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Commit 0dd53d40 by Gregory Nagy
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pep8 namingconvention + cpu_usage, ram_usage

parent 2b8a9a59
Showing with 197 additions and 170 deletions
circle/monitor/calvin/calvin/calvin.py
......@@ -3,174 +3,170 @@ import os
class GraphiteHandler:
def __init__(self):
if os.getenv("NODE_MONITOR_SERVER") is "":
raise RuntimeError
self.__server_name = os.getenv("NODE_MONITOR_SERVER")
if os.getenv("NODE_MONITOR_PORT") is "":
raise RuntimeError
self.__server_port = os.getenv("NODE_MONITOR_PORT")
self.__queries = []
self.__responses = []
def put(self, query):
self.__queries.append(query)
def cleanUpQueries(self):
self.__queries = []
def cleanUpResponses(self):
self.__responses = []
def isEmpty(self):
return len(self.__queries) is 0
def generateAll(self):
"""
Regenerate the queries before sending.
"""
for query in self.__queries:
query.generate()
def send(self):
"""
Generates the corrent query for the Graphite webAPI and flush all the
queries in the fifo.
Important: After sending queries to the server the fifo will lost its
content.
"""
url_base = "http://%s:%s/render?" % (self.__server_name,
self.__server_port)
for query in self.__queries:
response = requests.get(url_base + query.getGenerated())
if query.getFormat() is "json":
self.__responses.append(response.json()) # DICT
else:
self.__responses.append(response)
self.cleanUpQueries()
def pop(self):
"""
Pop the first query has got from the server.
"""
try:
return self.__responses.pop(0) # Transform to dictionary
except:
raise RuntimeError
def __init__(self):
if os.getenv("NODE_MONITOR_SERVER") is "":
raise RuntimeError
self.__server_name = os.getenv("NODE_MONITOR_SERVER")
if os.getenv("NODE_MONITOR_PORT") is "":
raise RuntimeError
self.__server_port = os.getenv("NODE_MONITOR_PORT")
self.__queries = []
self.__responses = []
def put(self, query):
self.__queries.append(query)
def cleanUpQueries(self):
self.__queries = []
def cleanUpResponses(self):
self.__responses = []
def isEmpty(self):
return len(self.__queries) is 0
def generateAll(self):
"""
Regenerate the queries before sending.
"""
for query in self.__queries:
query.generate()
def send(self):
"""
Generates the corrent query for the Graphite webAPI and flush all the
queries in the fifo.
Important: After sending queries to the server the fifo will lost its
content.
"""
url_base = "http://%s:%s/render?" % (self.__server_name,
self.__server_port)
for query in self.__queries:
response = requests.get(url_base + query.getGenerated())
if query.getFormat() is "json":
self.__responses.append(response.json()) # DICT
else:
self.__responses.append(response)
self.cleanUpQueries()
def pop(self):
"""
Pop the first query has got from the server.
"""
try:
return self.__responses.pop(0) # Transform to dictionary
except:
raise RuntimeError
class Query:
def __init__(self):
"""
Query initializaion:
default format is json dictionary
keys: ("target <string>","datapoints <list>")
"""
self.__target = ""
self.__metric = ""
self.__start = ""
self.__end = ""
self.__function = ""
self.__response_format = "json"
self.__generated = ""
def setTarget(self, target):
"""
Hostname of the target we should get the information from.
After the hostname you should use the domain the target is in.
Example: "foo.foodomain.domain.com.DOMAIN" where DOMAIN is
the root of the graphite server.
"""
self.__target = '.'.join(target.split('.')[::-1])
def getTarget(self):
return self.__target
def setMetric(self, metric):
self.__metric = metric
def getMetric(self):
return self.__metric
def setAbsoluteStart(self, year, month, day, hour, minute):
"""
Function for setting the time you want to get the reports from.
"""
if (len(year) > 4 or len(year) < 2):
raise
self.__start = hour + ":" + minute + "_" + year + month + day
def setRelativeStart(self, value, scale):
"""
Function for setting the time you want to get the reports from.
"""
if (scale not in ["years",
"months", "days", "hours", "minutes", "seconds"]):
raise
self.__start = "-" + str(value) + scale
def getStart(self):
return self.__start
def setAbsoluteEnd(self, year, month, day, hour, minute):
"""
Function for setting the time until you want to get the reports from.
"""
if (len(year) > 4 or len(year) < 2):
raise
self.__end = hour + ":" + minute + "_" + year + month + day
def setRelativeEnd(self, value, scale):
"""
Function for setting the time until you want to get the reports from.
"""
if (scale not in ["years",
"months", "days", "hours", "minutes", "seconds"]):
raise
self.__end = "-" + str(value) + scale
def getEnd(self):
return self.__end
def setFormat(self, fmat):
"""
Function for setting the format of the response from the server.
Valid values: ["csv", "raw", "json"]
"""
valid_formats = ["csv", "raw", "json"]
if fmat not in valid_formats:
raise
self.__response_format = fmat
def getFormat(self):
return self.__response_format
def generate(self):
"""
You must always call this function before sending the metric to the
server for it generates the valid format that the graphite API can
parse.
