When Users Go Berserk ®
AND
a B.O.F.H. tool
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Hosted by
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Configuration
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This page contains instructions on how to configure
the auto nice daemon for your system.
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AND
NAME
SYNOPSIS
VERSION
DESCRIPTION
COMMAND-LINE OPTIONS
SIGNALS
FILES
SEE ALSO
INTERNET
NAME
SYNOPSIS
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and [-htvsx] [-i interval]
[-c /path/to/and.conf] [-d
/path/to/and.priorities] |
VERSION
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This manual page documents and version
1.2.0. |
DESCRIPTION
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The auto nice daemon activates itself in certain intervals
and renices and even kills jobs according to their priority
and CPU usage. |
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Renice levels and kill signals can be defined in terms of
users, groups, and commands. Wildcards can be specified for
any of these. In addition, commands can be specified using
POSIX regular expressions. To allow for network-wide
configuration and priority files, a mechanism for
hostname-based evaluation is provided, again supporting
regular expressions for specifying host names. |
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Jobs owned by root are left alone. Jobs are never increased
in their priority. |
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Here are some real-world examples: |
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A certain user is notorious for wasting CPU with
next-to-irrelevant jobs. One line is sufficient to renice
all of his jobs to about 19. This is a typical situation for
a LART (Luser's Attitude Readjustment Tool) like
and. |
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A CPU server is dedicated to a certain group, but others may
also use it when it's idle. Just define default nice levels
of e.g. 18 and a lower nice level for the privilegued group,
say nice level 12. |
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A certain web browser who shall remain unnamed tends to go
berserk once in a while. You can configure and to
kill -9 it after e.g. 20 CPU minutes. |
COMMAND-LINE OPTIONS
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Specifies the configuration file. If this flag is omitted,
/etc/and.conf is used instead. |
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-d /path/to/and.priorities |
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Specifies the priority database file. If this flag is
omitted, /etc/and.priorities is used
instead. |
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Produces a short help text. |
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Sets the interval between nice level checks. This flag
overrides the interval specified in the configuration file,
if any. The default interval of 60 seconds is used if
neither -i nor an interval directive in the configuration
file is given. |
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Log to stdout. Without this switch, logging goes to syslog
(normal operations) or ./debug.and (test mode).
Useful for debugging config files. |
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Run in test mode only, i.e. don't really renice or kill
anything. In this mode, logging goes into ./debug.and
instead of syslog. |
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Increase verbosity. For maximum verbosity, this flag can be
specified multiple times. Be warned that this will blow up
your log files, so you should use it in test mode
only. |
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Run in full operational mode, i.e. really renice or kill
things. This is the default. |
SIGNALS
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On kill -HUP the auto nice daemon will reload its
configuration file and priority database. |
FILES
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General configuration file. Stores default nice level,
default interval, the "time zones" and the
database lookup affinity. |
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The priority database (in plain text). Contains the (user,
group, command, nicelevels) tuples. |
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Both files have their own manual pages. |
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Contains logging and status information for debugging
purposes. Used in test mode only. |
SEE ALSO
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and.conf(5), and.priorities(5),
kill(1), regex(7),
renice(8) |
INTERNET
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http://and.sourceforge.net/ |
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