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NAME

App::Switchman

DESCRIPTION

switchman's internals

METHODS

acquire_semaphore

Acquires semaphore for a given resource

get_group_hosts

Returns an arrayref of hosts included int the given group

get_lock

Creates a named lock in ZooKeeper Returns undef is lock already exists, otherwise returns true and sets lock_watch

get_queue_path

Returns queue path for a given resource

get_resources

Returns resource names listed in ZooKeeper Macros are processed

is_group_serviced

Determines if execution is allowed on the current host

is_task_in_queue

Checks if task is already queue up for a given resource

leave_queues

Leaves all resource queues

load_prefix_data

Loads data from prefix znode Sets prefix_data_watch

prepare_zknodes

Ensures existence of subnodes we use

queue_up

Puts task in queue for resource Returns queue item path

zk_connect

Connect to zookeeper cluster

run

Application loop Never returns

run_command_in_background

Execs command

usage

Shows help and exits

version

Shows version info and exits

wait_in_queue

Waits in queue for a given resource

COPYRIGHT AND LICENSE

This software is copyright (c) 2012-2016 by Yandex LLC.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.