NAME

barrierd — syncronize a process on a number of machines.

SYNOPSIS

DESCRIPTION

The barrierd 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.

-v

Prints the version of ClusterIt to the stdout, and exits.

-p

Specifies a port number for the barrierd daemon to listen on. Defaults to 1933, and overrides the BARRIER_PORT environment variable.

ENVIRONMENT

barrierd utilizes the following environment variables:

BARRIER_PORT

Sets the default remote port to connect to.

DIAGNOSTICS

Exit status is 0 on success, 1 if an error occurs.

SEE ALSO

barrier(1), dsh(1),

HISTORY

The barrierd command appeared in clusterit 1.1.

AUTHOR

Barrierd was written by Tim Rightnour.

BUGS

Barrierd 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.