def __init__(self, uri, control_uri, attributes=None):
super(Node, self).__init__()
self.uri = uri
self.control_uri = control_uri
try:
self.attributes = AttributeResolver(attributes)
except:
_log.exception("Attributes not correct, uses empty attribute!")
self.attributes = AttributeResolver(None)
self.id = calvinuuid.uuid("NODE")
self.monitor = Event_Monitor()
self.am = actormanager.ActorManager(self)
self.control = calvincontrol.get_calvincontrol()
_scheduler = scheduler.DebugScheduler if _log.getEffectiveLevel() <= logging.DEBUG else scheduler.Scheduler
self.sched = _scheduler(self, self.am, self.monitor)
self.control.start(node=self, uri=control_uri)
self.async_msg_ids = {}
self._calvinsys = CalvinSys(self)
# Default will multicast and listen on all interfaces
# TODO: be able to specify the interfaces
# @TODO: Store capabilities
self.storage = storage.Storage(self)
self.network = CalvinNetwork(self)
self.proto = CalvinProto(self, self.network)
self.pm = PortManager(self, self.proto)
self.app_manager = appmanager.AppManager(self)
# The initialization that requires the main loop operating is deferred to start function
async.DelayedCall(0, self.start)
def __init__(self, uri, control_uri, attributes=None):
super(Node, self).__init__()
self.uri = uri
self.control_uri = control_uri
self.attributes = attributes
self.id = calvinuuid.uuid("NODE")
_log.debug("Calvin init 1")
self.monitor = Event_Monitor()
_log.debug("Calvin init 2")
self.am = actormanager.ActorManager(self)
_log.debug("Calvin init 3")
self.control = calvincontrol.get_calvincontrol()
_log.debug("Calvin init 4")
self.sched = scheduler.Scheduler(self, self.am, self.monitor)
_log.debug("Calvin init 5")
self.control.start(node=self, uri=control_uri)
self.async_msg_ids = {}
_log.debug("Calvin init 6")
self.storage = storage.Storage()
self.storage.start()
_log.debug("Calvin init 7")
self.network = CalvinNetwork(self)
_log.debug("Calvin init 8")
self.proto = CalvinProto(self, self.network)
self.pm = PortManager(self, self.proto)
_log.debug("Calvin init 9")
self.app_manager = appmanager.AppManager(self)
_log.debug("Calvin init 10")
# The initialization that requires the main loop operating is deferred to start function
async.DelayedCall(0, self.start)
_log.debug("Calvin init 11")
def __init__(self, uri, control_uri, attributes=None):
super(Node, self).__init__()
self.uri = uri
self.control_uri = control_uri
self.external_uri = attributes.pop('external_uri', self.uri) \
if attributes else self.uri
self.external_control_uri = attributes.pop('external_control_uri', self.control_uri) \
if attributes else self.control_uri
try:
self.attributes = AttributeResolver(attributes)
except:
_log.exception("Attributes not correct, uses empty attribute!")
self.attributes = AttributeResolver(None)
self.node_name = self.attributes.get_node_name_as_str()
# Obtain node id, when using security also handle runtime certificate
self.id = certificate.obtain_cert_node_info(self.node_name)['id']
self.authentication = authentication.Authentication(self)
self.authorization = authorization.Authorization(self)
try:
self.domain = _conf.get("security", "security_domain_name")
# cert_name is the node's certificate filename (without file extension)
self.cert_name = certificate.get_own_cert_name(self.node_name)
except:
self.domain = None
self.cert_name = None
self.metering = metering.set_metering(metering.Metering(self))
self.monitor = Event_Monitor()
self.am = actormanager.ActorManager(self)
self.control = calvincontrol.get_calvincontrol()
_scheduler = scheduler.DebugScheduler if _log.getEffectiveLevel() <= logging.DEBUG else scheduler.Scheduler
self.sched = _scheduler(self, self.am, self.monitor)
self.async_msg_ids = {}
self._calvinsys = CalvinSys(self)
# Default will multicast and listen on all interfaces
# TODO: be able to specify the interfaces
# @TODO: Store capabilities
self.storage = storage.Storage(self)
self.network = CalvinNetwork(self)
self.proto = CalvinProto(self, self.network)
self.pm = PortManager(self, self.proto)
self.app_manager = appmanager.AppManager(self)
# The initialization that requires the main loop operating is deferred to start function
async.DelayedCall(0, self.start)
def __init__(self, uri, control_uri, attributes=None):
super(Node, self).__init__()
self.uri = uri
self.control_uri = control_uri
self.attributes = attributes
self.id = calvinuuid.uuid("NODE")
self.monitor = Event_Monitor()
self.am = actormanager.ActorManager(self)
self.control = calvincontrol.get_calvincontrol()
_scheduler = scheduler.DebugScheduler if _log.getEffectiveLevel() <= logging.DEBUG else scheduler.Scheduler
self.sched = _scheduler(self, self.am, self.monitor)
self.control.start(node=self, uri=control_uri)
self.async_msg_ids = {}
self.storage = storage.Storage()
self.storage.start()
self.network = CalvinNetwork(self)
self.proto = CalvinProto(self, self.network)
self.pm = PortManager(self, self.proto)
self.app_manager = appmanager.AppManager(self)
# The initialization that requires the main loop operating is deferred to start function
# FIXME: Don't use delayed call in calvin-tiny
async.DelayedCall(0, self.start)
def __init__(self, uri, control_uri, attributes=None, self_start=True):
super(Node, self).__init__()
self.uri = uri
self.control_uri = control_uri
try:
self.attributes = AttributeResolver(attributes)
except:
_log.exception("Attributes not correct, uses empty attribute!")
self.attributes = AttributeResolver(None)
self.id = calvinuuid.uuid("NODE")
self.metering = metering.set_metering(metering.Metering(self))
self.monitor = Event_Monitor()
self.am = actormanager.ActorManager(self)
self.control = calvincontrol.get_calvincontrol()
_scheduler = scheduler.DebugScheduler if _log.getEffectiveLevel() <= logging.DEBUG else scheduler.Scheduler
self.sched = _scheduler(self, self.am, self.monitor)
self.async_msg_ids = {}
self._calvinsys = CalvinSys(self)
hb_timeout = _conf.get('global', 'heartbeat_timeout') or DEFAULT_HEARTBEAT_TIMEOUT
self.heartbeat_timeout = float(hb_timeout)
hb_delay = _conf.get('global', 'heartbeat_delay') or DEFAULT_HEARTBEAT_DELAY
self.heartbeat_delay = float(hb_delay)
self.heartbeat_addr = self._clean_addr()
self.heartbeat_port = _conf.get('global', 'heartbeat_port') or int(self._clean_uri().split(":")[1]) + DEFAULT_HEARTBEAT_PORT_DIFF
rr_delay = _conf.get('global', 'resource_reporter_delay') or 0.25
self.resource_reporter_delay = float(rr_delay)
# Default will multicast and listen on all interfaces
# TODO: be able to specify the interfaces
# @TODO: Store capabilities
self.storage = storage.Storage(self)
self.network = CalvinNetwork(self)
self.proto = CalvinProto(self, self.network)
self.pm = PortManager(self, self.proto)
self.app_manager = appmanager.AppManager(self)
self.resource_manager = ResourceManager()
self.app_monitor = AppMonitor(self, self.app_manager, self.storage)
self.lost_node_handler = LostNodeHandler(self, self.resource_manager, self.pm, self.am, self.storage)
self.heartbeat_actor = None
self.outgoing_heartbeats = defaultdict(list)
# The initialization that requires the main loop operating is deferred to start function
if self_start:
async.DelayedCall(0, self.start)
def __init__(self, uris, control_uri, attributes=None):
super(Node, self).__init__()
self.quitting = False
# Warn if its not a uri
if not isinstance(uris, list):
_log.error("Calvin uris must be a list %s" % uris)
raise TypeError("Calvin uris must be a list!")
# Uris
self.uris = uris
if attributes:
ext_uris = attributes.pop('external_uri', None)
if ext_uris is not None:
self.uris += ext_uris
# Control uri
self.control_uri = control_uri
self.external_control_uri = attributes.pop('external_control_uri', self.control_uri) \
if attributes else self.control_uri
try:
self.attributes = AttributeResolver(attributes)
except:
_log.exception("Attributes not correct, uses empty attribute!")
self.attributes = AttributeResolver(None)
self.node_name = self.attributes.get_node_name_as_str()
# Obtain node id, when using security also handle runtime certificate
try:
security_dir = _conf.get("security", "security_dir")
self.runtime_credentials = RuntimeCredentials(self.node_name, node=self, security_dir=security_dir)
self.id = self.runtime_credentials.get_node_id()
except Exception as err:
_log.debug("No runtime credentials, err={}".format(err))
self.runtime_credentials = None
self.id = calvinuuid.uuid("Node")
self.certificate_authority = certificate_authority.CertificateAuthority(self)
self.authentication = authentication.Authentication(self)
self.authorization = authorization.Authorization(self)
self.metering = metering.set_metering(metering.Metering(self))
self.monitor = Event_Monitor()
self.am = actormanager.ActorManager(self)
self.rm = replicationmanager.ReplicationManager(self)
self.control = calvincontrol.get_calvincontrol()
_scheduler = scheduler.DebugScheduler if _log.getEffectiveLevel() <= logging.DEBUG else scheduler.Scheduler
self.sched = _scheduler(self, self.am, self.monitor)
self.async_msg_ids = {}
self._calvinsys = CalvinSys(self)
calvinsys = get_calvinsys()
calvinsys.init(self)
calvinlib = get_calvinlib()
calvinlib.init(self)
# Default will multicast and listen on all interfaces
# TODO: be able to specify the interfaces
# @TODO: Store capabilities
self.storage = storage.Storage(self)
self.network = CalvinNetwork(self)
self.proto = CalvinProto(self, self.network)
self.pm = PortManager(self, self.proto)
self.app_manager = appmanager.AppManager(self)
# The initialization that requires the main loop operating is deferred to start function
async.DelayedCall(0, self.start)
class Node(object):
"""A node of calvin
the uri is a list of server connection points
the control_uri is the local console
attributes is a supplied list of external defined attributes that will be used as the key when storing index
such as name of node
"""
def __init__(self, uris, control_uri, attributes=None):
super(Node, self).__init__()
self.quitting = False
# Warn if its not a uri
if not isinstance(uris, list):
_log.error("Calvin uris must be a list %s" % uris)
raise TypeError("Calvin uris must be a list!")
