def is_ready_to_terminate():
if not JBox.cfg['cloud_host']['scale_down']:
return False
num_containers = JBoxContainer.num_active(
) + JBoxContainer.num_stopped()
return (num_containers == 0) and CloudHost.can_terminate(
is_proposed_cluster_leader())
def publish_anticipated_load(session_name=None):
iid = Compute.get_instance_id()
if session_name is None:
nactive = BaseContainer.num_active(BaseContainer.SFX_INT)
else:
JBoxSessionProps.attach_instance(Compute.get_install_id(), session_name, iid, "Preparing")
nactive = BaseContainer.num_active(BaseContainer.SFX_INT) + 1
cont_load_pct = min(100, max(0, nactive * 100 / SessContainer.MAX_CONTAINERS))
self_load = max(Compute.get_instance_stats(iid, 'Load'), cont_load_pct)
Compute.publish_stats("Load", "Percent", self_load)
accept = Compute.should_accept_session(is_proposed_cluster_leader())
JBoxInstanceProps.set_props(Compute.get_install_id(), iid, load=self_load, accept=accept)
def publish_anticipated_load(session_name=None):
iid = Compute.get_instance_id()
if session_name is None:
nactive = BaseContainer.num_active(BaseContainer.SFX_INT)
else:
JBoxSessionProps.attach_instance(Compute.get_install_id(), session_name, iid, "Preparing")
nactive = BaseContainer.num_active(BaseContainer.SFX_INT) + 1
cont_load_pct = min(100, max(0, nactive * 100 / SessContainer.MAX_CONTAINERS))
self_load = max(Compute.get_instance_stats(iid, 'Load'), cont_load_pct)
Compute.publish_stats("Load", "Percent", self_load)
accept = Compute.should_accept_session(is_proposed_cluster_leader())
JBoxInstanceProps.set_props(Compute.get_install_id(), iid, load=self_load, accept=accept)
def get_api_status():
api_status = dict()
for c in BaseContainer.api_containers(allcontainers=True):
name = c["Names"][0] if (("Names" in c) and (c["Names"] is not None)) else c["Id"][0:12]
api_name = APIContainer.get_api_name_from_container_name(name)
if api_name is None:
continue
cnt = api_status.get(api_name, 0)
api_status[api_name] = cnt + 1
self_load = Compute.get_instance_stats(Compute.get_instance_id(), 'Load')
accept = Compute.should_accept_session(is_proposed_cluster_leader())
return {'load': self_load, 'accept': accept, 'api_status': api_status}
def publish_instance_state():
iid = Compute.get_instance_id()
api_status = dict()
for c in BaseContainer.api_containers(allcontainers=True):
name = c["Names"][0] if (("Names" in c) and (c["Names"] is not None)) else c["Id"][0:12]
api_name = APIContainer.get_api_name_from_container_name(name)
if api_name is None:
continue
cnt = api_status.get(api_name, 0)
api_status[api_name] = cnt + 1
self_load = Compute.get_instance_stats(iid, 'Load')
accept = Compute.should_accept_session(is_proposed_cluster_leader())
JBoxInstanceProps.set_props(Compute.get_install_id(), iid, load=self_load, accept=accept, api_status=api_status)
def publish_instance_state():
iid = Compute.get_instance_id()
api_status = dict()
for c in BaseContainer.api_containers(allcontainers=True):
name = c["Names"][0] if (("Names" in c) and (c["Names"] is not None)) else c["Id"][0:12]
api_name = APIContainer.get_api_name_from_container_name(name)
if api_name is None:
continue
cnt = api_status.get(api_name, 0)
api_status[api_name] = cnt + 1
self_load = Compute.get_instance_stats(iid, 'Load')
accept = Compute.should_accept_session(is_proposed_cluster_leader())
JBoxInstanceProps.set_props(Compute.get_install_id(), iid, load=self_load, accept=accept, api_status=api_status)
def is_terminating():
if not JBoxCfg.get('cloud_host.scale_down'):
return False
num_active = BaseContainer.num_active()
terminate = (num_active == 0) and Compute.can_terminate(is_proposed_cluster_leader())
if terminate:
JBoxd.log_warn("terminating to scale down")
try:
Compute.deregister_instance_dns()
except:
JBoxd.log_error("Error deregistering instance dns")
Compute.terminate_instance()
return terminate
def try_launch_container(cls, user_id):
sessname = unique_sessname(user_id)
cont = JBoxContainer.get_by_name(sessname)
cls.log_debug("have existing container for %s: %r", sessname,
None != cont)
if cont is not None:
cls.log_debug("container running: %r", cont.is_running())
is_leader = is_proposed_cluster_leader()
if ((cont is None) or (not cont.is_running())) and (
not CloudHost.should_accept_session(is_leader)):
if cont is not None:
cont.async_backup_and_cleanup()
return False
JBoxContainer.async_launch_by_name(sessname, user_id, True)
return True
def try_launch_container(cls, user_id, max_hop=False):
sessname = unique_sessname(user_id)
cont = JBoxContainer.get_by_name(sessname)
cls.log_debug("have existing container for %s: %r", sessname, None != cont)
if cont is not None:
cls.log_debug("container running: %r", cont.is_running())
if max_hop:
self_load = CloudHost.get_instance_stats(CloudHost.instance_id(), 'Load')
if self_load < 100:
JBoxContainer.async_launch_by_name(sessname, user_id, True)
return True
is_leader = is_proposed_cluster_leader()
if ((cont is None) or (not cont.is_running())) and (not CloudHost.should_accept_session(is_leader)):
if cont is not None:
cont.async_backup_and_cleanup()
return False
JBoxContainer.async_launch_by_name(sessname, user_id, True)
return True
def is_ready_to_terminate():
if not JBox.cfg['cloud_host']['scale_down']:
return False
num_containers = JBoxContainer.num_active() + JBoxContainer.num_stopped()
return (num_containers == 0) and CloudHost.can_terminate(is_proposed_cluster_leader())
