def get_system_stats():
systemStats = {
'machine': platform.machine(),
'platform': sys.platform,
'processor': platform.processor(),
'pythonV': platform.python_version(),
}
platf = sys.platform
if Platform.is_linux(platf):
grep = subprocess.Popen(['grep', 'model name', '/proc/cpuinfo'], stdout=subprocess.PIPE, close_fds=True)
wc = subprocess.Popen(['wc', '-l'], stdin=grep.stdout, stdout=subprocess.PIPE, close_fds=True)
systemStats['cpuCores'] = int(wc.communicate()[0])
if Platform.is_darwin(platf):
systemStats['cpuCores'] = int(subprocess.Popen(['sysctl', 'hw.ncpu'], stdout=subprocess.PIPE, close_fds=True).communicate()[0].split(': ')[1])
if Platform.is_freebsd(platf):
systemStats['cpuCores'] = int(subprocess.Popen(['sysctl', 'hw.ncpu'], stdout=subprocess.PIPE, close_fds=True).communicate()[0].split(': ')[1])
if Platform.is_linux(platf):
systemStats['nixV'] = platform.dist()
elif Platform.is_darwin(platf):
systemStats['macV'] = platform.mac_ver()
elif Platform.is_freebsd(platf):
version = platform.uname()[2]
systemStats['fbsdV'] = ('freebsd', version, '') # no codename for FreeBSD
elif Platform.is_win32(platf):
systemStats['winV'] = platform.win32_ver()
return systemStats
def get_system_stats():
systemStats = {
'machine': platform.machine(),
'platform': sys.platform,
'processor': platform.processor(),
'pythonV': platform.python_version(),
}
platf = sys.platform
if Platform.is_linux(platf):
grep = subprocess.Popen(['grep', 'model name', '/proc/cpuinfo'], stdout=subprocess.PIPE, close_fds=True)
wc = subprocess.Popen(['wc', '-l'], stdin=grep.stdout, stdout=subprocess.PIPE, close_fds=True)
systemStats['cpuCores'] = int(wc.communicate()[0])
if Platform.is_darwin(platf):
systemStats['cpuCores'] = int(subprocess.Popen(['sysctl', 'hw.ncpu'], stdout=subprocess.PIPE, close_fds=True).communicate()[0].split(': ')[1])
if Platform.is_freebsd(platf):
systemStats['cpuCores'] = int(subprocess.Popen(['sysctl', 'hw.ncpu'], stdout=subprocess.PIPE, close_fds=True).communicate()[0].split(': ')[1])
if Platform.is_linux(platf):
systemStats['nixV'] = platform.dist()
elif Platform.is_darwin(platf):
systemStats['macV'] = platform.mac_ver()
elif Platform.is_freebsd(platf):
version = platform.uname()[2]
systemStats['fbsdV'] = ('freebsd', version, '') # no codename for FreeBSD
elif Platform.is_win32(platf):
systemStats['winV'] = platform.win32_ver()
return systemStats
def check(self, instance):
""" Collect metrics for the given gunicorn instance. """
self.log.debug("Running instance: %s", instance)
if Platform.is_linux():
procfs_path = self.agentConfig.get('procfs_path', '/proc').rstrip('/')
psutil.PROCFS_PATH = procfs_path
# Validate the config.
if not instance or self.PROC_NAME not in instance:
raise GUnicornCheckError("instance must specify: %s" % self.PROC_NAME)
# Load the gunicorn master procedure.
proc_name = instance.get(self.PROC_NAME)
master_proc = self._get_master_proc_by_name(proc_name)
# Fetch the worker procs and count their states.
worker_procs = master_proc.children()
working, idle = self._count_workers(worker_procs)
# if no workers are running, alert CRITICAL, otherwise OK
msg = "%s working and %s idle workers for %s" % (working, idle, proc_name)
status = AgentCheck.CRITICAL if working == 0 and idle == 0 else AgentCheck.OK
self.service_check(self.SVC_NAME, status, tags=['app:' + proc_name], message=msg)
