NAME
Parallel::Workers - run workers in parallel. Workers can be Eval, SSH,
XMLRPC or Your commands
VERSION
This document describes Parallel::Workers version *$VERSION*
SYNOPSIS
use Parallel::Workers;
#Workers that use Eval action with a trantransaction controller
# ^^^^
my $worker=Parallel::Workers->new(maxworkers=>4,timeout=>10, backend=>"Eval");
my $id=$worker->create(hosts => \@named, command=>"`date`",
transaction=>{error=>TRANSACTION_TERM, type=>'SCALAR',regex => qr/.+/m});
my $info=$worker->info();
#Workers that use SSH action with a trantransaction controller
# ^^^
$worker=Parallel::Workers->new(
maxworkers=>16,timeout=>10,
backend=>"SSH", constructor =>{user=>'demo',pass=>'demo'}
);
$id=$worker->create(hosts => \@hosts, command=>"cat /proc/cmdline",
transaction=>{error=>TRANSACTION_TERM, type=>'SCALAR',regex => qr/.+/m});
DESCRIPTION
This *Parallel::Workers* allow you to run multiples tasks in parallel
with an error validation.
You can specify maxworkers value that limit the max physical threads.
You can specify the backend that run the task, currently only Eval, SSH
and XMLRPC are implemented, but you can make yours for your needs.
Workers run simples tasks that return value. You can specify different
way to check the return value and on error you decide to stop or
continue the main workers.
# workers TERM if return value is not in this regex /.+/m
$id=$worker->create(...,
transaction=>{error=>TRANSACTION_TERM, type=>'SCALAR',regex => qr/.+/m };
# workers TERM if return value is not 127
$id=$worker->create(...,
transaction=>{error=>TRANSACTION_TERM, type=>'SCALAR',check => 127};
# workers TERM if return value is not an HASH
$id=$worker->create(...,
transaction=>{error=>TRANSACTION_TERM, type=>'ARRAY'};
# workers CONTINUE on error
$id=$worker->create(...,
transaction=>{error=>TRANSACTION_CONT, ...};
INTERFACE
DIAGNOSTICS
"Error message here, perhaps with %s placeholders"
[Description of error here]
"Another error message here"
[Description of error here]
[Et cetera, et cetera]
CONFIGURATION AND ENVIRONMENT
Parallel::Workers requires no configuration files or environment
variables.
DEPENDENCIES
None.
INCOMPATIBILITIES
None reported.
BUGS AND LIMITATIONS
No bugs have been reported.
Please report any bugs or feature requests to
"
[email protected]", or through the web interface at
<
http://rt.cpan.org>.
AUTHOR
Olivier Evalet "<
[email protected]>"
LICENCE AND COPYRIGHT
Copyright (c) 2006, Olivier Evalet "<
[email protected]>". All rights
reserved.
This module is free software; you can redistribute it and/or modify it
under the same terms as Perl itself. See perlartistic.
DISCLAIMER OF WARRANTY
BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE
ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH
YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
NECESSARY SERVICING, REPAIR, OR CORRECTION.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENCE, BE LIABLE
TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES.
