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October 14, 1998 BARRIERD 1
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<h3>
NAME
</h3>
<b>barrierd</b>
- syncronize a process on a number of machines.
<h3>
SYNOPSIS
</h3>
<b>barrierd</b>
[<b>-</b><b></b><b>v</b>]
[<b>-</b><b></b><b>p</b><i></i><i> port</i>]
<h3>
DESCRIPTION
</h3>
The
<b>barrierd</b>
daemon runs on a host, and accepts barrier connections from the client
program barrier. It handles the connections and syncronization of
various barriers being set up and taken down across the cluster.
<dl compact>
<p><dt><b>-</b><b></b><b>v</b><dd>
Prints the version of ClusterIt to the stdout, and exits.
<p><dt><b>-</b><b></b><b>p</b><dd>
Specifies a port number for the
<b>barrierd</b>
daemon to listen on. Defaults
to 1933, and overrides the
<code></code><code>BARRIER_PORT</code>
environment variable.
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<h3>
ENVIRONMENT
</h3>
<b>barrierd</b>
utilizes the following environment variables:
<dl compact>
<p><dt><code></code><code>BARRIER_PORT</code><dd>
Sets the default remote port to connect to.
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<h3>
DIAGNOSTICS
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Exit status is 0 on success, 1 if an error occurs.
<h3>
SEE ALSO
</h3>
<a href="barrier.html">barrier(1)</a>,
<a href="dsh.html">dsh(1)</a>,
<h3>
HISTORY
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The
<b>barrierd</b>
command appeared in clusterit 1.1.
<h3>
AUTHOR
</h3>
<b>Barrierd</b>
was written by Tim Rightnour.
<h3>
BUGS
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<b>Barrierd</b>
can only handle up to 10 unique barrier tokens at any one
time. In addition, it can only handle a barrier size of up to 512
nodes. These values can be modified by recompiling the program.
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