# Uris
self.uris = uris
if attributes:
ext_uris = attributes.pop('external_uri', None)
if ext_uris is not None:
self.uris += ext_uris
# Control uri
self.control_uri = control_uri
self.external_control_uri = attributes.pop('external_control_uri', self.control_uri) \
if attributes else self.control_uri
try:
self.attributes = AttributeResolver(attributes)
except:
_log.exception("Attributes not correct, uses empty attribute!")
self.attributes = AttributeResolver(None)
self.node_name = self.attributes.get_node_name_as_str()
# Obtain node id, when using security also handle runtime certificate
try:
security_dir = _conf.get("security", "security_dir")
self.runtime_credentials = RuntimeCredentials(self.node_name, node=self, security_dir=security_dir)
self.id = self.runtime_credentials.get_node_id()
except Exception as err:
_log.debug("No runtime credentials, err={}".format(err))
self.runtime_credentials = None
self.id = calvinuuid.uuid("Node")
self.certificate_authority = certificate_authority.CertificateAuthority(self)
self.authentication = authentication.Authentication(self)
self.authorization = authorization.Authorization(self)
self.metering = metering.set_metering(metering.Metering(self))
self.monitor = Event_Monitor()
self.am = actormanager.ActorManager(self)
self.rm = replicationmanager.ReplicationManager(self)
self.control = calvincontrol.get_calvincontrol()
_scheduler = scheduler.DebugScheduler if _log.getEffectiveLevel() <= logging.DEBUG else scheduler.Scheduler
self.sched = _scheduler(self, self.am, self.monitor)
self.async_msg_ids = {}
self._calvinsys = CalvinSys(self)
calvinsys = get_calvinsys()
calvinsys.init(self)
calvinlib = get_calvinlib()
calvinlib.init(self)
# Default will multicast and listen on all interfaces
# TODO: be able to specify the interfaces
# @TODO: Store capabilities
self.storage = storage.Storage(self)
self.network = CalvinNetwork(self)
self.proto = CalvinProto(self, self.network)
self.pm = PortManager(self, self.proto)
self.app_manager = appmanager.AppManager(self)
# The initialization that requires the main loop operating is deferred to start function
async.DelayedCall(0, self.start)
def insert_local_reply(self):
msg_id = calvinuuid.uuid("LMSG")
self.async_msg_ids[msg_id] = None
return msg_id
def set_local_reply(self, msg_id, reply):
if msg_id in self.async_msg_ids:
self.async_msg_ids[msg_id] = reply
def connect(self, actor_id=None, port_name=None, port_dir=None, port_properties=None, port_id=None,
peer_node_id=None, peer_actor_id=None, peer_port_name=None,
peer_port_dir=None, peer_port_properties=None, peer_port_id=None, cb=None):
if port_properties is None and port_dir is not None:
port_properties = {'direction': port_dir}
if peer_port_properties is None and peer_port_dir is not None:
peer_port_properties = {'direction': peer_port_dir}
self.pm.connect(actor_id=actor_id,
port_name=port_name,
port_properties=port_properties,
port_id=port_id,
peer_node_id=peer_node_id,
peer_actor_id=peer_actor_id,
peer_port_name=peer_port_name,
peer_port_properties=peer_port_properties,
peer_port_id=peer_port_id,
callback=CalvinCB(self.logging_callback, preamble="connect cb") if cb is None else cb)
def peersetup(self, peers, cb=None):
""" Sets up a RT to RT communication channel, only needed if the peer can't be found in storage.
peers: a list of peer uris, e.g. ["calvinip://127.0.0.1:5001"]
"""
_log.debug("peersetup(%s)" % (peers))
peers_copy = peers[:]
peer_node_ids = {}
if not cb:
callback = CalvinCB(self.logging_callback, preamble="peersetup cb")
else:
callback = CalvinCB(self.peersetup_collect_cb, peers=peers_copy, peer_node_ids=peer_node_ids, org_cb=cb)
self.network.join(peers, callback=callback)
def peersetup_collect_cb(self, status, uri, peer_node_id, peer_node_ids, peers, org_cb):
if uri in peers:
peers.remove(uri)
peer_node_ids[uri] = (peer_node_id, status)
if not peers:
# Get highest status, i.e. any error
comb_status = max([s for _, s in peer_node_ids.values()])
org_cb(peer_node_ids=peer_node_ids, status=comb_status)
def logging_callback(self, preamble=None, *args, **kwargs):
_log.debug("\n%s# NODE: %s \n# %s %s %s \n%s" %
('#' * 40, self.id, preamble if preamble else "*", args, kwargs, '#' * 40))
def new(self, actor_type, args, deploy_args=None, state=None, prev_connections=None, connection_list=None):
# TODO requirements should be input to am.new
# TODO: make it possible to use security/credentials here.
actor_def, signer = self.am.lookup_and_verify(actor_type)
actor_id = self.am.new(actor_type, args, state, prev_connections, connection_list,
signature=deploy_args['signature'] if deploy_args and 'signature' in deploy_args else None,
actor_def=actor_def)
if deploy_args:
app_id = deploy_args['app_id']
if 'app_name' not in deploy_args:
app_name = app_id
else:
app_name = deploy_args['app_name']
self.app_manager.add(app_id, actor_id,
deploy_info = deploy_args['deploy_info'] if 'deploy_info' in deploy_args else None)
return actor_id
def calvinsys(self):
"""Return a CalvinSys instance"""
# FIXME: We still need to sort out actor requirements vs. node capabilities and user permissions.
# @TODO: Write node capabilities to storage
return self._calvinsys
#
# Event loop
#
def run(self):
"""main loop on node"""
_log.debug("Node %s is running" % self.id)
self.sched.run()
def start(self):
""" Run once when main loop is started """
interfaces = _conf.get(None, 'transports')
self.network.register(interfaces, ['json'])
self.network.start_listeners(self.uris)
# Start storage after network, proto etc since storage proxy expects them
self.storage.start(cb=CalvinCB(self._storage_started_cb))
self.storage.add_node(self)
# Start control API
proxy_control_uri = _conf.get(None, 'control_proxy')
_log.debug("Start control API on %s with uri: %s and proxy: %s" % (self.id, self.control_uri, proxy_control_uri))
if proxy_control_uri is not None:
self.control.start(node=self, uri=proxy_control_uri, tunnel=True)
else:
if self.control_uri is not None:
self.control.start(node=self, uri=self.control_uri, external_uri=self.external_control_uri)
def stop(self, callback=None):
