BPCP

bpcp is the best utility for copying files efficiently across the cluster. It is the bproc replacement for rcp and scp. It's syntax is compatible with rcp.

Syntax

bpcp <source> <destination>

Both source and destination are specified in the form [<node>:][<path>/]<filename>

Any optional portion that is not specified will take on a reasonable default value as follows:

• <node> will default to the master (-1:)

• <path> will default to the CWD or on a slave node, / if CWD doesn't exist

• <filename> will default to the filename specified in the source argument

As might be expected, '.' specifies the CWD.

For compatibility with older cluster software, bpcp is syntax compatible with rcp. Thus, in source code, one may safely s/rcp/bpcp/g and re-compile.

Examples

bpcp /etc/sensors 1:/etc

cd /etc ; bpcp sensors 1:

bpcp 2:/etc/sensors 1:/etc