# Submit the data.
self.log.debug("instance %s procs - working:%s idle:%s" % (proc_name, working, idle))
self.gauge("gunicorn.workers", working, self.WORKING_TAGS)
self.gauge("gunicorn.workers", idle, self.IDLE_TAGS)
def check(self, instance):
""" Collect metrics for the given gunicorn instance. """
self.log.debug("Running instance: %s", instance)
if Platform.is_linux():
procfs_path = self.agentConfig.get('procfs_path', '/proc').rstrip('/')
psutil.PROCFS_PATH = procfs_path
# Validate the config.
if not instance or self.PROC_NAME not in instance:
raise GUnicornCheckError("instance must specify: %s" % self.PROC_NAME)
# Load the gunicorn master procedure.
proc_name = instance.get(self.PROC_NAME)
master_proc = self._get_master_proc_by_name(proc_name)
# Fetch the worker procs and count their states.
worker_procs = master_proc.children()
working, idle = self._count_workers(worker_procs)
# if no workers are running, alert CRITICAL, otherwise OK
msg = "%s working and %s idle workers for %s" % (working, idle, proc_name)
status = AgentCheck.CRITICAL if working == 0 and idle == 0 else AgentCheck.OK
self.service_check(self.SVC_NAME, status, tags=['app:' + proc_name], message=msg)
# Submit the data.
self.log.debug("instance %s procs - working:%s idle:%s" % (proc_name, working, idle))
self.gauge("gunicorn.workers", working, self.WORKING_TAGS)
self.gauge("gunicorn.workers", idle, self.IDLE_TAGS)
def testMemory(self):
global logger
res = Memory(logger).check({})
if Platform.is_linux():
MEM_METRICS = [
"swapTotal",
"swapFree",
"swapPctFree",
"swapUsed",
"physTotal",
"physFree",
"physUsed",
"physBuffers",
"physCached",
"physUsable",
"physPctUsable",
"physShared",
]
for k in MEM_METRICS:
# % metric is only here if total > 0
if k == "swapPctFree" and res["swapTotal"] == 0:
continue
assert k in res, res
assert res["swapTotal"] == res["swapFree"] + res["swapUsed"]
assert res["physTotal"] == res["physFree"] + res["physUsed"]
elif sys.platform == "darwin":
for k in ("swapFree", "swapUsed", "physFree", "physUsed"):
assert k in res, res
def testNetwork(self):
# FIXME: cx_state to true, but needs sysstat installed
config = """
init_config:
instances:
- collect_connection_state: false
excluded_interfaces:
- lo
- lo0
"""
check, instances = get_check("network", config)
check.check(instances[0])
check.get_metrics()
metric_names = [m[0] for m in check.aggregator.metrics]
assert "system.net.bytes_rcvd" in metric_names
assert "system.net.bytes_sent" in metric_names
if Platform.is_linux():
assert "system.net.tcp.retrans_segs" in metric_names
assert "system.net.tcp.in_segs" in metric_names
assert "system.net.tcp.out_segs" in metric_names
elif Platform.is_bsd():
assert "system.net.tcp.retrans_packs" in metric_names
assert "system.net.tcp.sent_packs" in metric_names
assert "system.net.tcp.rcv_packs" in metric_names
def testNetwork(self):
# FIXME: cx_state to true, but needs sysstat installed
config = """
init_config:
instances:
- collect_connection_state: false
excluded_interfaces:
- lo
- lo0
"""
check, instances = get_check('network', config)
check.check(instances[0])
check.get_metrics()
metric_names = [m[0] for m in check.aggregator.metrics]
assert 'system.net.bytes_rcvd' in metric_names
assert 'system.net.bytes_sent' in metric_names
if Platform.is_linux():
assert 'system.net.tcp.retrans_segs' in metric_names
assert 'system.net.tcp.in_segs' in metric_names
assert 'system.net.tcp.out_segs' in metric_names
elif Platform.is_bsd():
assert 'system.net.tcp.retrans_packs' in metric_names
