NAME
Minion::Backend::Pg91 - PostgreSQL 9.1 backend
SYNOPSIS
use Minion::Backend::Pg91;
my $backend = Minion::Backend::Pg91->new('postgresql://postgres@/test');
DESCRIPTION
Minion::Backend::Pg91 is a backend for Minion based on
Minion::Backend::Pg . All necessary tables will be created automatically
with a set of migrations named `minion'. Note that this backend only
supports PostgreSQL 9.1.
ATTRIBUTES
Minion::Backend::Pg91 inherits all attributes from Minion::Backend and
implements the following new ones.
pg
my $pg = $backend->pg;
$backend = $backend->pg(Mojo::Pg->new);
Mojo::Pg object used to store all data.
METHODS
Minion::Backend::Pg91 inherits all methods from Minion::Backend and
implements the following new ones.
dequeue
my $job_info = $backend->dequeue($worker_id, 0.5);
my $job_info = $backend->dequeue($worker_id, 0.5, {queues => ['important']});
Wait a given amount of time in seconds for a job, dequeue it and
transition from `inactive' to `active' state, or return `undef' if
queues were empty.
These options are currently available:
queues
queues => ['important']
One or more queues to dequeue jobs from, defaults to `default'.
These fields are currently available:
args
args => ['foo', 'bar']
Job arguments.
id
id => '10023'
Job ID.
retries
retries => 3
Number of times job has been retried.
task
task => 'foo'
Task name.
enqueue
my $job_id = $backend->enqueue('foo');
my $job_id = $backend->enqueue(foo => [@args]);
my $job_id = $backend->enqueue(foo => [@args] => {priority => 1});
Enqueue a new job with `inactive' state.
These options are currently available:
attempts
attempts => 25
Number of times performing this job will be attempted, defaults to
`1'.
delay
delay => 10
Delay job for this many seconds (from now).
priority
priority => 5
Job priority, defaults to `0'.
queue
queue => 'important'
Queue to put job in, defaults to `default'.
fail_job
my $bool = $backend->fail_job($job_id, $retries);
my $bool = $backend->fail_job($job_id, $retries, 'Something went wrong!');
my $bool = $backend->fail_job(
$job_id, $retries, {whatever => 'Something went wrong!'});
Transition from `active' to `failed' state, and if there are attempts
remaining, transition back to `inactive' with a delay based on Minion.
finish_job
my $bool = $backend->finish_job($job_id, $retries);
my $bool = $backend->finish_job($job_id, $retries, 'All went well!');
my $bool = $backend->finish_job(
$job_id, $retries, {whatever => 'All went well!'});
Transition from `active' to `finished' state.
job_info
my $job_info = $backend->job_info($job_id);
Get information about a job, or return `undef' if job does not exist.
# Check job state
my $state = $backend->job_info($job_id)->{state};
# Get job result
my $result = $backend->job_info($job_id)->{result};
These fields are currently available:
args
args => ['foo', 'bar']
Job arguments.
attempts
attempts => 25
Number of times performing this job will be attempted, defaults to
`1'.
created
created => 784111777
Time job was created.
delayed
delayed => 784111777
Time job was delayed to.
finished
finished => 784111777
Time job was finished.
priority
priority => 3
Job priority.
queue
queue => 'important'
Queue name.
result
result => 'All went well!'
Job result.
retried
retried => 784111777
Time job has been retried.
retries
retries => 3
Number of times job has been retried.
started
started => 784111777
Time job was started.
state
state => 'inactive'
Current job state, usually `active', `failed', `finished' or
`inactive'.
task
task => 'foo'
Task name.
worker
worker => '154'
Id of worker that is processing the job.
list_jobs
my $batch = $backend->list_jobs($offset, $limit);
my $batch = $backend->list_jobs($offset, $limit, {state => 'inactive'});
Returns the same information as "job_info" but in batches.
These options are currently available:
state
state => 'inactive'
List only jobs in this state.
task
task => 'test'
List only jobs for this task.
list_workers
my $batch = $backend->list_workers($offset, $limit);
Returns the same information as "worker_info" but in batches.
new
my $backend = Minion::Backend::Pg91->new('postgresql://postgres@/test');
Construct a new Minion::Backend::Pg91 object.
register_worker
my $worker_id = $backend->register_worker;
my $worker_id = $backend->register_worker($worker_id);
Register worker or send heartbeat to show that this worker is still
alive.
remove_job
my $bool = $backend->remove_job($job_id);
Remove `failed', `finished' or `inactive' job from queue.
repair
$backend->repair;
Repair worker registry and job queue if necessary.
reset
$backend->reset;
Reset job queue.
retry_job
my $bool = $backend->retry_job($job_id, $retries);
my $bool = $backend->retry_job($job_id, $retries, {delay => 10});
Transition from `failed' or `finished' state back to `inactive', already
`inactive' jobs may also be retried to change options.
These options are currently available:
delay
delay => 10
Delay job for this many seconds (from now).
priority
priority => 5
Job priority.
queue
queue => 'important'
Queue to put job in.
stats
my $stats = $backend->stats;
Get statistics for jobs and workers.
These fields are currently available:
active_jobs
active_jobs => 100
Number of jobs in `active' state.
active_workers
active_workers => 100
Number of workers that are currently processing a job.
failed_jobs
failed_jobs => 100
Number of jobs in `failed' state.
finished_jobs
finished_jobs => 100
Number of jobs in `finished' state.
inactive_jobs
inactive_jobs => 100
Number of jobs in `inactive' state.
inactive_workers
inactive_workers => 100
Number of workers that are currently not processing a job.
unregister_worker
$backend->unregister_worker($worker_id);
Unregister worker.
worker_info
my $worker_info = $backend->worker_info($worker_id);
Get information about a worker, or return `undef' if worker does not
exist.
# Check worker host
my $host = $backend->worker_info($worker_id)->{host};
These fields are currently available:
host
host => 'localhost'
Worker host.
jobs
jobs => ['10023', '10024', '10025', '10029']
Ids of jobs the worker is currently processing.
notified
notified => 784111777
Last time worker sent a heartbeat.
pid
pid => 12345
Process id of worker.
started
started => 784111777
Time worker was started.
SEE ALSO
Minion, Minion::Backend::Pg, Mojolicious::Guides,
http://mojolicious.org.