def __init__(self):
self.nodes = {}
self.orphans = {}
+ self._blacklist = set()
# Proxy the methods listed below to self.nodes.
def _proxy_method(name):
def add(self, record):
self.nodes[self.record_key(record)] = record
+ def blacklist(self, key):
+ self._blacklist.add(key)
+
def update_record(self, key, item):
setattr(self.nodes[key], self.RECORD_ATTR, item)
unseen = set(self.nodes.iterkeys())
for item in response:
key = self.item_key(item)
- if key in unseen:
+ if key in self._blacklist:
+ continue
+ elif key in unseen:
unseen.remove(key)
self.update_record(key, item)
else:
def __init__(self, server_wishlist_actor, arvados_nodes_actor,
cloud_nodes_actor, cloud_update_actor, timer_actor,
arvados_factory, cloud_factory,
- shutdown_windows, min_size, min_nodes, max_nodes,
+ shutdown_windows, server_calculator,
+ min_nodes, max_nodes,
poll_stale_after=600,
boot_fail_after=1800,
node_stale_after=7200,
node_setup_class=dispatch.ComputeNodeSetupActor,
node_shutdown_class=dispatch.ComputeNodeShutdownActor,
- node_actor_class=dispatch.ComputeNodeMonitorActor):
+ node_actor_class=dispatch.ComputeNodeMonitorActor,
+ max_total_price=0):
super(NodeManagerDaemonActor, self).__init__()
self._node_setup = node_setup_class
self._node_shutdown = node_shutdown_class
self._new_arvados = arvados_factory
self._new_cloud = cloud_factory
self._cloud_driver = self._new_cloud()
- self._logger = logging.getLogger('arvnodeman.daemon')
- self._later = self.actor_ref.proxy()
+ self._later = self.actor_ref.tell_proxy()
self.shutdown_windows = shutdown_windows
- self.min_cloud_size = min_size
+ self.server_calculator = server_calculator
+ self.min_cloud_size = self.server_calculator.cheapest_size()
self.min_nodes = min_nodes
self.max_nodes = max_nodes
+ self.max_total_price = max_total_price
self.poll_stale_after = poll_stale_after
self.boot_fail_after = boot_fail_after
self.node_stale_after = node_stale_after
self.booting = {} # Actor IDs to ComputeNodeSetupActors
self.booted = {} # Cloud node IDs to _ComputeNodeRecords
self.shutdowns = {} # Cloud node IDs to ComputeNodeShutdownActors
- self._logger.debug("Daemon initialized")
+ self.sizes_booting_shutdown = {} # Actor IDs or Cloud node IDs to node size
+
+ def on_start(self):
+ self._logger = logging.getLogger("%s.%s" % (self.__class__.__name__, self.actor_urn[33:]))
+ self._logger.debug("Daemon started")
def _update_poll_time(self, poll_key):
self.last_polls[poll_key] = time.time()
def _pair_nodes(self, node_record, arvados_node):
- self._logger.info("Cloud node %s has associated with Arvados node %s",
- node_record.cloud_node.id, arvados_node['uuid'])
+ self._logger.info("Cloud node %s is now paired with Arvados node %s",
+ node_record.cloud_node.name, arvados_node['uuid'])
self._arvados_nodes_actor.subscribe_to(
arvados_node['uuid'], node_record.actor.update_arvados_node)
node_record.arvados_node = arvados_node
timer_actor=self._timer,
arvados_node=None,
poll_stale_after=self.poll_stale_after,
- node_stale_after=self.node_stale_after).proxy()
- actor.subscribe(self._later.node_can_shutdown)
+ node_stale_after=self.node_stale_after,