assert 'system.net.tcp.sent_packs' in metric_names
assert 'system.net.tcp.rcv_packs' in metric_names
def get_system_stats():
systemStats = {
"machine": platform.machine(),
"platform": sys.platform,
"processor": platform.processor(),
"pythonV": platform.python_version(),
}
platf = sys.platform
if Platform.is_linux(platf):
grep = subprocess.Popen(["grep", "model name", "/proc/cpuinfo"], stdout=subprocess.PIPE, close_fds=True)
wc = subprocess.Popen(["wc", "-l"], stdin=grep.stdout, stdout=subprocess.PIPE, close_fds=True)
systemStats["cpuCores"] = int(wc.communicate()[0])
if Platform.is_darwin(platf):
systemStats["cpuCores"] = int(
subprocess.Popen(["sysctl", "hw.ncpu"], stdout=subprocess.PIPE, close_fds=True)
.communicate()[0]
.split(": ")[1]
)
if Platform.is_freebsd(platf):
systemStats["cpuCores"] = int(
subprocess.Popen(["sysctl", "hw.ncpu"], stdout=subprocess.PIPE, close_fds=True)
.communicate()[0]
.split(": ")[1]
)
if Platform.is_linux(platf):
systemStats["nixV"] = platform.dist()
elif Platform.is_darwin(platf):
systemStats["macV"] = platform.mac_ver()
elif Platform.is_freebsd(platf):
version = platform.uname()[2]
systemStats["fbsdV"] = ("freebsd", version, "") # no codename for FreeBSD
elif Platform.is_win32(platf):
systemStats["winV"] = platform.win32_ver()
return systemStats
def testMemory(self):
global logger
res = Memory(logger).check({})
if Platform.is_linux():
for k in ("swapTotal", "swapFree", "swapPctFree", "swapUsed", "physTotal", "physFree", "physUsed", "physBuffers", "physCached", "physUsable", "physPctUsable", "physShared"):
assert k in res, res
assert res["swapTotal"] == res["swapFree"] + res["swapUsed"]
assert res["physTotal"] == res["physFree"] + res["physUsed"]
elif sys.platform == 'darwin':
for k in ("swapFree", "swapUsed", "physFree", "physUsed"):
assert k in res, res
def check(self, instance):
host, port, user, password, mysql_sock, defaults_file, tags, options = self._get_config(instance)
if (not host or not user) and not defaults_file:
raise Exception("Mysql host and user are needed.")
db = self._connect(host, port, mysql_sock, user, password, defaults_file)
# Metric collection
self._collect_metrics(host, db, tags, options)
if Platform.is_linux():
self._collect_system_metrics(host, db, tags)
def check(self, instance):
"""Get disk space/inode stats"""
# Windows and Mac will always have psutil
# (we have packaged for both of them)
if self._psutil():
if Platform.is_linux():
procfs_path = self.agentConfig.get('procfs_path', '/proc').rstrip('/')
psutil.PROCFS_PATH = procfs_path
self.collect_metrics_psutil()
else:
# FIXME: implement all_partitions (df -a)
self.collect_metrics_manually()
def check(self, instance):
host, port, user, password, mysql_sock, defaults_file, tags, options = \
self._get_config(instance)
if (not host or not user) and not defaults_file:
raise Exception("Mysql host and user are needed.")
db = self._connect(host, port, mysql_sock, user, password, defaults_file)
# Metric collection
self._collect_metrics(host, db, tags, options)
if Platform.is_linux():
self._collect_system_metrics(host, db, tags)
def testLoad(self):
global logger
load = Load(logger)
res = load.check({'system_stats': get_system_stats()})
assert 'system.load.1' in res
if Platform.is_linux():
cores = int(get_system_stats().get('cpuCores'))
assert 'system.load.norm.1' in res
assert abs(res['system.load.1'] - cores * res['system.load.norm.1']) <= 0.1, (res['system.load.1'], cores * res['system.load.norm.1'])
