def _getInfo(allMesosNodes, ip):
info = None
try:
info = allMesosNodes[ip]
except KeyError:
# never seen by mesos - 1 of 3 possibilities:
# 1) node is still launching mesos & will come online soon
# 2) no jobs have been assigned to this worker. This means the executor was never
# launched, so we don't even get an executorInfo back indicating 0 workers running
# 3) mesos crashed before launching, worker will never come online
# In all 3 situations it's safe to fake executor info with 0 workers, since in all
# cases there are no workers running. We also won't waste any money in cases 1/2 since
# we will still wait for the end of the node's billing cycle for the actual
# termination.
info = NodeInfo(coresTotal=1, coresUsed=0, requestedCores=0,
memoryTotal=1, memoryUsed=0, requestedMemory=0,
workers=0)
else:
# Node was tracked but we haven't seen this in the last 10 minutes
inUse = self.scaler.leader.batchSystem.nodeInUse(ip)
if not inUse:
# The node hasn't reported in the last 10 minutes & last we know
# there weren't any tasks running. We will fake executorInfo with no
# worker to reflect this, since otherwise this node will never
# be considered for termination
info.workers = 0
else:
pass
# despite the node not reporting to mesos jobs may still be running
# so we can't terminate the node
return info
def _getInfo(allMesosNodes, ip):
info = None
try:
info = allMesosNodes[ip]
except KeyError:
# never seen by mesos - 1 of 3 possibilities:
# 1) node is still launching mesos & will come online soon
# 2) no jobs have been assigned to this worker. This means the executor was never
# launched, so we don't even get an executorInfo back indicating 0 workers running
# 3) mesos crashed before launching, worker will never come online
# In all 3 situations it's safe to fake executor info with 0 workers, since in all
# cases there are no workers running.
info = NodeInfo(coresTotal=1,
coresUsed=0,
requestedCores=0,
memoryTotal=1,
memoryUsed=0,
requestedMemory=0,
workers=0)
else:
# Node was tracked but we haven't seen this in the last 10 minutes
inUse = self.scaler.leader.batchSystem.nodeInUse(ip)
if not inUse:
# The node hasn't reported in the last 10 minutes & last we know
# there weren't any tasks running. We will fake executorInfo with no
# worker to reflect this, since otherwise this node will never
# be considered for termination
info.workers = 0
else:
pass
# despite the node not reporting to mesos jobs may still be running
# so we can't terminate the node
return info
def frameworkMessage(self, driver, executorId, agentId, message):
"""
Invoked when an executor sends a message.
"""
# Take it out of base 64 encoding from Protobuf
message = decode_data(message).decode()
log.debug('Got framework message from executor %s running on agent %s: %s',
executorId.value, agentId.value, message)
message = ast.literal_eval(message)
assert isinstance(message, dict)
# Handle the mandatory fields of a message
nodeAddress = message.pop('address')
executor = self._registerNode(nodeAddress, agentId.value)
# Handle optional message fields
for k, v in message.items():
if k == 'nodeInfo':
assert isinstance(v, dict)
resources = [taskData for taskData in self.runningJobMap.values()
if taskData.executorID == executorId.value]
requestedCores = sum(taskData.cores for taskData in resources)
requestedMemory = sum(taskData.memory for taskData in resources)
executor.nodeInfo = NodeInfo(requestedCores=requestedCores, requestedMemory=requestedMemory, **v)
self.executors[nodeAddress] = executor
else:
raise RuntimeError("Unknown message field '%s'." % k)
def getNodes(self):
return {
address: NodeInfo(cores=0,
memory=0,
workers=1 if w.busyEvent.is_set() else 0)
for address, w in enumerate(self.workers)
}
def getNodes(self):
nodes = dict()
for i, worker in enumerate(self.nodesToWorker.values()):
nodes[(i, self.preemptable)] = NodeInfo(coresTotal=0, coresUsed=0, requestedCores=1,
memoryTotal=0, memoryUsed=0, requestedMemory=1,
workers=1 if worker.busyEvent.is_set() else 0)
return nodes
def getNodes(self, preemptable=False, timeout=None):
nodes = dict()
for node in self.nodesToWorker:
if node.preemptable == preemptable:
worker = self.nodesToWorker[node]
nodes[node.privateIP] = NodeInfo(coresTotal=0, coresUsed=0, requestedCores=1,
memoryTotal=0, memoryUsed=0, requestedMemory=1,
workers=1 if worker.busyEvent.is_set() else 0)
return nodes
def getNodes(self):
return {
address: NodeInfo(coresTotal=0,
coresUsed=0,
requestedCores=1,
memoryTotal=0,
memoryUsed=0,
requestedMemory=1,
workers=1 if w.busyEvent.is_set() else 0)
for address, w in enumerate(self.workers)
}
def frameworkMessage(self, driver, executorId, slaveId, message):
"""
Invoked when an executor sends a message.
"""
log.debug(
'Got framework message from executor %s running on slave %s: %s',
executorId.value, slaveId.value, message)
message = ast.literal_eval(message)
assert isinstance(message, dict)
# Handle the mandatory fields of a message
nodeAddress = message.pop('address')
executor = self._registerNode(nodeAddress, slaveId.value)
# Handle optional message fields
for k, v in message.iteritems():
if k == 'nodeInfo':
assert isinstance(v, dict)
executor.nodeInfo = NodeInfo(**v)
else:
raise RuntimeError("Unknown message field '%s'." % k)
def frameworkMessage(self, driver, executorId, slaveId, message):
"""
Invoked when an executor sends a message.
"""
message = ast.literal_eval(message)
assert isinstance(message, dict)
# Handle the mandatory fields of a message
nodeAddress = message.pop('address')
executor = self.executors.get(nodeAddress)
if executor is None or executor.slaveId != slaveId:
executor = Expando(nodeAddress=nodeAddress,
slaveId=slaveId,
nodeInfo=None)
self.executors[nodeAddress] = executor
executor.lastSeen = time.time()
# Handle optional message fields
for k, v in message.iteritems():
if k == 'nodeInfo':
assert isinstance(v, dict)
executor.nodeInfo = NodeInfo(**v)
else:
raise RuntimeError("Unknown message field '%s'." % k)