+ cloud_client=self._cloud_driver,
+ boot_fail_after=self.boot_fail_after)
+ actorTell = actor.tell_proxy()
+ actorTell.subscribe(self._later.node_can_shutdown)
self._cloud_nodes_actor.subscribe_to(cloud_node.id,
- actor.update_cloud_node)
- record = _ComputeNodeRecord(actor, cloud_node)
+ actorTell.update_cloud_node)
+ record = _ComputeNodeRecord(actor.proxy(), cloud_node)
return record
def update_cloud_nodes(self, nodelist):
self._pair_nodes(record, arv_rec.arvados_node)
break
for key, record in self.cloud_nodes.orphans.iteritems():
+ if key in self.shutdowns:
+ try:
+ self.shutdowns[key].stop().get()
+ except pykka.ActorDeadError:
+ pass
+ del self.shutdowns[key]
+ del self.sizes_booting_shutdown[key]
record.actor.stop()
record.cloud_node = None
- self.shutdowns.pop(key, None)
def update_arvados_nodes(self, nodelist):
self._update_poll_time('arvados_nodes')
self._pair_nodes(cloud_rec, arv_node)
break
- def _nodes_up(self):
- return sum(len(nodelist) for nodelist in
- [self.cloud_nodes, self.booted, self.booting])
-
- def _nodes_busy(self):
- return sum(1 for idle in
- pykka.get_all(rec.actor.in_state('idle') for rec in
- self.cloud_nodes.nodes.itervalues())
- if idle is False)
+ def _nodes_booting(self, size):
+ s = sum(1
+ for c in self.booting.iterkeys()
+ if size is None or self.sizes_booting_shutdown[c].id == size.id)
+ s += sum(1
+ for c in self.booted.itervalues()
+ if size is None or c.cloud_node.size.id == size.id)
+ return s
+
+ def _nodes_unpaired(self, size):
+ return sum(1
+ for c in self.cloud_nodes.unpaired()
+ if size is None or c.cloud_node.size.id == size.id)
+
+ def _nodes_booted(self, size):
+ return sum(1
+ for c in self.cloud_nodes.nodes.itervalues()
+ if size is None or c.cloud_node.size.id == size.id)
+
+ def _nodes_down(self, size):
+ # Make sure to iterate over self.cloud_nodes because what we're
+ # counting here are compute nodes that are reported by the cloud
+ # provider but are considered "down" by Arvados.
+ return sum(1 for down in
+ pykka.get_all(rec.actor.in_state('down') for rec in
+ self.cloud_nodes.nodes.itervalues()
+ if size is None or rec.cloud_node.size.id == size.id)
+ if down)
+
+ def _nodes_up(self, size):
+ up = (self._nodes_booting(size) + self._nodes_booted(size)) - self._nodes_down(size)
+ return up
+
+ def _total_price(self):
+ cost = 0
+ cost += sum(self.server_calculator.find_size(self.sizes_booting_shutdown[c].id).price
+ for c in self.booting.iterkeys())
+ cost += sum(self.server_calculator.find_size(c.cloud_node.size.id).price
+ for i in (self.booted, self.cloud_nodes.nodes)
+ for c in i.itervalues())
+ return cost
+
+ def _nodes_busy(self, size):
+ return sum(1 for busy in
+ pykka.get_all(rec.actor.in_state('busy') for rec in
+ self.cloud_nodes.nodes.itervalues()
+ if rec.cloud_node.size.id == size.id)
+ if busy)
+
+ def _nodes_missing(self, size):
+ return sum(1 for arv_node in
+ pykka.get_all(rec.actor.arvados_node for rec in
+ self.cloud_nodes.nodes.itervalues()
+ if rec.cloud_node.size.id == size.id and rec.actor.cloud_node.get().id not in self.shutdowns)