# TODO: Handle blocking in poorly implemented calvinsys/runtime south.
self.quitting = True
def stopped(*args):
_log.analyze(self.id, "+", {'args': args})
_log.debug(args)
self.sched.stop()
_log.analyze(self.id, "+ SCHED STOPPED", {'args': args})
self.control.stop()
_log.analyze(self.id, "+ CONTROL STOPPED", {'args': args})
def deleted_node(*args, **kwargs):
_log.analyze(self.id, "+", {'args': args, 'kwargs': kwargs})
self.storage.stop(stopped)
_log.analyze(self.id, "+", {})
self.storage.delete_node(self, cb=deleted_node)
for link in self.network.list_direct_links():
self.network.link_get(link).close()
def stop_with_cleanup(self):
# Set timeout in case some actor is refusing to stop (or leave if already migrating)
timeout = async.DelayedCall(50, self.stop)
self.quitting = True
# get all actors
if not self.am.actors:
# No actors, we're basically done
return self.stop()
actors = []
for actor in self.am.actors.values():
# Do not delete migrating actors (for now)
if actor._migrating_to is None:
actors.append(actor)
# delete all actors
for actor in actors:
self.am.destroy(actor.id)
# and die - hopefully, things should clean up nicely within reasonable time
def poll_deleted(retry):
if self.am.actors:
_log.info("{} actors remaining, rechecking in {} secs".format(len(self.am.actors)))
async.DelayedCall(1*retry, poll_deleted)
else :
_log.info("All done, exiting")
timeout.cancel()
self.stop()
async.DelayedCall(0.5, poll_deleted, retry=1)
def stop_with_migration(self, callback=None):
# Set timeout if we are still failing after 50 seconds
timeout_stop = async.DelayedCall(50, self.stop)
self.quitting = True
actors = []
already_migrating = []
if not self.am.actors:
return self.stop(callback)
for actor in self.am.actors.values():
if actor._migrating_to is None:
actors.append(actor)
else:
already_migrating.append(actor.id)
def poll_migrated():
# When already migrating, we can only poll, since we don't get the callback
if self.am.actors:
# Check again in a sec
async.DelayedCall(1, poll_migrated)
return
timeout_stop.cancel()
self.stop(callback)
def migrated(actor_id, **kwargs):
actor = self.am.actors.get(actor_id, None)
status = kwargs['status']
if actor is not None:
# Failed to migrate according to requirements, try the current known peers
peer_ids = self.network.list_direct_links()
if peer_ids:
# This will remove the actor from the list of actors
self.am.robust_migrate(actor_id, peer_ids, callback=CalvinCB(migrated, actor_id=actor_id))
return
else:
# Ok, we have failed migrate actor according to requirements and to any known peer
# FIXME find unknown peers and try migrate to them, now just destroy actor, so storage is cleaned
_log.error("Failed to evict actor %s before quitting" % actor_id)
self.am.destroy(actor_id)
if self.am.actors:
return
timeout_stop.cancel()
self.stop(callback)
if already_migrating:
async.DelayedCall(1, poll_migrated)
if not actors:
return
elif not actors:
# No actors
return self.stop(callback)
# Migrate the actors according to their requirements
# (even actors without explicit requirements will migrate based on e.g. requires and port property needs)
for actor in actors:
if actor._replication_data.terminate_with_node(actor.id):
_log.info("TERMINATE REPLICA")
self.rm.terminate(actor.id, callback=CalvinCB(migrated, actor_id=actor.id))
else:
_log.info("TERMINATE MIGRATE ACTOR")
self.am.update_requirements(actor.id, [], extend=True, move=True,
authorization_check=False, callback=CalvinCB(migrated, actor_id=actor.id))
def _storage_started_cb(self, *args, **kwargs):
self.authentication.find_authentication_server()
self.authorization.register_node()
class Node(object):
"""A node of calvin
the uri is used as server connection point
the control_uri is the local console
attributes is a supplied list of external defined attributes that will be used as the key when storing index
such as name of node
"""
def __init__(self, uri, control_uri, attributes=None):
super(Node, self).__init__()
self.uri = uri
self.control_uri = control_uri
self.attributes = attributes
self.id = calvinuuid.uuid("NODE")
self.monitor = Event_Monitor()
self.am = actormanager.ActorManager(self)
self.control = calvincontrol.get_calvincontrol()
_scheduler = scheduler.DebugScheduler if _log.getEffectiveLevel() <= logging.DEBUG else scheduler.Scheduler
self.sched = _scheduler(self, self.am, self.monitor)
self.control.start(node=self, uri=control_uri)
self.async_msg_ids = {}
self.storage = storage.Storage()
self.storage.start()
self.network = CalvinNetwork(self)
self.proto = CalvinProto(self, self.network)
self.pm = PortManager(self, self.proto)
self.app_manager = appmanager.AppManager(self)
# The initialization that requires the main loop operating is deferred to start function
# FIXME: Don't use delayed call in calvin-tiny
async.DelayedCall(0, self.start)
# self.start()
def insert_local_reply(self):
msg_id = calvinuuid.uuid("LMSG")
self.async_msg_ids[msg_id] = None
return msg_id
def set_local_reply(self, msg_id, reply):
if msg_id in self.async_msg_ids:
self.async_msg_ids[msg_id] = reply
def connect(self, actor_id=None, port_name=None, port_dir=None, port_id=None,
peer_node_id=None, peer_actor_id=None, peer_port_name=None,
peer_port_dir=None, peer_port_id=None):
# FIXME callback needed to send back a proper reply !!!!!
self.pm.connect(actor_id=actor_id,
port_name=port_name,
port_dir=port_dir,
port_id=port_id,
peer_node_id=peer_node_id,
peer_actor_id=peer_actor_id,
peer_port_name=peer_port_name,
peer_port_dir=peer_port_dir,
peer_port_id=peer_port_id,
callback=CalvinCB(self.logging_callback, preamble="connect cb"))
def disconnect(self, actor_id=None, port_name=None, port_dir=None, port_id=None):
# FIXME callback needed to send back a proper reply !!!!!
_log.debug("disconnect(actor_id=%s, port_name=%s, port_dir=%s, port_id=%s)" %
(actor_id if actor_id else "", port_name if port_name else "",
port_dir if port_dir else "", port_id if port_id else ""))
self.pm.disconnect(actor_id=actor_id, port_name=port_name,
port_dir=port_dir, port_id=port_id,
callback=CalvinCB(self.logging_callback, preamble="disconnect cb"))
def peersetup(self, peers):
""" Sets up a RT to RT communication channel, only needed if the peer can't be found in storage.
peers: a list of peer uris, e.g. ["calvinip://127.0.0.1:5001"]
"""
# FIXME callback needed to send back a proper reply !!!!!
_log.debug("peersetup(%s)" % (peers))
self.network.join(peers, callback=CalvinCB(self.logging_callback, preamble="peersetup cb"))
def logging_callback(self, preamble=None, *args, **kwargs):
_log.debug("\n%s# NODE: %s \n# %s %s %s \n%s" %
('#' * 40, self.id, preamble if preamble else "*", args, kwargs, '#' * 40))
def new(self, actor_type, args, deploy_args=None, state=None, prev_connections=None, connection_list=None):
actor_id = self.am.new(actor_type, args, state, prev_connections, connection_list)
if deploy_args:
app_id = deploy_args['app_id']
if 'app_name' not in deploy_args:
app_name = app_id
else:
app_name = deploy_args['app_name']
self.app_manager.add(app_id, app_name, actor_id)
return actor_id
def calvinsys(self, actor):
"""Return a CalvinSys instance"""
# FIXME: We still need to sort out actor requirements vs. node capabilities and user permissions.
return CalvinSys(actor, self)
#
# Event loop
#
def run(self):
"""main loop on node"""
_log.debug("Node %s is running" % self.id)
self.sched.run()
def start(self):
""" Run once when main loop is started """
# FIXME hardcoded which transport and encoder plugin we use, should be based on
self.network.register(['calvinip'], ['json'])
self.network.start_listeners([self.uri])
self.storage.add_node(self)
def stop(self, callback=None):
def stopped(*args):
_log.debug(args)
self.sched.stop()
self.control.stop()
def deleted_node(*args, **kwargs):
self.storage.stop(stopped)
self.storage.delete_node(self, cb=deleted_node)
class Node(object):
"""A node of calvin
the uri is a list of server connection points
the control_uri is the local console
attributes is a supplied list of external defined attributes that will be used as the key when storing index
such as name of node
"""
def __init__(self, uri, control_uri, attributes=None):
super(Node, self).__init__()
self.uri = uri
self.control_uri = control_uri
self.external_uri = attributes.pop('external_uri', self.uri) \
if attributes else self.uri
self.external_control_uri = attributes.pop('external_control_uri', self.control_uri) \
if attributes else self.control_uri
try:
self.attributes = AttributeResolver(attributes)
except:
_log.exception("Attributes not correct, uses empty attribute!")
self.attributes = AttributeResolver(None)
# Obtain node id, when using security also handle runtime certificate
self.id = certificate.obtain_cert_node_info(self.attributes.get_node_name_as_str())['id']
self.metering = metering.set_metering(metering.Metering(self))
self.monitor = Event_Monitor()
self.am = actormanager.ActorManager(self)
self.control = calvincontrol.get_calvincontrol()
_scheduler = scheduler.DebugScheduler if _log.getEffectiveLevel() <= logging.DEBUG else scheduler.Scheduler
self.sched = _scheduler(self, self.am, self.monitor)
self.async_msg_ids = {}
self._calvinsys = CalvinSys(self)
# Default will multicast and listen on all interfaces
# TODO: be able to specify the interfaces
# @TODO: Store capabilities
self.storage = storage.Storage(self)
self.network = CalvinNetwork(self)
self.proto = CalvinProto(self, self.network)
self.pm = PortManager(self, self.proto)
self.app_manager = appmanager.AppManager(self)
# The initialization that requires the main loop operating is deferred to start function
async.DelayedCall(0, self.start)
def insert_local_reply(self):
msg_id = calvinuuid.uuid("LMSG")
self.async_msg_ids[msg_id] = None
return msg_id
def set_local_reply(self, msg_id, reply):
if msg_id in self.async_msg_ids:
self.async_msg_ids[msg_id] = reply
def connect(self, actor_id=None, port_name=None, port_dir=None, port_id=None,
peer_node_id=None, peer_actor_id=None, peer_port_name=None,
peer_port_dir=None, peer_port_id=None, cb=None):
self.pm.connect(actor_id=actor_id,
port_name=port_name,
port_dir=port_dir,
port_id=port_id,
peer_node_id=peer_node_id,
peer_actor_id=peer_actor_id,
peer_port_name=peer_port_name,
peer_port_dir=peer_port_dir,
peer_port_id=peer_port_id,
callback=CalvinCB(self.logging_callback, preamble="connect cb") if cb is None else cb)
def disconnect(self, actor_id=None, port_name=None, port_dir=None, port_id=None, cb=None):
_log.debug("disconnect(actor_id=%s, port_name=%s, port_dir=%s, port_id=%s)" %
(actor_id if actor_id else "", port_name if port_name else "",
port_dir if port_dir else "", port_id if port_id else ""))
self.pm.disconnect(actor_id=actor_id, port_name=port_name,
port_dir=port_dir, port_id=port_id,
callback=CalvinCB(self.logging_callback, preamble="disconnect cb") if cb is None else cb)
def peersetup(self, peers, cb=None):
""" Sets up a RT to RT communication channel, only needed if the peer can't be found in storage.
