AC-Yenta

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lib/AC/Yenta.pm  view on Meta::CPAN

=head2 Eventual Consistency

Key-value data is versioned with timestamps. By default, newest wins.
Maps can be configured to keep and return multiple versions and client
code can use other conflict resolution mechanisms.

Lost, missing or otherwise inconsistent data is detected
by kibitzing merkle tree hash values.

=head2 Topological awareness

Yentas can take network topology into account when tranferring
data around to minimize long-distance transfers. You will need to
write a custom C<MySelf> class with a C<my_datacenter> function.

=head2 Multiple Network Interfaces / NAT

Yentas can take advantage of multiple network interfaces with
different IP addresses (eg. a private internal network + a public network),
or multiple addresses (eg. a private addresses and a public address)
and various NAT configurations.

lib/AC/Yenta.pm  view on Meta::CPAN

    seedpeer 192.168.10.11:3503
    seedpeer 192.168.10.12:3503

=item secret

specify a secret key used to encrypt data transfered between
yentas in different datacenters.

    secret squeamish-ossifrage

=item syslog

specify a syslog facility for log messages.

    syslog local5

=item debug

enable debugging for a particular section

    debug map

=item map

configure a map (a collection of key-value data). you do not need

lib/AC/Yenta/D.pm  view on Meta::CPAN

    die "no config file specified\n" unless $cfile;

    # configure
    $AC::Yenta::CONF = AC::Yenta::Config->new(
        $cfile, onreload => sub {
            AC::Yenta::Store::configure();
        });


    initlog( 'yenta', (conf_value('syslog') || 'local5'), $opt->{debugall} );

    AC::Yenta::Debug->init( $opt->{debugall}, $AC::Yenta::CONF);
    daemonize(5, 'yentad', $opt->{argv}) unless $opt->{foreground};
    verbose("starting.");


    $SIG{CHLD} = $SIG{PIPE} = sub{};        				# ignore
    $SIG{INT}  = $SIG{TERM} = $SIG{QUIT} = \&AC::DC::IO::request_exit;  # abort

    # initialize subsystems

lib/AC/Yenta/Debug.pm  view on Meta::CPAN

# -*- perl -*-

# Copyright (c) 2009 AdCopy
# Author: Jeff Weisberg
# Created: 2009-Mar-27 11:40 (EDT)
# Function: debugging + log msgs
#
# $Id$

package AC::Yenta::Debug;
use AC::DC::Debug;
our @ISA = 'AC::DC::Debug';
use strict;


1;