def __init__(self):
'''
data_set={host1:{},host2:{}...}
'''
self.data_set = None
self.rrd_wrapper = RrdWrapper(config.ganglia_rrd_dir , config.rrd_image_dir)
self.cluster_name = contants.get_cluster_name()
class AlarmDataManager(Manager):
def __init__(self):
self.data_set = None
self.rrd_wrapper = RrdWrapper(config.ganglia_rrd_dir, config.rrd_image_dir)
self.cluster_name = contants.get_cluster_name()
def pre_check(self):
"""
每次检查开始前获取数据
"""
begin = time.time()
if os.path.exists(config.ganglia_rrd_dir):
self.data_set = self.get_last_rrd(config.ganglia_rrd_dir)
end = time.time()
log.info("refresh data using %.3f s" % (end - begin))
def get_last_rrd(self, dir):
re = {}
for child in os.listdir(dir):
child_path = os.path.join(dir, child)
if os.path.isfile(child_path):
point_name = child[0 : len(child) - 4]
# (ts,value) = self.rrd_wrapper.get_last( child_path )
(pre, value) = self.rrd_wrapper.get_pre_last(child_path)
re[point_name] = value
re["PRE_" + point_name] = pre
elif os.path.isdir(child_path):
re[child] = self.get_last_rrd(child_path)
return re
def get_data_by_host(self, host):
"""
根据指定的host获取对应的指标数据
返回结果类似
{'load_one':0.9,'load_five':0.6}
"""
if host == "cluster":
if self.data_set.has_key(self.cluster_name):
return self.data_set[self.cluster_name]
else:
return {}
for (cluster_name, data) in self.data_set.items():
if cluster_name == "__SummaryInfo__":
continue
else:
if data.has_key(host):
return data[host].copy()
return {}
class AlarmDataManager(Manager):
def __init__(self):
'''
data_set={host1:{},host2:{}...}
'''
self.data_set = None
self.rrd_wrapper = RrdWrapper(config.ganglia_rrd_dir , config.rrd_image_dir)
self.cluster_name = contants.get_cluster_name()
def pre_check(self):
'''
每次检查开始前获取数据
'''
begin = time.time()
if os.path.exists( config.ganglia_rrd_dir ):
self.data_set = self.get_last_rrd( config.ganglia_rrd_dir )
end = time.time()
log.info("refresh data using %.3f s" % (end - begin) )
def get_last_rrd(self, dir):
'''
根据ganglia的目录获取数据
先获取cluster_name,拼出集群目录
再获取数据库中的hostname的列表
逐一获取对应目录的数据
'''
host_list = contants.get_host_list()
dict = {}
for host in host_list:
host_dir = os.path.join(dir,self.cluster_name,host)
if os.path.exists(host_dir) :
host_dict = {}
for point in os.listdir(host_dir):
point_path = os.path.join(host_dir,point)
point_name = point[0:len(point)-4]
(pre,value) = self.rrd_wrapper.get_pre_last( str(point_path) )
host_dict[point_name] = value
host_dict["PRE_"+point_name] = pre
dict[host] = host_dict
return dict
#re = {}
#for child in os.listdir(dir):
# child_path = os.path.join(dir,child)
# if os.path.isfile(child_path) :
# point_name = child[0:len(child)-4]
# #(ts,value) = self.rrd_wrapper.get_last( child_path )
# (pre,value) = self.rrd_wrapper.get_pre_last( child_path )
# re[point_name] = value
# re["PRE_"+point_name] = pre
# elif os.path.isdir(child_path) :
# re[child] = self.get_last_rrd( child_path )
#return re
def get_data_by_host(self, host):
'''
根据指定的host获取对应的指标数据
返回结果类似
{'load_one':0.9,'load_five':0.6}
'''
if host == "cluster" :
return self.data_set
if self.data_set.has_key(host) :
return self.data_set[host]
return {}
def __init__(self):
self.data_set = None
self.rrd_wrapper = RrdWrapper(config.ganglia_rrd_dir, config.rrd_image_dir)
self.cluster_name = contants.get_cluster_name()