peers: a list of peer uris, e.g. ["calvinip://127.0.0.1:5001"]
"""
_log.debug("peersetup(%s)" % (peers))
peers_copy = peers[:]
peer_node_ids = {}
if not cb:
callback = CalvinCB(self.logging_callback, preamble="peersetup cb")
else:
callback = CalvinCB(self.peersetup_collect_cb, peers=peers_copy, peer_node_ids=peer_node_ids, org_cb=cb)
self.network.join(peers, callback=callback)
def peersetup_collect_cb(self, status, uri, peer_node_id, peer_node_ids, peers, org_cb):
if uri in peers:
peers.remove(uri)
peer_node_ids[uri] = (peer_node_id, status)
if not peers:
# Get highest status, i.e. any error
comb_status = max([s for _, s in peer_node_ids.values()])
org_cb(peer_node_ids=peer_node_ids, status=comb_status)
def logging_callback(self, preamble=None, *args, **kwargs):
_log.debug("\n%s# NODE: %s \n# %s %s %s \n%s" %
('#' * 40, self.id, preamble if preamble else "*", args, kwargs, '#' * 40))
def new(self, actor_type, args, deploy_args=None, state=None, prev_connections=None, connection_list=None):
# TODO requirements should be input to am.new
actor_id = self.am.new(actor_type, args, state, prev_connections, connection_list,
signature=deploy_args['signature'] if deploy_args and 'signature' in deploy_args else None,
credentials=deploy_args['credentials'] if deploy_args and 'credentials' in deploy_args else None)
if deploy_args:
app_id = deploy_args['app_id']
if 'app_name' not in deploy_args:
app_name = app_id
else:
app_name = deploy_args['app_name']
self.app_manager.add(app_id, actor_id,
deploy_info = deploy_args['deploy_info'] if 'deploy_info' in deploy_args else None)
return actor_id
def calvinsys(self):
"""Return a CalvinSys instance"""
# FIXME: We still need to sort out actor requirements vs. node capabilities and user permissions.
# @TODO: Write node capabilities to storage
return self._calvinsys
#
# Event loop
#
def run(self):
"""main loop on node"""
_log.debug("Node %s is running" % self.id)
self.sched.run()
def start(self):
""" Run once when main loop is started """
interfaces = _conf.get(None, 'transports')
self.network.register(interfaces, ['json'])
self.network.start_listeners(self.uri)
# Start storage after network, proto etc since storage proxy expects them
self.storage.start()
self.storage.add_node(self)
# Start control api
proxy_control_uri = _conf.get(None, 'control_proxy')
_log.debug("Start control API on %s with uri: %s and proxy: %s" % (self.id, self.control_uri, proxy_control_uri))
if proxy_control_uri is not None:
self.control.start(node=self, uri=proxy_control_uri, tunnel=True)
else:
if self.control_uri is not None:
self.control.start(node=self, uri=self.control_uri)
def stop(self, callback=None):
def stopped(*args):
_log.analyze(self.id, "+", {'args': args})
_log.debug(args)
self.sched.stop()
_log.analyze(self.id, "+ SCHED STOPPED", {'args': args})
self.control.stop()
_log.analyze(self.id, "+ CONTROL STOPPED", {'args': args})
def deleted_node(*args, **kwargs):
_log.analyze(self.id, "+", {'args': args, 'kwargs': kwargs})
self.storage.stop(stopped)
_log.analyze(self.id, "+", {})
self.storage.delete_node(self, cb=deleted_node)
class Node(object):
"""A node of calvin
the uri is a list of server connection points
the control_uri is the local console
attributes is a supplied list of external defined attributes that will be used as the key when storing index
such as name of node
"""
def __init__(self, uri, control_uri, attributes=None, self_start=True):
super(Node, self).__init__()
self.uri = uri
self.control_uri = control_uri
try:
self.attributes = AttributeResolver(attributes)
except:
_log.exception("Attributes not correct, uses empty attribute!")
self.attributes = AttributeResolver(None)
self.id = calvinuuid.uuid("NODE")
self.metering = metering.set_metering(metering.Metering(self))
self.monitor = Event_Monitor()
self.am = actormanager.ActorManager(self)
self.control = calvincontrol.get_calvincontrol()
_scheduler = scheduler.DebugScheduler if _log.getEffectiveLevel() <= logging.DEBUG else scheduler.Scheduler
self.sched = _scheduler(self, self.am, self.monitor)
self.async_msg_ids = {}
self._calvinsys = CalvinSys(self)
hb_timeout = _conf.get('global', 'heartbeat_timeout') or DEFAULT_HEARTBEAT_TIMEOUT
self.heartbeat_timeout = float(hb_timeout)
hb_delay = _conf.get('global', 'heartbeat_delay') or DEFAULT_HEARTBEAT_DELAY
self.heartbeat_delay = float(hb_delay)
self.heartbeat_addr = self._clean_addr()
self.heartbeat_port = _conf.get('global', 'heartbeat_port') or int(self._clean_uri().split(":")[1]) + DEFAULT_HEARTBEAT_PORT_DIFF
rr_delay = _conf.get('global', 'resource_reporter_delay') or 0.25
self.resource_reporter_delay = float(rr_delay)
# Default will multicast and listen on all interfaces
# TODO: be able to specify the interfaces
# @TODO: Store capabilities
self.storage = storage.Storage(self)
self.network = CalvinNetwork(self)
self.proto = CalvinProto(self, self.network)
self.pm = PortManager(self, self.proto)
self.app_manager = appmanager.AppManager(self)
self.resource_manager = ResourceManager()
self.app_monitor = AppMonitor(self, self.app_manager, self.storage)
self.lost_node_handler = LostNodeHandler(self, self.resource_manager, self.pm, self.am, self.storage)
self.heartbeat_actor = None
self.outgoing_heartbeats = defaultdict(list)
# The initialization that requires the main loop operating is deferred to start function
if self_start:
async.DelayedCall(0, self.start)
@property
def storage_node(self):
return False
def is_storage_node(self, node_id):
if node_id == self.id:
return self.storage_node
#if node_id not in self.network.links:
# return False
return self.storage.proxy == self.network.links[node_id].transport.get_uri()
def _clean_uri(self):
return self.control_uri.replace("http://", "")
def _clean_addr(self):
uri = self._clean_uri()
if uri == "localhost":
addr = socket.gethostbyname(uri.split(":")[0])
else:
addr = uri.split(":")[0]
return addr
def insert_local_reply(self):
msg_id = calvinuuid.uuid("LMSG")
self.async_msg_ids[msg_id] = None
return msg_id
def set_local_reply(self, msg_id, reply):
if msg_id in self.async_msg_ids:
self.async_msg_ids[msg_id] = reply
def connect(self, actor_id=None, port_name=None, port_dir=None, port_id=None,
peer_node_id=None, peer_actor_id=None, peer_port_name=None,
peer_port_dir=None, peer_port_id=None, cb=None):
self.pm.connect(actor_id=actor_id,
port_name=port_name,
port_dir=port_dir,
port_id=port_id,
peer_node_id=peer_node_id,
peer_actor_id=peer_actor_id,
peer_port_name=peer_port_name,
peer_port_dir=peer_port_dir,
peer_port_id=peer_port_id,
callback=CalvinCB(self.logging_callback, preamble="connect cb") if cb is None else cb)
def disconnect(self, actor_id=None, port_name=None, port_dir=None, port_id=None, cb=None):
_log.debug("disconnect(actor_id=%s, port_name=%s, port_dir=%s, port_id=%s)" %
(actor_id if actor_id else "", port_name if port_name else "",
port_dir if port_dir else "", port_id if port_id else ""))
self.pm.disconnect(actor_id=actor_id, port_name=port_name,
port_dir=port_dir, port_id=port_id,
callback=CalvinCB(self.logging_callback, preamble="disconnect cb") if cb is None else cb)
def peersetup(self, peers, cb=None):
""" Sets up a RT to RT communication channel, only needed if the peer can't be found in storage.