# same test but without cpu count, no normalized load sent.
res = load.check({})
assert 'system.load.1' in res
assert 'system.load.norm.1' not in res
def testMemory(self):
global logger
res = Memory(logger).check({})
if Platform.is_linux():
MEM_METRICS = ["swapTotal", "swapFree", "swapPctFree", "swapUsed", "physTotal", "physFree", "physUsed", "physBuffers", "physCached", "physUsable", "physPctUsable", "physShared"]
for k in MEM_METRICS:
# % metric is only here if total > 0
if k == 'swapPctFree' and res['swapTotal'] == 0:
continue
assert k in res, res
assert res["swapTotal"] == res["swapFree"] + res["swapUsed"]
assert res["physTotal"] == res["physFree"] + res["physUsed"]
elif sys.platform == 'darwin':
for k in ("swapFree", "swapUsed", "physFree", "physUsed"):
assert k in res, res
def check(self, agentConfig):
if Platform.is_linux():
try:
loadAvrgProc = open('/proc/loadavg', 'r')
uptime = loadAvrgProc.readlines()
loadAvrgProc.close()
except Exception:
self.logger.exception('Cannot extract load')
return False
uptime = uptime[
0] # readlines() provides a list but we want a string
elif sys.platform in ('darwin',
'sunos5') or sys.platform.startswith("freebsd"):
# Get output from uptime
try:
uptime = sp.Popen(['uptime'], stdout=sp.PIPE,
close_fds=True).communicate()[0]
except Exception:
self.logger.exception('Cannot extract load')
return False
# Split out the 3 load average values
load = [
res.replace(',', '.')
for res in re.findall(r'([0-9]+[\.,]\d+)', uptime)
]
# Normalize load by number of cores
try:
cores = int(agentConfig.get('system_stats').get('cpuCores'))
assert cores >= 1, "Cannot determine number of cores"
# Compute a normalized load, named .load.norm to make it easy to find next to .load
return {
'system.load.1': float(load[0]),
'system.load.5': float(load[1]),
'system.load.15': float(load[2]),
'system.load.norm.1': float(load[0]) / cores,
'system.load.norm.5': float(load[1]) / cores,
'system.load.norm.15': float(load[2]) / cores,
}
except Exception:
# No normalized load available
return {
'system.load.1': float(load[0]),
'system.load.5': float(load[1]),
'system.load.15': float(load[2])
}
def testLoad(self):
global logger
load = Load(logger)
res = load.check({"system_stats": get_system_stats()})
assert "system.load.1" in res
if Platform.is_linux():
cores = int(get_system_stats().get("cpuCores"))
assert "system.load.norm.1" in res
assert abs(res["system.load.1"] - cores * res["system.load.norm.1"]) <= 0.1, (
res["system.load.1"],
cores * res["system.load.norm.1"],
)
# same test but without cpu count, no normalized load sent.
res = load.check({})
assert "system.load.1" in res
assert "system.load.norm.1" not in res
def check(self, instance):
if instance is None:
instance = {}
self._excluded_ifaces = instance.get('excluded_interfaces', [])
self._collect_cx_state = instance.get('collect_connection_state', False)
self._exclude_iface_re = None
exclude_re = instance.get('excluded_interface_re', None)
if exclude_re:
self.log.debug("Excluding network devices matching: %s" % exclude_re)
self._exclude_iface_re = re.compile(exclude_re)
if Platform.is_linux():
self._check_linux(instance)
elif Platform.is_bsd():
self._check_bsd(instance)
elif Platform.is_solaris():
self._check_solaris(instance)
def check(self, agentConfig):
if Platform.is_linux():
try:
loadAvrgProc = open('/proc/loadavg', 'r')
uptime = loadAvrgProc.readlines()
loadAvrgProc.close()
except Exception:
self.logger.exception('Cannot extract load')
return False
uptime = uptime[0] # readlines() provides a list but we want a string
elif sys.platform in ('darwin', 'sunos5') or sys.platform.startswith("freebsd"):
# Get output from uptime
try:
uptime = sp.Popen(['uptime'],
stdout=sp.PIPE,
close_fds=True).communicate()[0]
except Exception:
self.logger.exception('Cannot extract load')
return False
# Split out the 3 load average values
load = [res.replace(',', '.') for res in re.findall(r'([0-9]+[\.,]\d+)', uptime)]
# Normalize load by number of cores
try:
cores = int(agentConfig.get('system_stats').get('cpuCores'))
assert cores >= 1, "Cannot determine number of cores"
# Compute a normalized load, named .load.norm to make it easy to find next to .load
return {'system.load.1': float(load[0]),
'system.load.5': float(load[1]),
'system.load.15': float(load[2]),
'system.load.norm.1': float(load[0])/cores,
'system.load.norm.5': float(load[1])/cores,
'system.load.norm.15': float(load[2])/cores,
}
except Exception:
# No normalized load available
return {'system.load.1': float(load[0]),
'system.load.5': float(load[1]),
'system.load.15': float(load[2])}
def check(self, instance):
if instance is None:
instance = {}
self._excluded_ifaces = instance.get('excluded_interfaces', [])
self._collect_cx_state = instance.get('collect_connection_state',
False)
self._exclude_iface_re = None
exclude_re = instance.get('excluded_interface_re', None)
if exclude_re:
self.log.debug("Excluding network devices matching: %s" %
exclude_re)
self._exclude_iface_re = re.compile(exclude_re)
if Platform.is_linux():
self._check_linux(instance)
elif Platform.is_bsd():
self._check_bsd(instance)
elif Platform.is_solaris():
self._check_solaris(instance)
def check(self, agentConfig):
"""Return an aggregate of CPU stats across all CPUs
When figures are not available, False is sent back.