"""
tmp = "target=" + self.__target + "." + self.__metric
if len(self.__start) is not 0:
tmp = tmp + "&from=" + self.__start
if len(self.__end) is not 0:
tmp = tmp + "&until=" + self.__end
tmp = tmp + "&format=" + self.__response_format
self.__generated = tmp
return self.__generated
def getGenerated(self):
"""
Returns the generated query string.
Throws exception if it haven't been done yet.
"""
if len(self.__generated) is 0:
raise
return self.__generated
def __init__(self):
"""
Query initializaion:
default format is json dictionary
keys: ("target <string>","datapoints <list>")
"""
self.__target = ""
self.__metric = ""
self.__start = ""
self.__end = ""
self.__function = ""
self.__response_format = "json"
self.__generated = ""
def setTarget(self, target):
"""
Hostname of the target we should get the information from.
After the hostname you should use the domain the target is in.
Example: "foo.foodomain.domain.com.DOMAIN" where DOMAIN is
the root of the graphite server.
"""
self.__target = '.'.join(target.split('.')[::-1])
def getTarget(self):
return self.__target
def setMetric(self, metric):
self.__metric = metric
def getMetric(self):
return self.__metric
def setAbsoluteStart(self, year, month, day, hour, minute):
"""
Function for setting the time you want to get the reports from.
"""
if (len(year) > 4 or len(year) < 2):
raise
self.__start = hour + ":" + minute + "_" + year + month + day
def setRelativeStart(self, value, scale):
"""
Function for setting the time you want to get the reports from.
"""
if (scale not in ["years",
"months", "days", "hours", "minutes", "seconds"]):
raise
self.__start = "-" + str(value) + scale
def getStart(self):
return self.__start
def setAbsoluteEnd(self, year, month, day, hour, minute):
"""
Function for setting the time until you want to get the reports from.
"""
if (len(year) > 4 or len(year) < 2):
raise
self.__end = hour + ":" + minute + "_" + year + month + day
def setRelativeEnd(self, value, scale):
"""
Function for setting the time until you want to get the reports from.
"""
if (scale not in ["years",
"months", "days", "hours", "minutes", "seconds"]):
raise
self.__end = "-" + str(value) + scale
def getEnd(self):
return self.__end
def setFormat(self, fmat):
"""
Function for setting the format of the response from the server.
Valid values: ["csv", "raw", "json"]
"""
valid_formats = ["csv", "raw", "json"]
if fmat not in valid_formats:
raise
self.__response_format = fmat
def getFormat(self):
return self.__response_format
def generate(self):
"""
You must always call this function before sending the metric to the
server for it generates the valid format that the graphite API can
parse.
"""
tmp = "target=" + self.__target + "." + self.__metric
if len(self.__start) is not 0:
tmp = tmp + "&from=" + self.__start
if len(self.__end) is not 0:
tmp = tmp + "&until=" + self.__end
tmp = tmp + "&format=" + self.__response_format
self.__generated = tmp
return self.__generated
def getGenerated(self):
"""
Returns the generated query string.
Throws exception if it haven't been done yet.
"""
if len(self.__generated) is 0:
raise
return self.__generated
circle/vm/models/node.py
......@@ -16,6 +16,9 @@ from firewall.models import Host
from ..tasks import vm_tasks
from .common import Trait
from monitor.calvin import Query
from monitor.calvin import GraphiteHandler
logger = getLogger(__name__)
......@@ -60,6 +63,7 @@ class Node(TimeStampedModel):
def num_cores(self):
"""Number of CPU threads available to the virtual machines.
"""
return self.remote_query(vm_tasks.get_core_num)
@property
......@@ -93,13 +97,11 @@ class Node(TimeStampedModel):
def get_remote_queue_name(self, queue_id):
return self.host.hostname + "." + queue_id
def remote_query(self, task, timeout=1, raise_=False, default=None):
def remote_query(self, task, timeout=30, raise_=False, default=None):
"""Query the given task, and get the result.
If the result is not ready in timeout secs, return default value or
raise a TimeoutError."""
if task != vm_tasks.ping and not self.online:
return default
r = task.apply_async(
queue=self.get_remote_queue_name('vm'), expires=timeout + 60)
try:
......@@ -110,6 +112,35 @@ class Node(TimeStampedModel):
else:
return default
def get_monitor_info(self):
query = Query()
handler = GraphiteHandler()
query.setTarget(self.host.hostname + ".circle")
query.setFormat("json")
query.setRelativeStart(5, "minutes")
metrics = ["cpu.usage", "memory.usage", "network.bytes_sent",
"network.bytes_received"]
collected = {}
for metric in metrics:
query.setMetric(metric)
query.generate()
handler.put(query)
handler.send()
for metric in metrics:
response = query.pop()
length = len(response[0]["datapoints"])
cache = response[0]["datapoints"][length - 1][0]
if cache is None:
cache = 0
collected[metric] = cache
return collected
def cpu_usage(self):
return self.get_monitor_info()["cpu.usage"]
def ram_usage(self):
return self.get_monitor_info()["memory.usage"]
def update_vm_states(self):
domains = {}
for i in self.remote_query(vm_tasks.list_domains_info, timeout=5):
......
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