peers: a list of peer uris, e.g. ["calvinip://127.0.0.1:5001"]
"""
_log.info("peersetup(%s)" % (peers))
peers_copy = peers[:]
peer_node_ids = {}
if not cb:
callback = CalvinCB(self.logging_callback, preamble="peersetup cb")
else:
callback = CalvinCB(self.peersetup_collect_cb, peers=peers_copy, peer_node_ids=peer_node_ids, org_cb=cb)
peers = filter(None, peers)
self.network.join(peers, callback=callback)
def peersetup_collect_cb(self, status, uri, peer_node_id, peer_node_ids, peers, org_cb):
_log.debug("Peersetup collect cb: {} - {} - {} - {} - {}".format(status, uri, peer_node_id, peer_node_ids, peers))
self.resource_manager.register_uri(peer_node_id, uri)
if status:
self.resource_manager.register_uri(peer_node_id, uri)
self._register_heartbeat_receiver(peer_node_id)
if uri in peers:
peers.remove(uri)
peer_node_ids[uri] = (peer_node_id, status)
if not peers:
# Get highest status, i.e. any error
comb_status = max([s for _, s in peer_node_ids.values()])
org_cb(peer_node_ids=peer_node_ids, status=comb_status)
if peer_node_id and status:
self._send_rm_info(peer_node_id)
def _send_rm_info(self, peer_node_id):
# Send own info to new peers and retreive there info
callback = CalvinCB(self._send_rm_info_cb)
usages = self.resource_manager.sync_info()
self.proto.send_rm_info(peer_node_id, usages, callback)
def _send_rm_info_cb(self, status, *args, **kwargs):
# Receives other peers rm info
if status.data:
self.resource_manager.sync_info(status.data[0])
def sync_rm_info(self, usages, callback):
# sync received info
usages = self.resource_manager.sync_info(usages)
callback(usages, status=response.CalvinResponse(True))
def logging_callback(self, preamble=None, *args, **kwargs):
_log.debug("\n%s# NODE: %s \n# %s %s %s \n%s" %
('#' * 40, self.id, preamble if preamble else "*", args, kwargs, '#' * 40))
def new(self, actor_type, args, deploy_args=None, state=None, prev_connections=None, connection_list=None, callback=None):
# TODO requirements should be input to am.new
callback = CalvinCB(self._new, args=args, deploy_args=deploy_args, state=state, prev_connections=prev_connections,
connection_list=connection_list, callback=callback)
self.am.new(actor_type, args, state, prev_connections, connection_list,
app_id=deploy_args['app_id'] if deploy_args else None,
signature=deploy_args['signature'] if deploy_args and 'signature' in deploy_args else None, callback=callback)
def _new(self, actor_id, status, args, deploy_args, state, prev_connections, connection_list, callback):
if not status:
if callback:
callback(status=status, actor_id=actor_id)
return
if deploy_args:
app_id = deploy_args['app_id']
if 'app_name' not in deploy_args:
app_name = app_id
else:
app_name = deploy_args['app_name']
self.app_manager.add(app_id, actor_id,
deploy_info = deploy_args['deploy_info'] if 'deploy_info' in deploy_args else None)
if callback:
callback(status=status, actor_id=actor_id)
def deployment_control(self, app_id, actor_id, deploy_args):
""" Updates an actor's deployment """
self.am.deployment_control(app_id, actor_id, deploy_args)
def calvinsys(self):
"""Return a CalvinSys instance"""
# FIXME: We still need to sort out actor requirements vs. node capabilities and user permissions.
# @TODO: Write node capabilities to storage
return self._calvinsys
@property
def hostname(self):
return socket.gethostname()
@property
def testing(self):
return "CALVIN_TESTING" in os.environ and os.environ["CALVIN_TESTING"]
def report_resource_usage(self, usage):
_log.debug("Reporting resource usage for node {}: {}".format(self.id, usage))
self.resource_manager.register(self.id, usage, self.uri)
usage['uri'] = self.uri
for peer_id in self.network.list_links():
callback = CalvinCB(self._report_resource_usage_cb, peer_id)
self.proto.report_usage(peer_id, self.id, usage, callback=callback)
self.app_monitor.check_reliabilities()
def _report_resource_usage_cb(self, peer_id, status):
if not status:
_log.error("Failed to report resource usage to: {} - {} - {}".format(peer_id, self.resource_manager.node_uris.get(peer_id), status))
else:
_log.debug("Report resource usage callback received status {} for {}".format(status, peer_id))
def register_resource_usage(self, node_id, usage, callback):
if self.storage_node:
callback(status=response.CalvinResponse(True))
return
_log.debug("Registering resource usage for node {}: {}".format(node_id, usage))
uri = usage.get('uri')
self.resource_manager.register(node_id, usage, uri)
self._register_heartbeat_receiver(node_id)
callback(status=response.CalvinResponse(True))
def report_replication_time(self, actor_type, replication_time, node_id):
_log.info('New replication time: {} when handling lost node {}'.format(replication_time, node_id))
self.storage.new_replication_time(actor_type, replication_time)
def lost_node(self, node_id):
_log.debug("Lost node: {}".format(node_id))
_log.analyze(self.id, "+", "Lost node {}".format(node_id))
if self.storage_node:
_log.debug("{} Is storage node, ignoring lost node".format(self.id))
return
result = self.heartbeat_actor.receive()
nodes = set()
if result and result.production:
if node_id in result.production[0]:
return
if node_id in self.network.links:
link = self.network.links[node_id]
self.network.peer_disconnected(link, node_id, "Heartbeat timeout")
self.lost_node_handler.handle_lost_node(node_id)
def lost_node_request(self, node_id, cb):
_log.debug("Lost node: {}".format(node_id))
_log.analyze(self.id, "+", "Lost node {}".format(node_id))
if self.storage_node:
_log.debug("{} Is storage node, ignoring lost node".format(self.id))
if cb:
cb(status=response.CalvinResponse(False))
return
self.lost_node_handler.handle_lost_node_request(node_id, cb)
def lost_actor(self, lost_actor_id, lost_actor_info, required_reliability, cb):
_log.analyze(self.id, "+", "Lost actor {}".format(lost_actor_id))
self.am.delete_actor(lost_actor_id)
replicator = Replicator(self, lost_actor_id, lost_actor_info, required_reliability)
replicator.replicate_lost_actor(cb, time.time())
def _heartbeat_timeout(self, node_id):
self._clear_heartbeat_timeouts(node_id)
self.heartbeat_actor.deregister(node_id)
self.lost_node(node_id)
def clear_outgoing_heartbeat(self, data):
if "node_id" in data:
node_id = data['node_id']
self._clear_heartbeat_timeouts(node_id)
timeout_call = async.DelayedCall(self.heartbeat_timeout, CalvinCB(self._heartbeat_timeout, node_id=node_id))
self.outgoing_heartbeats[node_id].append(timeout_call)
self.resource_manager.register_uri(data['node_id'], data['uri'])
def _clear_heartbeat_timeouts(self, node_id):
for timeout_call in self.outgoing_heartbeats[node_id]:
try:
timeout_call.cancel()
except Exception as e:
pass
#
# Event loop
#
def run(self):
"""main loop on node"""
_log.debug("Node %s is running" % self.id)
self.sched.run()
def start(self):
""" Run once when main loop is started """
if not self.storage_node:
self._start_heartbeat_system()
interfaces = _conf.get(None, 'transports')
self.network.register(interfaces, ['json'])
self.network.start_listeners(self.uri)
# Start storage after network, proto etc since storage proxy expects them
self.storage.start()
self.storage.add_node(self)
# Start control api
proxy_control_uri = _conf.get(None, 'control_proxy')
_log.debug("Start control API on %s with uri: %s and proxy: %s" % (self.id, self.control_uri, proxy_control_uri))
if proxy_control_uri is not None:
self.control.start(node=self, uri=proxy_control_uri, tunnel=True)
else:
if self.control_uri is not None:
self.control.start(node=self, uri=self.control_uri)
if not self.storage_node:
self._start_resource_reporter()
def _start_resource_reporter(self):
self.new("sys.NodeResourceReporter", {'node': self, 'delay': self.resource_reporter_delay}, callback=self._start_rr)
def _start_rr(self, status, actor_id):
if not status:
_log.error("Failed to start resource reporter")
return
_log.info("Successfully started resource reporter with delay {}".format(self.resource_reporter_delay))
actor = self.am.actors[actor_id]
if not actor.inports or not actor.outports:
_log.warning("Could not set up ResourceReporter: {}".format(actor))
return
in_port = actor.inports['in']
out_port = actor.outports['out']
self.connect(actor_id, port_name=in_port.name, port_dir='in', port_id=in_port.id,
peer_node_id=self.id, peer_actor_id=actor_id, peer_port_name=out_port.name,
peer_port_dir='out', peer_port_id=out_port.id)
def _start_heartbeat_system(self):
if self.testing:
return
port = self.heartbeat_port
addr = self.heartbeat_addr
self.new("net.Heartbeat", {'node': self, 'address': addr, 'port': port, 'delay': self.heartbeat_delay}, callback=self._start_hb)
def _start_hb(self, status, actor_id):
if not status:
_log.error("Failed to start heartbeat system: ".format(status))
return
_log.info("Successfully started heartbeat actor with timeout {} and delay {}".format(self.heartbeat_timeout, self.heartbeat_delay))
actor = self.am.actors[actor_id]
in_port = actor.inports['in']
out_port = actor.outports['out']
self.connect(actor_id, port_name=in_port.name, port_dir='in', port_id=in_port.id,
peer_node_id=self.id, peer_actor_id=actor_id, peer_port_name=out_port.name,
peer_port_dir='out', peer_port_id=out_port.id)
self.heartbeat_actor = actor
def _register_heartbeat_receiver(self, node_id):
if self.storage_node or self.is_storage_node(node_id):
return
if not self.heartbeat_actor:
self._start_heartbeat_system()
if self.testing or node_id in self.heartbeat_actor.nodes:
return
_log.info("Registering receiver: {}".format(node_id))
self.heartbeat_actor.register(node_id)
def stop(self, callback=None):
def stopped(*args):
_log.analyze(self.id, "+", {'args': args})
_log.debug(args)
self.sched.stop()
_log.analyze(self.id, "+ SCHED STOPPED", {'args': args})
self.control.stop()
_log.analyze(self.id, "+ CONTROL STOPPED", {'args': args})
def deleted_node(*args, **kwargs):
_log.analyze(self.id, "+", {'args': args, 'kwargs': kwargs})
self.storage.stop(stopped)
_log.analyze(self.id, "+", {})
self.storage.delete_node(self.id, self.attributes.get_indexed_public(), cb=deleted_node)
def __init__(self, uris, control_uri, attributes=None):
super(Node, self).__init__()
self.quitting = False
self.super_node_class = None
# Warn if its not a uri
if not isinstance(uris, list):
_log.error("Calvin uris must be a list %s" % uris)
raise TypeError("Calvin uris must be a list!")