"""
def format_results(us, sy, wa, idle, st):
data = { 'cpuUser': us, 'cpuSystem': sy, 'cpuWait': wa, 'cpuIdle': idle, 'cpuStolen': st }
for key in data.keys():
if data[key] is None:
del data[key]
return data
def get_value(legend, data, name, filter_value=None):
"Using the legend and a metric name, get the value or None from the data line"
if name in legend:
value = to_float(data[legend.index(name)])
if filter_value is not None:
if value > filter_value:
return None
return value
else:
# FIXME return a float or False, would trigger type error if not python
self.logger.debug("Cannot extract cpu value %s from %s (%s)" % (name, data, legend))
return 0.0
if Platform.is_linux():
mpstat = sp.Popen(['mpstat', '1', '3'], stdout=sp.PIPE, close_fds=True).communicate()[0]
# topdog@ip:~$ mpstat 1 3
# Linux 2.6.32-341-ec2 (ip) 01/19/2012 _x86_64_ (2 CPU)
#
# 04:22:41 PM CPU %usr %nice %sys %iowait %irq %soft %steal %guest %idle
# 04:22:42 PM all 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00
# 04:22:43 PM all 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00
# 04:22:44 PM all 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00
# Average: all 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00
#
# OR
#
# Thanks to Mart Visser to spotting this one.
# blah:/etc/dd-agent# mpstat
# Linux 2.6.26-2-xen-amd64 (atira) 02/17/2012 _x86_64_
#
# 05:27:03 PM CPU %user %nice %sys %iowait %irq %soft %steal %idle intr/s
# 05:27:03 PM all 3.59 0.00 0.68 0.69 0.00 0.00 0.01 95.03 43.65
#
lines = mpstat.split("\n")
legend = [l for l in lines if "%usr" in l or "%user" in l]
avg = [l for l in lines if "Average" in l]
if len(legend) == 1 and len(avg) == 1:
headers = [h for h in legend[0].split() if h not in ("AM", "PM")]
data = avg[0].split()
# Userland
# Debian lenny says %user so we look for both
# One of them will be 0
cpu_metrics = {
"%usr":None, "%user":None, "%nice":None,
"%iowait":None, "%idle":None, "%sys":None,
"%irq":None, "%soft":None, "%steal":None,
}
for cpu_m in cpu_metrics:
cpu_metrics[cpu_m] = get_value(headers, data, cpu_m, filter_value=110)
if any([v is None for v in cpu_metrics.values()]):
self.logger.warning("Invalid mpstat data: %s" % data)
cpu_user = cpu_metrics["%usr"] + cpu_metrics["%user"] + cpu_metrics["%nice"]
cpu_system = cpu_metrics["%sys"] + cpu_metrics["%irq"] + cpu_metrics["%soft"]
cpu_wait = cpu_metrics["%iowait"]
cpu_idle = cpu_metrics["%idle"]
cpu_stolen = cpu_metrics["%steal"]
return format_results(cpu_user,
cpu_system,
cpu_wait,
cpu_idle,
cpu_stolen)
else:
return False
elif sys.platform == 'darwin':
# generate 3 seconds of data
# [' disk0 disk1 cpu load average', ' KB/t tps MB/s KB/t tps MB/s us sy id 1m 5m 15m', ' 21.23 13 0.27 17.85 7 0.13 14 7 79 1.04 1.27 1.31', ' 4.00 3 0.01 5.00 8 0.04 12 10 78 1.04 1.27 1.31', '']
iostats = sp.Popen(['iostat', '-C', '-w', '3', '-c', '2'], stdout=sp.PIPE, close_fds=True).communicate()[0]
lines = [l for l in iostats.split("\n") if len(l) > 0]
legend = [l for l in lines if "us" in l]
if len(legend) == 1:
headers = legend[0].split()
