservation you need to release the reservation first. Use --host to specify which host. A optional --comment specifies the reservation comment; the default time and user will be prepended unless a leading - is used.

set_const var=value

Sets a constant reporter parameter to the specified value. Slreportd will loose the information when rebooted, so this should only be used to avoid restarting the daemon after changing the slreportd's boot flags.

set_stored var=value

Sets a stored reporter parameter to the specified value. Slreportd will keep the information when rebooted, and override any set_const setting.

sleep secs

For debugging only, sleep the specified number of seconds.

status

Displays a listing of each host and its daemon's status. Intended only for debugging problems with the scheduler.

top

Displays a listing of top processes across all hosts being monitored.

ARGUMENTS

--allow-reserved
--no-allow-reserved

Specifies if reserved hosts may be returned by the best, best_or_none, hostnames, idle_host_names, and jobs commands.

--class <class>

Specifies the job class for the best, best_or_none, hostnames, idle_host_names, and jobs commands.

--comment <comment>

Specifies the command comment for the cmnd_comment command.

--dhost <hostname>

Specifies the host name that slchoosed uses. May be specified multiple times to specify backup hosts. Defaults to SLCHOOSED_HOST environment variable, which contains colon separated host names.

--help

Displays this message and program version and exits.

--kill <signal>

With the "loads" command, convert the listing to a form that will login to the host and kill the processes. With a argument, use the argument as the signal name.

--load <load>

Specifies the load value for the fixed_load command, defaults to 1.

--port <portnumber>

Specifies the port number that slchoosed uses.

--similar

Specifies only machines with the same OS version as the current host should be returned for the best, best_or_none, hostnames, idle_host_names, and jobs commands.

--version

Displays program version and exits.

DISTRIBUTION

The latest version is available from CPAN and from http://www.veripool.org/.

Copyright 1998-2011 by Wilson Snyder. This package is free software; you can redistribute it and/or modify it under the terms of either the GNU Lesser General Public License Version 3 or the Perl Artistic License Version 2.0.

SEE ALSO

Schedule::Load

AUTHORS

Wilson Snyder <wsnyder@wsnyder.org>