# Uris
self.uris = uris
if attributes:
ext_uris = attributes.pop('external_uri', None)
if ext_uris is not None:
self.uris += ext_uris
# Control uri
self.control_uri = control_uri
self.external_control_uri = attributes.pop('external_control_uri', self.control_uri) \
if attributes else self.control_uri
try:
self.attributes = AttributeResolver(attributes)
except:
_log.exception("Attributes not correct, uses empty attribute!")
self.attributes = AttributeResolver(None)
self.node_name = self.attributes.get_node_name_as_str()
# Obtain node id, when using security also handle runtime certificate
try:
security_dir = _conf.get("security", "security_dir")
self.runtime_credentials = RuntimeCredentials(self.node_name, node=self, security_dir=security_dir)
self.id = self.runtime_credentials.get_node_id()
except Exception as err:
_log.debug("No runtime credentials, err={}".format(err))
self.runtime_credentials = None
self.id = calvinuuid.uuid("Node")
self.certificate_authority = certificate_authority.CertificateAuthority(self)
self.authentication = authentication.Authentication(self)
self.authorization = authorization.Authorization(self)
self.am = actormanager.ActorManager(self)
self.rm = replicationmanager.ReplicationManager(self)
self.control = calvincontrol.get_calvincontrol()
# _scheduler = scheduler.DebugScheduler if _log.getEffectiveLevel() <= logging.DEBUG else scheduler.Scheduler
# _scheduler = scheduler.NonPreemptiveScheduler
# _scheduler = scheduler.RoundRobinScheduler
_scheduler = scheduler.SimpleScheduler
# _scheduler = scheduler.BaselineScheduler
self.sched = _scheduler(self, self.am)
self.async_msg_ids = {}
calvinsys = get_calvinsys()
calvinsys.init(self)
calvinlib = get_calvinlib()
calvinlib.init()
# Default will multicast and listen on all interfaces
# TODO: be able to specify the interfaces
# @TODO: Store capabilities
self.storage = storage.Storage(self)
self.network = CalvinNetwork(self)
self.proto = CalvinProto(self, self.network)
self.pm = PortManager(self, self.proto)
self.app_manager = appmanager.AppManager(self)
self.cpu_monitor = CpuMonitor(self.id, self.storage)
self.mem_monitor = MemMonitor(self.id, self.storage)
self.proxy_handler = ProxyHandler(self)
# The initialization that requires the main loop operating is deferred to start function
async.DelayedCall(0, self.start)
class Node(object):
"""A node of calvin
the uri is a list of server connection points
the control_uri is the local console
attributes is a supplied list of external defined attributes that will be used as the key when storing index
such as name of node
"""
def __init__(self, uris, control_uri, attributes=None):
super(Node, self).__init__()
self.quitting = False
self.super_node_class = None
# Warn if its not a uri
if not isinstance(uris, list):
_log.error("Calvin uris must be a list %s" % uris)
raise TypeError("Calvin uris must be a list!")
# Uris
self.uris = uris
if attributes:
ext_uris = attributes.pop('external_uri', None)
if ext_uris is not None:
self.uris += ext_uris
# Control uri
self.control_uri = control_uri
self.external_control_uri = attributes.pop('external_control_uri', self.control_uri) \
if attributes else self.control_uri
try:
self.attributes = AttributeResolver(attributes)
except:
_log.exception("Attributes not correct, uses empty attribute!")
self.attributes = AttributeResolver(None)
self.node_name = self.attributes.get_node_name_as_str()
# Obtain node id, when using security also handle runtime certificate
try:
security_dir = _conf.get("security", "security_dir")
self.runtime_credentials = RuntimeCredentials(self.node_name, node=self, security_dir=security_dir)
self.id = self.runtime_credentials.get_node_id()
except Exception as err:
_log.debug("No runtime credentials, err={}".format(err))
self.runtime_credentials = None
self.id = calvinuuid.uuid("Node")
self.certificate_authority = certificate_authority.CertificateAuthority(self)
self.authentication = authentication.Authentication(self)
self.authorization = authorization.Authorization(self)
self.am = actormanager.ActorManager(self)
self.rm = replicationmanager.ReplicationManager(self)
self.control = calvincontrol.get_calvincontrol()
# _scheduler = scheduler.DebugScheduler if _log.getEffectiveLevel() <= logging.DEBUG else scheduler.Scheduler
# _scheduler = scheduler.NonPreemptiveScheduler
# _scheduler = scheduler.RoundRobinScheduler
_scheduler = scheduler.SimpleScheduler
# _scheduler = scheduler.BaselineScheduler
self.sched = _scheduler(self, self.am)
self.async_msg_ids = {}
calvinsys = get_calvinsys()
calvinsys.init(self)
calvinlib = get_calvinlib()
calvinlib.init()
# Default will multicast and listen on all interfaces
# TODO: be able to specify the interfaces
# @TODO: Store capabilities
self.storage = storage.Storage(self)
self.network = CalvinNetwork(self)
self.proto = CalvinProto(self, self.network)
self.pm = PortManager(self, self.proto)
self.app_manager = appmanager.AppManager(self)
self.cpu_monitor = CpuMonitor(self.id, self.storage)
self.mem_monitor = MemMonitor(self.id, self.storage)
self.proxy_handler = ProxyHandler(self)
# The initialization that requires the main loop operating is deferred to start function
async.DelayedCall(0, self.start)
def insert_local_reply(self):
msg_id = calvinuuid.uuid("LMSG")
self.async_msg_ids[msg_id] = None
return msg_id
def set_local_reply(self, msg_id, reply):
if msg_id in self.async_msg_ids:
self.async_msg_ids[msg_id] = reply
def connect(self, actor_id=None, port_name=None, port_dir=None, port_properties=None, port_id=None,
peer_node_id=None, peer_actor_id=None, peer_port_name=None,
peer_port_dir=None, peer_port_properties=None, peer_port_id=None, cb=None):
if port_properties is None and port_dir is not None:
port_properties = {'direction': port_dir}
if peer_port_properties is None and peer_port_dir is not None:
peer_port_properties = {'direction': peer_port_dir}
self.pm.connect(actor_id=actor_id,
port_name=port_name,
port_properties=port_properties,
port_id=port_id,
peer_node_id=peer_node_id,
peer_actor_id=peer_actor_id,
peer_port_name=peer_port_name,
peer_port_properties=peer_port_properties,
peer_port_id=peer_port_id,
callback=CalvinCB(self.logging_callback, preamble="connect cb") if cb is None else cb)
def peersetup(self, peers, cb=None):
""" Sets up a RT to RT communication channel, only needed if the peer can't be found in storage.
peers: a list of peer uris, e.g. ["calvinip://127.0.0.1:5001"]
"""
_log.debug("peersetup(%s)" % (peers))
peers_copy = peers[:]
peer_node_ids = {}
if not cb:
callback = CalvinCB(self.logging_callback, preamble="peersetup cb")
else:
callback = CalvinCB(self.peersetup_collect_cb, peers=peers_copy, peer_node_ids=peer_node_ids, org_cb=cb)
self.network.join(peers, callback=callback)
def peersetup_collect_cb(self, status, uri, peer_node_id, peer_node_ids, peers, org_cb):
if uri in peers:
peers.remove(uri)
peer_node_ids[uri] = (peer_node_id, status)
if not peers:
# Get highest status, i.e. any error
comb_status = max([s for _, s in peer_node_ids.values()])
org_cb(peer_node_ids=peer_node_ids, status=comb_status)
def logging_callback(self, preamble=None, *args, **kwargs):
_log.debug("\n%s# NODE: %s \n# %s %s %s \n%s" %
('#' * 40, self.id, preamble if preamble else "*", args, kwargs, '#' * 40))
def new(self, actor_type, args, deploy_args=None, state=None, prev_connections=None, connection_list=None, security=None, access_decision=None):