+ if arv_node and cnode.arvados_node_missing(arv_node, self.node_stale_after))
+
+ def _size_wishlist(self, size):
+ return sum(1 for c in self.last_wishlist if c.id == size.id)
+
+ def _size_shutdowns(self, size):
+ sh = 0
+ for c in self.shutdowns.iterkeys():
+ try:
+ if self.sizes_booting_shutdown[c].id == size.id:
+ sh += 1
+ except pykka.ActorDeadError:
+ pass
+ return sh
+
+ def _nodes_wanted(self, size):
+ total_up_count = self._nodes_up(None)
+ under_min = self.min_nodes - total_up_count
+ over_max = total_up_count - self.max_nodes
+ total_price = self._total_price()
- def _nodes_wanted(self):
- up_count = self._nodes_up()
- under_min = self.min_nodes - up_count
- over_max = up_count - self.max_nodes
if over_max >= 0:
return -over_max
- elif under_min > 0:
+ elif under_min > 0 and size.id == self.min_cloud_size.id:
return under_min
+
+ booting_count = self._nodes_booting(size) + self._nodes_unpaired(size)
+ shutdown_count = self._size_shutdowns(size)
+ busy_count = self._nodes_busy(size)
+ idle_count = self._nodes_up(size) - (busy_count + self._nodes_missing(size))
+
+ self._logger.info("%s: wishlist %i, up %i (booting %i, idle %i, busy %i), shutting down %i", size.name,
+ self._size_wishlist(size),
+ idle_count + busy_count,
+ booting_count,
+ idle_count - booting_count,
+ busy_count,
+ shutdown_count)
+
+ wanted = self._size_wishlist(size) - idle_count
+ if wanted > 0 and self.max_total_price and ((total_price + (size.price*wanted)) > self.max_total_price):
+ can_boot = int((self.max_total_price - total_price) / size.price)
+ if can_boot == 0:
+ self._logger.info("Not booting %s (price %s) because with it would exceed max_total_price of %s (current total_price is %s)",
+ size.name, size.price, self.max_total_price, total_price)
+ return can_boot
else:
- up_count -= len(self.shutdowns) + self._nodes_busy()
- return len(self.last_wishlist) - up_count
-
- def _nodes_excess(self):
- up_count = self._nodes_up() - len(self.shutdowns)
- over_min = up_count - self.min_nodes
- if over_min <= 0:
- return over_min
- else:
- return up_count - self._nodes_busy() - len(self.last_wishlist)
+ return wanted
+
+ def _nodes_excess(self, size):
+ up_count = (self._nodes_booting(size) + self._nodes_booted(size)) - self._size_shutdowns(size)
+ if size.id == self.min_cloud_size.id:
+ up_count -= self.min_nodes
+ return up_count - self._nodes_busy(size) - self._size_wishlist(size)
def update_server_wishlist(self, wishlist):
self._update_poll_time('server_wishlist')
self.last_wishlist = wishlist
- nodes_wanted = self._nodes_wanted()
- if nodes_wanted > 0:
- self._later.start_node()
- elif (nodes_wanted < 0) and self.booting:
- self._later.stop_booting_node()
+ for size in reversed(self.server_calculator.cloud_sizes):
+ try:
+ nodes_wanted = self._nodes_wanted(size)
+ if nodes_wanted > 0:
+ self._later.start_node(size)
+ elif (nodes_wanted < 0) and self.booting:
+ self._later.stop_booting_node(size)
+ except Exception as e:
+ self._logger.exception("while calculating nodes wanted for size %s", size)
def _check_poll_freshness(orig_func):
"""Decorator to inhibit a method when poll information is stale.
