Provided by: root-system-proofd_5.34.14-1build1_amd64 
NAME
proofd - PROOF (The Parallel ROOT Facility)
DESCRIPTION
Using PROOF (The Parallel ROOT Facility) one can analyze trees in parallel on a cluster of
computers. The PROOF system consists of the proofd(1) from-end program which is started
via inetd(8).
proofd takes care of user authentication and overlays itself then with the desired version
of the proofserv(1) executable.
The proofserv(1) is a basically the same as the ROOT interactive module root(1), except
that it reads its commands from a socket instead of from the terminal.
Since it is a remote server it will not do graphics and therefore is not linked with any
graphics libraries (Motif, X11, etc.).
SETTING UP PROOF
Since you need to handle sensitive system files, you need to have root (the user, not the
program!) privileges. Also, it's recommended that you read the appropriate man(1) pages
first. These are inetd(8) (the internet daemon), sysklogd(8) and syslog(3) (the system
logger daemon), and init(8) (the SYSV process control initializer).
In other words:
Be very VERY carefull when installing proofd
There, I said it. And ofcourse, no warrenties what so ever.
1 Make sure every node has ROOT installed. We'll assume you installed the ROOT
applications in <bindir> (e.g. /usr/bin) and the PROOF configuration files in files
in <proofdir>/etc (e.g. /usr/share/root/etc).
2 The TCP port 1094 was allocated by IANA, ( www.iana.org ⟨Iwww.iana.org⟩ ), to
rootd, so add to /etc/services the lines:
proofd 1093/tcp
rootd 1094/tcp
3 On each node, add to /etc/inetd.conf the lines:
proofd stream tcp nowait root <bindir>/proofd proofd <proofdir>/proof
rootd stream tcp nowait root <bindir>/rootd rootd -i
You can substitute the <proofdir> with any directory that holds your PROOF
configuration, for example /etc/root/proof. However, it should be shared among all
nodes in the cluster.
4 Restart inetd or force it to re-read the config file:
kill -1 <inetd pid>
If you use SYSV init(8) scripts, you can probaly just do
/etc/init.d/inetd restart
or whatever is appropriate for your system.
5 On the master node, add to /etc/syslog.conf the line:
local5,local6.debug <proofdir>/log/proof.log
and all slave nodes:
local5,local6.debug @<master hostname>
where <master hostname> is domain name of the master node. All PROOF syslog
messages will be collected on the master node. Just make one node in the cluster
the master, all others are slaves.
6 On all nodes, change the below lines in /etc/syslog.conf,
*.info;mail.none;news.none;authpriv.none /var/log/messages
to:
*.info;local5,local6,mail.none;news.none;authpriv.none /var/log/messages
7 Create an empty <proofdir>/log/proof.log:
echo "" > <proofdir>/log/proof.log
8 Restart syslogd or force it to re-read the config file:
kill -1 <syslogd pid>.
If you use SYSV init(8) scripts, you can probaly just do
/etc/init.d/sysklogd restart
or whatever is appropriate for your system.
9 Edit <proofdir>/etc/proof.conf to reflect your cluster configuration. See the
example proof.conf file for more information.
If you installed ROOT using some precompiled package (for example a Redhat Linux or a
Debian GNU/Linux package), steps 2 to 4 may already be done for you.
If you're running Linux, Steps 5 to 7 can be somewhat automated using the script proof-
facility in <proofdir> of your distribution. This script uses syslog-facility(1), from the
Linux syslog(1) distribution, and may run on other platforms as well - but no warrenties
mind you!
Step 9 is completely up to the user.
EXAMPLE
That's it. To test PROOF try the following:
root [1] gROOT->Proof("<master hostname>")
root [2] gPROOF->Print()
<shows information on the master and all active slave servers>
root [3] .q
FILES
<proofdir>
The location of your PROOF data. In binary packages, like for Redhat LinuxI or
Debian GNU/Linux, this will probably be /usr/share/root/proof. If you got a binary
tar(1)-ball from the ROOT website, or a build it yourself without the static paths
option, then this directory could be ROOTSYS/proof. However, you may set it to
something else when starting your server.
<proofdir>/etc
This directory holds all the configuration files for your cluster(s).
<proofdir>/etc/<cluster>.conf
This is the cluster named <cluster> configuration file. See
<proofdir>/etc/<cluster>.conf.sample for an example.
<proofdir>/etc/motd
This is Message-Of-The-Day file. See <proofdir>/etc/motd.sample for an example.
<proofdir>/etc/noproof
If this file is present, all PROOF services will be diabled. See
<proofdir>/etc/noproof.sample for an example.
<proofdir>/etc/proof.conf
This is the PROOF configuration file. See <proofdir>/etc/proof.conf.sample for an
example.
~/.rootnetrc.conf
Configuration file for network access. Here you specify login names and pass word,
so it MUST be read/write-able only by the user. See
<proofdir>/etc/rootnetrc.conf.sample for an example.
<proofdir>/log
This directory holds the log files from the master and slaves.
<proofdir>/log/proof.log Syslog(1) log file for PROOF.
SEE ALSO
proofserv(1) , root(1) , rootd(1)
More information can be found at the ROOT website: http://root.cern.ch
⟨http://root.cern.ch⟩
ORIGINAL AUTHORS
The ROOT team (see web page above):
Rene Brun and Fons Rademakers
COPYRIGHT
This library is free software; you can redistribute it and/or modify it under the terms of
the GNU Lesser General Public License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along with this
library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
Boston, MA 02110-1301 USA
AUTHOR
This manual page was written by Christian Holm Christensen <cholm@nbi.dk>, for the Debian
GNU/Linux system (but may be used by others).