# TODO requirements should be input to am.new
# TODO: make it possible to use security/credentials here.
actor_def, signer = self.am.lookup_and_verify(actor_type)
actor_id = self.am.new(actor_type, args, state, prev_connections, connection_list,
signature=deploy_args['signature'] if deploy_args and 'signature' in deploy_args else None,
actor_def=actor_def,
security=security,
access_decision=access_decision)
if deploy_args:
app_id = deploy_args['app_id']
if 'app_name' not in deploy_args:
app_name = app_id
else:
app_name = deploy_args['app_name']
self.app_manager.add(app_id, actor_id,
deploy_info = deploy_args['deploy_info'] if 'deploy_info' in deploy_args else None)
return actor_id
#
# Event loop
#
def run(self):
"""main loop on node"""
_log.debug("Node %s is running" % self.id)
self.sched.run()
def start(self):
""" Run once when main loop is started """
interfaces = _conf.get(None, 'transports')
self.network.register(interfaces, ['json'])
self.network.start_listeners(self.uris)
# Start storage after network, proto etc since storage proxy expects them
self.storage.start(cb=CalvinCB(self._storage_started_cb))
self.storage.add_node(self)
# Start control API
proxy_control_uri = _conf.get(None, 'control_proxy')
_log.debug("Start control API on %s with uri: %s and proxy: %s" % (self.id, self.control_uri, proxy_control_uri))
if proxy_control_uri is not None:
self.control.start(node=self, uri=proxy_control_uri, tunnel=True)
else:
if self.control_uri is not None:
self.control.start(node=self, uri=self.control_uri, external_uri=self.external_control_uri)
def stop(self, callback=None):
# TODO: Handle blocking in poorly implemented calvinsys/runtime south.
self.quitting = True
def stopped(*args):
_log.analyze(self.id, "+", {'args': args})
_log.debug(args)
self.sched.stop()
_log.analyze(self.id, "+ SCHED STOPPED", {'args': args})
self.control.stop()
_log.analyze(self.id, "+ CONTROL STOPPED", {'args': args})
def deleted_node(*args, **kwargs):
_log.analyze(self.id, "+", {'args': args, 'kwargs': kwargs})
self.storage.stop(stopped)
_log.analyze(self.id, "+", {})
self.storage.delete_node(self, cb=deleted_node)
self.cpu_monitor.stop()
self.mem_monitor.stop()
for link in self.network.list_direct_links():
self.network.link_get(link).close()
def stop_with_cleanup(self):
# Set timeout in case some actor is refusing to stop (or leave if already migrating)
timeout = async.DelayedCall(50, self.stop)
self.quitting = True
# get all actors
if not self.am.actors:
# No actors, we're basically done
return self.stop()
actors = []
for actor in self.am.actors.values():
# Do not delete migrating actors (for now)
if actor._migrating_to is None:
actors.append(actor)
# delete all actors
for actor in actors:
self.am.destroy(actor.id)
# and die - hopefully, things should clean up nicely within reasonable time
def poll_deleted(retry):
if self.am.actors:
_log.info("{} actors remaining, rechecking in {} secs".format(len(self.am.actors)))
async.DelayedCall(1*retry, poll_deleted)
else :
_log.info("All done, exiting")
timeout.cancel()
self.stop()
async.DelayedCall(0.5, poll_deleted, retry=1)
def stop_with_migration(self, callback=None):
# Set timeout if we are still failing after 50 seconds
timeout_stop = async.DelayedCall(50, self.stop)
self.quitting = True
actors = []
already_migrating = []
if not self.am.actors:
return self.stop(callback)
for actor in self.am.actors.values():
if actor._migrating_to is None:
actors.append(actor)
else:
already_migrating.append(actor.id)
def poll_migrated():
# When already migrating, we can only poll, since we don't get the callback
if self.am.actors:
# Check again in a sec
async.DelayedCall(1, poll_migrated)
return
timeout_stop.cancel()
self.stop(callback)
def migrated(actor_id, **kwargs):
actor = self.am.actors.get(actor_id, None)
status = kwargs['status']
if actor is not None:
# Failed to migrate according to requirements, try the current known peers
peer_ids = self.network.list_direct_links()
if peer_ids:
# This will remove the actor from the list of actors
self.am.robust_migrate(actor_id, peer_ids, callback=CalvinCB(migrated, actor_id=actor_id))
return
else:
# Ok, we have failed migrate actor according to requirements and to any known peer
# FIXME find unknown peers and try migrate to them, now just destroy actor, so storage is cleaned
_log.error("Failed to evict actor %s before quitting" % actor_id)
self.am.destroy(actor_id)
if self.am.actors:
return
timeout_stop.cancel()
self.stop(callback)
if already_migrating:
async.DelayedCall(1, poll_migrated)
if not actors:
return
elif not actors:
# No actors
return self.stop(callback)
# Migrate the actors according to their requirements
# (even actors without explicit requirements will migrate based on e.g. requires and port property needs)
for actor in actors:
if actor._replication_id.terminate_with_node(actor.id):
_log.info("TERMINATE REPLICA")
self.rm.terminate(actor.id, callback=CalvinCB(migrated, actor_id=actor.id))
else:
_log.info("TERMINATE MIGRATE ACTOR")
self.am.update_requirements(actor.id, [], extend=True, move=True,
authorization_check=False, callback=CalvinCB(migrated, actor_id=actor.id))
def _storage_started_cb(self, *args, **kwargs):
self.authentication.find_authentication_server()
self.authorization.register_node()
class Node(object):
"""A node of calvin
the uri is a list of server connection points
the control_uri is the local console
attributes is a supplied list of external defined attributes that will be used as the key when storing index
such as name of node
"""
def __init__(self, uri, control_uri, attributes=None):
super(Node, self).__init__()
self.uri = uri
self.control_uri = control_uri
self.external_uri = attributes.pop('external_uri', self.uri) \
if attributes else self.uri
self.external_control_uri = attributes.pop('external_control_uri', self.control_uri) \
if attributes else self.control_uri
try:
self.attributes = AttributeResolver(attributes)
except:
_log.exception("Attributes not correct, uses empty attribute!")
self.attributes = AttributeResolver(None)
self.node_name = self.attributes.get_node_name_as_str()
# Obtain node id, when using security also handle runtime certificate
self.id = certificate.obtain_cert_node_info(self.node_name)['id']
self.authentication = authentication.Authentication(self)
self.authorization = authorization.Authorization(self)
try:
self.domain = _conf.get("security", "security_domain_name")
# cert_name is the node's certificate filename (without file extension)
self.cert_name = certificate.get_own_cert_name(self.node_name)
except:
self.domain = None
self.cert_name = None
self.metering = metering.set_metering(metering.Metering(self))
self.monitor = Event_Monitor()
self.am = actormanager.ActorManager(self)
self.control = calvincontrol.get_calvincontrol()
_scheduler = scheduler.DebugScheduler if _log.getEffectiveLevel() <= logging.DEBUG else scheduler.Scheduler
self.sched = _scheduler(self, self.am, self.monitor)
self.async_msg_ids = {}
self._calvinsys = CalvinSys(self)
# Default will multicast and listen on all interfaces
# TODO: be able to specify the interfaces
# @TODO: Store capabilities
self.storage = storage.Storage(self)
self.network = CalvinNetwork(self)
self.proto = CalvinProto(self, self.network)
self.pm = PortManager(self, self.proto)
self.app_manager = appmanager.AppManager(self)
# The initialization that requires the main loop operating is deferred to start function
async.DelayedCall(0, self.start)
def insert_local_reply(self):
msg_id = calvinuuid.uuid("LMSG")
self.async_msg_ids[msg_id] = None
return msg_id
def set_local_reply(self, msg_id, reply):
if msg_id in self.async_msg_ids:
self.async_msg_ids[msg_id] = reply
def connect(self, actor_id=None, port_name=None, port_dir=None, port_properties=None, port_id=None,
peer_node_id=None, peer_actor_id=None, peer_port_name=None,
peer_port_dir=None, peer_port_properties=None, peer_port_id=None, cb=None):
if port_properties is None and port_dir is not None:
port_properties = {'direction': port_dir}
if peer_port_properties is None and peer_port_dir is not None:
peer_port_properties = {'direction': peer_port_dir}
self.pm.connect(actor_id=actor_id,
port_name=port_name,
port_properties=port_properties,
port_id=port_id,
peer_node_id=peer_node_id,
peer_actor_id=peer_actor_id,
peer_port_name=peer_port_name,
peer_port_properties=peer_port_properties,
peer_port_id=peer_port_id,
callback=CalvinCB(self.logging_callback, preamble="connect cb") if cb is None else cb)
def disconnect(self, actor_id=None, port_name=None, port_dir=None, port_id=None, cb=None):
_log.debug("disconnect(actor_id=%s, port_name=%s, port_dir=%s, port_id=%s)" %
(actor_id if actor_id else "", port_name if port_name else "",
port_dir if port_dir else "", port_id if port_id else ""))
self.pm.disconnect(actor_id=actor_id, port_name=port_name,
port_dir=port_dir, port_id=port_id,
callback=CalvinCB(self.logging_callback, preamble="disconnect cb") if cb is None else cb)
def peersetup(self, peers, cb=None):
""" Sets up a RT to RT communication channel, only needed if the peer can't be found in storage.