return wrapper
@_check_poll_freshness
- def start_node(self):
- nodes_wanted = self._nodes_wanted()
+ def start_node(self, cloud_size):
+ nodes_wanted = self._nodes_wanted(cloud_size)
if nodes_wanted < 1:
return None
arvados_node = self.arvados_nodes.find_stale_node(self.node_stale_after)
- try:
- cloud_size = self.last_wishlist[self._nodes_up()]
- except IndexError:
- cloud_size = self.min_cloud_size
- self._logger.info("Want %s more nodes. Booting a %s node.",
+ self._logger.info("Want %i more %s nodes. Booting a node.",
nodes_wanted, cloud_size.name)
new_setup = self._node_setup.start(
timer_actor=self._timer,
cloud_client=self._new_cloud(),
cloud_size=cloud_size).proxy()
self.booting[new_setup.actor_ref.actor_urn] = new_setup
+ self.sizes_booting_shutdown[new_setup.actor_ref.actor_urn] = cloud_size
+
if arvados_node is not None:
self.arvados_nodes[arvados_node['uuid']].assignment_time = (
time.time())
new_setup.subscribe(self._later.node_up)
if nodes_wanted > 1:
- self._later.start_node()
+ self._later.start_node(cloud_size)
def _get_actor_attrs(self, actor, *attr_names):
return pykka.get_all([getattr(actor, name) for name in attr_names])
def node_up(self, setup_proxy):
cloud_node = setup_proxy.cloud_node.get()
del self.booting[setup_proxy.actor_ref.actor_urn]
+ del self.sizes_booting_shutdown[setup_proxy.actor_ref.actor_urn]
+
setup_proxy.stop()
- record = self.cloud_nodes.get(cloud_node.id)
- if record is None:
- record = self._new_node(cloud_node)
- self.booted[cloud_node.id] = record
- self._timer.schedule(time.time() + self.boot_fail_after,
- self._later.shutdown_unpaired_node, cloud_node.id)
+ if cloud_node is not None:
+ record = self.cloud_nodes.get(cloud_node.id)
+ if record is None:
+ record = self._new_node(cloud_node)
+ self.booted[cloud_node.id] = record
+ self._timer.schedule(time.time() + self.boot_fail_after,
+ self._later.shutdown_unpaired_node, cloud_node.id)
@_check_poll_freshness
- def stop_booting_node(self):
- nodes_excess = self._nodes_excess()
+ def stop_booting_node(self, size):
+ nodes_excess = self._nodes_excess(size)
if (nodes_excess < 1) or not self.booting:
return None
for key, node in self.booting.iteritems():
- if node.stop_if_no_cloud_node().get():
+ if node.cloud_size.get().id == size.id and node.stop_if_no_cloud_node().get():
del self.booting[key]
+ del self.sizes_booting_shutdown[key]
+
if nodes_excess > 1:
- self._later.stop_booting_node()
+ self._later.stop_booting_node(size)
break
def _begin_node_shutdown(self, node_actor, cancellable):
- cloud_node_id = node_actor.cloud_node.get().id
+ cloud_node_obj = node_actor.cloud_node.get()
+ cloud_node_id = cloud_node_obj.id
if cloud_node_id in self.shutdowns:
return None
shutdown = self._node_shutdown.start(
timer_actor=self._timer, cloud_client=self._new_cloud(),
- node_monitor=node_actor.actor_ref, cancellable=cancellable).proxy()
- self.shutdowns[cloud_node_id] = shutdown
- shutdown.subscribe(self._later.node_finished_shutdown)
+ arvados_client=self._new_arvados(),
+ node_monitor=node_actor.actor_ref, cancellable=cancellable)
+ self.shutdowns[cloud_node_id] = shutdown.proxy()
+ self.sizes_booting_shutdown[cloud_node_id] = cloud_node_obj.size
+ shutdown.tell_proxy().subscribe(self._later.node_finished_shutdown)
@_check_poll_freshness
def node_can_shutdown(self, node_actor):
- if self._nodes_excess() > 0:
+ if self._nodes_excess(node_actor.cloud_node.get().size) > 0:
self._begin_node_shutdown(node_actor, cancellable=True)
def shutdown_unpaired_node(self, cloud_node_id):
self._begin_node_shutdown(record.actor, cancellable=False)
def node_finished_shutdown(self, shutdown_actor):
- success, cloud_node = self._get_actor_attrs(shutdown_actor, 'success',
- 'cloud_node')
+ cloud_node, success, cancel_reason = self._get_actor_attrs(
+ shutdown_actor, 'cloud_node', 'success', 'cancel_reason')
shutdown_actor.stop()
cloud_node_id = cloud_node.id
if not success:
- del self.shutdowns[cloud_node_id]
+ if cancel_reason == self._node_shutdown.NODE_BROKEN:
+ self.cloud_nodes.blacklist(cloud_node_id)
elif cloud_node_id in self.booted:
self.booted.pop(cloud_node_id).actor.stop()
- del self.shutdowns[cloud_node_id]
+ del self.shutdowns[cloud_node_id]
+ del self.sizes_booting_shutdown[cloud_node_id]
def shutdown(self):
self._logger.info("Shutting down after signal.")
projects / arvados.git / blobdiff