def get_redis_memory_used(connection=None):
"""
All memory used in redis rq: namespace
:param connection:
:return:
"""
RQ_REDIS_NAMESPACE = 'rq:*'
redis_connection = resolve_connection(connection)
script = """
local sum = 0;
local keys = {};
local done = false;
local cursor = "0"
repeat
local result = redis.call("SCAN", cursor, "match", ARGV[1])
cursor = result[1];
keys = result[2];
for i, key in ipairs(keys) do
local mem = redis.call("MEMORY", "USAGE", key);
sum = sum + mem;
end
if cursor == "0" then
done = true;
end
until done
return sum;
"""
script = redis_connection.register_script(script)
return humanize.naturalsize(script(args=[RQ_REDIS_NAMESPACE]))
def __init__(self, queue_name='default', interval=60, connection=None):
from rq.connections import resolve_connection
self.connection = resolve_connection(connection)
self.queue_name = queue_name
self._interval = interval
self.log = logger
self._lock_acquired = False
def __init__(self, queue_name="default", interval=60, connection=None):
from rq.connections import resolve_connection
self.connection = resolve_connection(connection)
self.queue_name = queue_name
self._interval = interval
self.log = logger
def __init__(self,
queue_name='default',
queue=None,
interval=60,
connection=None,
job_class=None,
queue_class=None,
name=None):
from rq.connections import resolve_connection
self.connection = resolve_connection(connection)
self._queue = queue
if self._queue is None:
self.queue_name = queue_name
else:
self.queue_name = self._queue.name
self._interval = interval
self.log = logger
self._lock_acquired = False
self.job_class = backend_class(self, 'job_class', override=job_class)
self.queue_class_name = None
if isinstance(queue_class, string_types):
self.queue_class_name = queue_class
self.queue_class = backend_class(self,
'queue_class',
override=queue_class)
self.name = name or uuid4().hex
def __init__(self, queue_name='default', interval=60, connection=None):
from rq.connections import resolve_connection
self.connection = resolve_connection(connection)
self.queue_name = queue_name
self._interval = interval
self.log = logger
self._lock_acquired = False
def __init__(self, job_class=None, queue_class=None, interval=1,
connection=None):
self.interval = interval
self.log = logger
self.connection = resolve_connection(connection)
self.job_class = job_class if job_class is not None else Job
self.queue_class = queue_class if queue_class is not None else Queue
self._queue_cache = {}
def all(cls, connection=None, job_class=None, serializer=None):
"""Returns an iterable of all Queues.
"""
connection = resolve_connection(connection)
def to_queue(queue_key):
return cls.from_queue_key(as_text(queue_key),
connection=connection,
job_class=job_class, serializer=serializer)
return [to_queue("{0}{1}".format(cls.redis_queue_namespace_prefix, namespace))]
def __init__(self,
queue_name='default',
interval=60,
connection=None,
scheduler_key=None,
scheduled_jobs_key=None):
from rq.connections import resolve_connection
self.connection = resolve_connection(connection)
self.queue_name = queue_name
self._interval = interval
self.log = logger
self._lock_acquired = False
if scheduler_key:
self.scheduler_key = scheduler_key
if scheduled_jobs_key:
self.scheduled_jobs_key = scheduled_jobs_key
def lpop(cls, queue_keys, blocking, connection=None):
"""Helper method. Intermediate method to abstract away from some
Redis API details, where LPOP accepts only a single key, whereas BLPOP
accepts multiple. So if we want the non-blocking LPOP, we need to
iterate over all queues, do individual LPOPs, and return the result.
Until Redis receives a specific method for this, we'll have to wrap it
this way.
"""
connection = resolve_connection(connection)
timestamp = int(time.time())
for queue_key in queue_keys:
values = connection.zrevrangebyscore(queue_key, timestamp, 0)
if values:
connection.zremrangebyscore(queue_key, 0, timestamp)
yield queue_key, values
def lpop(cls, queue_keys, blocking, connection=None):
"""Helper method. Intermediate method to abstract away from some
Redis API details, where LPOP accepts only a single key, whereas BLPOP
accepts multiple. So if we want the non-blocking LPOP, we need to
iterate over all queues, do individual LPOPs, and return the result.
Until Redis receives a specific method for this, we'll have to wrap it
this way.
"""
connection = resolve_connection(connection)
timestamp = int(time.time())
for queue_key in queue_keys:
values = connection.zrevrangebyscore(queue_key, timestamp, 0)
if values:
connection.zremrangebyscore(queue_key, 0, timestamp)
yield queue_key, values
def empty_registry(registry_name, queue_name, connection=None):
"""Empties a specific registry for a specific queue, Not in RQ, implemented
here for performance reasons
"""
redis_connection = resolve_connection(connection)
queue_instance = Queue.from_queue_key(Queue.redis_queue_namespace_prefix +
queue_name)
registry_instance = None
if registry_name == 'failed':
registry_instance = queue_instance.failed_job_registry
elif registry_name == 'started':
registry_instance = queue_instance.started_job_registry
elif registry_name == 'scheduled':
registry_instance = queue_instance.scheduled_job_registry
elif registry_name == 'deferred':
registry_instance = queue_instance.deferred_job_registry
elif registry_name == 'finished':
registry_instance = queue_instance.finished_job_registry
script = """
local prefix = "{0}"
local q = KEYS[1]
local count = 0
while true do
local job_id, score = unpack(redis.call("zpopmin", q))
if job_id == nil or score == nil then
break
end
-- Delete the relevant keys
redis.call("del", prefix..job_id)
redis.call("del", prefix..job_id..":dependents")
count = count + 1
end
return count
""".format(
registry_instance.job_class.redis_job_namespace_prefix).encode("utf-8")
script = redis_connection.register_script(script)
return script(keys=[registry_instance.key])
def get_job_ids(self,
offset=0,
length=-1,
sort_key='created_at',
sort_order='asc'):
"""
Builds list of all failed jobs.
Will be incredibly slow and memory-consuming in case of too many failed jobs,
but leaving It this way for simplicity.
"""
if sort_order not in ('asc', 'desc'):
raise ValueError('Invalid sort_order: %s' % sort_order)
if self._job_ids is None:
result = []
key_template = 'rq:job:{job_id}'
for queue, registry in self._registries:
job_ids = registry.get_job_ids()
connection = resolve_connection(queue.connection)
pipeline = connection.pipeline()
for job_id in job_ids:
pipeline.hget(key_template.format(job_id=job_id), sort_key)
creation_dates = pipeline.execute()
result.extend(zip(job_ids, creation_dates))
# Sorting failed jobs globally
result.sort(key=lambda pair: pair[1] or b'',
reverse=(sort_order == 'desc'))
self._job_ids = [pair[0] for pair in result]
# Dirty hack to turn redis range to python list range
start = offset
if length >= 0:
end = offset + length
else:
end = length
if length == -1:
return self._job_ids[start:]
return self._job_ids[start:end]
def __init__(self, queue_name='default', interval=60, connection=None):
self.connection = resolve_connection(connection)
self.queue_name = queue_name
self._interval = interval
self.log = logger
def __init__(self, queue_name='default', interval=60, connection=None):
self.connection = resolve_connection(connection)
self.queue_name = queue_name
self._interval = interval
self.log = logger
def test_01_redis_running(self):
conn = resolve_connection()
try:
conn.echo('ping')
except ConnectionError:
print 'No connection; redis is not running. Start the redis server.'
def from_name(cls, queue_name, connection=None):
connection = resolve_connection(connection)
queue = RestQueue(queue_name, connection=connection)
return queue if queue.is_rest() else None