peers: a list of peer uris, e.g. ["calvinip://127.0.0.1:5001"]
"""
_log.debug("peersetup(%s)" % (peers))
peers_copy = peers[:]
peer_node_ids = {}
if not cb:
callback = CalvinCB(self.logging_callback, preamble="peersetup cb")
else:
callback = CalvinCB(self.peersetup_collect_cb, peers=peers_copy, peer_node_ids=peer_node_ids, org_cb=cb)
self.network.join(peers, callback=callback)
def peersetup_collect_cb(self, status, uri, peer_node_id, peer_node_ids, peers, org_cb):
if uri in peers:
peers.remove(uri)
peer_node_ids[uri] = (peer_node_id, status)
if not peers:
# Get highest status, i.e. any error
comb_status = max([s for _, s in peer_node_ids.values()])
org_cb(peer_node_ids=peer_node_ids, status=comb_status)
def logging_callback(self, preamble=None, *args, **kwargs):
_log.debug("\n%s# NODE: %s \n# %s %s %s \n%s" %
('#' * 40, self.id, preamble if preamble else "*", args, kwargs, '#' * 40))
def new(self, actor_type, args, deploy_args=None, state=None, prev_connections=None, connection_list=None):
# TODO requirements should be input to am.new
# TODO: make it possible to use security/credentials here.
actor_def, signer = self.am.lookup_and_verify(actor_type)
actor_id = self.am.new(actor_type, args, state, prev_connections, connection_list,
signature=deploy_args['signature'] if deploy_args and 'signature' in deploy_args else None,
actor_def=actor_def)
if deploy_args:
app_id = deploy_args['app_id']
if 'app_name' not in deploy_args:
app_name = app_id
else:
app_name = deploy_args['app_name']
self.app_manager.add(app_id, actor_id,
deploy_info = deploy_args['deploy_info'] if 'deploy_info' in deploy_args else None)
return actor_id
def calvinsys(self):
"""Return a CalvinSys instance"""
# FIXME: We still need to sort out actor requirements vs. node capabilities and user permissions.
# @TODO: Write node capabilities to storage
return self._calvinsys
#
# Event loop
#
def run(self):
"""main loop on node"""
_log.debug("Node %s is running" % self.id)
self.sched.run()
def start(self):
""" Run once when main loop is started """
interfaces = _conf.get(None, 'transports')
self.network.register(interfaces, ['json'])
self.network.start_listeners(self.uri)
# Start storage after network, proto etc since storage proxy expects them
self.storage.start(cb=CalvinCB(self._storage_started_cb))
self.storage.add_node(self)
# Start control API
proxy_control_uri = _conf.get(None, 'control_proxy')
_log.debug("Start control API on %s with uri: %s and proxy: %s" % (self.id, self.control_uri, proxy_control_uri))
if proxy_control_uri is not None:
self.control.start(node=self, uri=proxy_control_uri, tunnel=True)
else:
if self.control_uri is not None:
self.control.start(node=self, uri=self.control_uri, external_uri=self.external_control_uri)
def stop(self, callback=None):
def stopped(*args):
_log.analyze(self.id, "+", {'args': args})
_log.debug(args)
self.sched.stop()
_log.analyze(self.id, "+ SCHED STOPPED", {'args': args})
self.control.stop()
_log.analyze(self.id, "+ CONTROL STOPPED", {'args': args})
def deleted_node(*args, **kwargs):
_log.analyze(self.id, "+", {'args': args, 'kwargs': kwargs})
self.storage.stop(stopped)
_log.analyze(self.id, "+", {})
self.storage.delete_node(self, cb=deleted_node)
def _storage_started_cb(self, *args, **kwargs):
self.authorization.register_node()
class Node(object):
"""A node of calvin
the uri is used as server connection point
the control_uri is the local console
attributes is a supplied list of external defined attributes that will be used as the key when storing index
such as name of node
"""
def __init__(self, uri, control_uri, attributes=None):
super(Node, self).__init__()
self.uri = uri
self.control_uri = control_uri
try:
self.attributes = AttributeResolver(attributes)
except:
_log.exception("Attributes not correct, uses empty attribute!")
self.attributes = AttributeResolver(None)
self.id = calvinuuid.uuid("NODE")
self.monitor = Event_Monitor()
self.am = actormanager.ActorManager(self)
self.control = calvincontrol.get_calvincontrol()
_scheduler = scheduler.DebugScheduler if _log.getEffectiveLevel() <= logging.DEBUG else scheduler.Scheduler
self.sched = _scheduler(self, self.am, self.monitor)
self.control.start(node=self, uri=control_uri)
self.async_msg_ids = {}
self._calvinsys = CalvinSys(self)
# Default will multicast and listen on all interfaces
# TODO: be able to specify the interfaces
# @TODO: Store capabilities
self.storage = storage.Storage(self)
self.network = CalvinNetwork(self)
self.proto = CalvinProto(self, self.network)
self.pm = PortManager(self, self.proto)
self.app_manager = appmanager.AppManager(self)
# The initialization that requires the main loop operating is deferred to start function
async.DelayedCall(0, self.start)
def insert_local_reply(self):
msg_id = calvinuuid.uuid("LMSG")
self.async_msg_ids[msg_id] = None
return msg_id
def set_local_reply(self, msg_id, reply):
if msg_id in self.async_msg_ids:
self.async_msg_ids[msg_id] = reply
def connect(self, actor_id=None, port_name=None, port_dir=None, port_id=None,
peer_node_id=None, peer_actor_id=None, peer_port_name=None,
peer_port_dir=None, peer_port_id=None, cb=None):
self.pm.connect(actor_id=actor_id,
port_name=port_name,
port_dir=port_dir,
port_id=port_id,
peer_node_id=peer_node_id,
peer_actor_id=peer_actor_id,
peer_port_name=peer_port_name,
peer_port_dir=peer_port_dir,
peer_port_id=peer_port_id,
callback=CalvinCB(self.logging_callback, preamble="connect cb") if cb is None else cb)
def disconnect(self, actor_id=None, port_name=None, port_dir=None, port_id=None, cb=None):
_log.debug("disconnect(actor_id=%s, port_name=%s, port_dir=%s, port_id=%s)" %
(actor_id if actor_id else "", port_name if port_name else "",
port_dir if port_dir else "", port_id if port_id else ""))
self.pm.disconnect(actor_id=actor_id, port_name=port_name,
port_dir=port_dir, port_id=port_id,
callback=CalvinCB(self.logging_callback, preamble="disconnect cb") if cb is None else cb)
def peersetup(self, peers, cb=None):
""" Sets up a RT to RT communication channel, only needed if the peer can't be found in storage.
peers: a list of peer uris, e.g. ["calvinip://127.0.0.1:5001"]
"""
_log.debug("peersetup(%s)" % (peers))
peers_copy = peers[:]
peer_node_ids = {}
self.network.join(peers,
callback=CalvinCB(self.logging_callback, preamble="peersetup cb") if cb is None else
CalvinCB(self.peersetup_collect_cb, peers=peers_copy, peer_node_ids=peer_node_ids, org_cb=cb))
def peersetup_collect_cb(self, status, uri, peer_node_id, peer_node_ids, peers, org_cb):
if uri in peers:
peers.remove(uri)
peer_node_ids[uri] = (peer_node_id, status)
if not peers:
# Get highest status, i.e. any error
comb_status = max([s for _, s in peer_node_ids.values()])
org_cb(peer_node_ids=peer_node_ids, status=comb_status)
def logging_callback(self, preamble=None, *args, **kwargs):
_log.debug("\n%s# NODE: %s \n# %s %s %s \n%s" %
('#' * 40, self.id, preamble if preamble else "*", args, kwargs, '#' * 40))
def new(self, actor_type, args, deploy_args=None, state=None, prev_connections=None, connection_list=None):
actor_id = self.am.new(actor_type, args, state, prev_connections, connection_list,
signature=deploy_args['signature'] if deploy_args and 'signature' in deploy_args else None)
if deploy_args:
app_id = deploy_args['app_id']
if 'app_name' not in deploy_args:
app_name = app_id
else:
app_name = deploy_args['app_name']
self.app_manager.add(app_id, app_name, actor_id)
return actor_id
def deployment_control(self, app_id, actor_id, deploy_args):
""" Updates an actor's deployment """
self.am.deployment_control(app_id, actor_id, deploy_args)
def calvinsys(self):
"""Return a CalvinSys instance"""
# FIXME: We still need to sort out actor requirements vs. node capabilities and user permissions.
# @TODO: Write node capabilities to storage
return self._calvinsys
#
# Event loop
#
def run(self):
"""main loop on node"""
_log.debug("Node %s is running" % self.id)
self.sched.run()
def start(self):
""" Run once when main loop is started """
# FIXME hardcoded which transport and encoder plugin we use, should be based on
self.network.register(['calvinip'], ['json'])
self.network.start_listeners([self.uri])
# Start storage after network, proto etc since storage proxy expects them
self.storage.start()
self.storage.add_node(self)
def stop(self, callback=None):
def stopped(*args):
_log.analyze(self.id, "+", {'args': args})
_log.debug(args)
self.sched.stop()
_log.analyze(self.id, "+ SCHED STOPPED", {'args': args})
self.control.stop()
_log.analyze(self.id, "+ CONTROL STOPPED", {'args': args})
def deleted_node(*args, **kwargs):
_log.analyze(self.id, "+", {'args': args, 'kwargs': kwargs})
self.storage.stop(stopped)
_log.analyze(self.id, "+", {})
self.storage.delete_node(self, cb=deleted_node)