data = lines[-1].split()
cpu_user = get_value(headers, data, "us")
cpu_sys = get_value(headers, data, "sy")
cpu_wait = 0
cpu_idle = get_value(headers, data, "id")
cpu_st = 0
return format_results(cpu_user, cpu_sys, cpu_wait, cpu_idle, cpu_st)
else:
self.logger.warn("Expected to get at least 4 lines of data from iostat instead of just " + str(iostats[:max(80, len(iostats))]))
return False
elif sys.platform.startswith("freebsd"):
# generate 3 seconds of data
# tty ada0 cd0 pass0 cpu
# tin tout KB/t tps MB/s KB/t tps MB/s KB/t tps MB/s us ni sy in id
# 0 69 26.71 0 0.01 0.00 0 0.00 0.00 0 0.00 2 0 0 1 97
# 0 78 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0 0 0 0 100
iostats = sp.Popen(['iostat', '-w', '3', '-c', '2'], stdout=sp.PIPE, close_fds=True).communicate()[0]
lines = [l for l in iostats.split("\n") if len(l) > 0]
legend = [l for l in lines if "us" in l]
if len(legend) == 1:
headers = legend[0].split()
data = lines[-1].split()
cpu_user = get_value(headers, data, "us")
cpu_nice = get_value(headers, data, "ni")
cpu_sys = get_value(headers, data, "sy")
cpu_intr = get_value(headers, data, "in")
cpu_wait = 0
cpu_idle = get_value(headers, data, "id")
cpu_stol = 0
return format_results(cpu_user + cpu_nice, cpu_sys + cpu_intr, cpu_wait, cpu_idle, cpu_stol);
else:
self.logger.warn("Expected to get at least 4 lines of data from iostat instead of just " + str(iostats[:max(80, len(iostats))]))
return False
elif sys.platform == 'sunos5':
# mpstat -aq 1 2
# SET minf mjf xcal intr ithr csw icsw migr smtx srw syscl usr sys wt idl sze
# 0 5239 0 12857 22969 5523 14628 73 546 4055 1 146856 5 6 0 89 24 <-- since boot
# 1 ...
# SET minf mjf xcal intr ithr csw icsw migr smtx srw syscl usr sys wt idl sze
# 0 20374 0 45634 57792 5786 26767 80 876 20036 2 724475 13 13 0 75 24 <-- past 1s
# 1 ...
# http://docs.oracle.com/cd/E23824_01/html/821-1462/mpstat-1m.html
#
# Will aggregate over all processor sets
try:
mpstat = sp.Popen(['mpstat', '-aq', '1', '2'], stdout=sp.PIPE, close_fds=True).communicate()[0]
lines = [l for l in mpstat.split("\n") if len(l) > 0]
# discard the first len(lines)/2 lines
lines = lines[len(lines)/2:]
legend = [l for l in lines if "SET" in l]
assert len(legend) == 1
if len(legend) == 1:
headers = legend[0].split()
# collect stats for each processor set
# and aggregate them based on the relative set size
d_lines = [l for l in lines if "SET" not in l]
user = [get_value(headers, l.split(), "usr") for l in d_lines]
kern = [get_value(headers, l.split(), "sys") for l in d_lines]
wait = [get_value(headers, l.split(), "wt") for l in d_lines]
idle = [get_value(headers, l.split(), "idl") for l in d_lines]
size = [get_value(headers, l.split(), "sze") for l in d_lines]
count = sum(size)
rel_size = [s/count for s in size]
dot = lambda v1, v2: reduce(operator.add, map(operator.mul, v1, v2))
return format_results(dot(user, rel_size),
dot(kern, rel_size),
dot(wait, rel_size),
dot(idle, rel_size),
0.0)
except Exception:
self.logger.exception("Cannot compute CPU stats")
return False
else:
self.logger.warn("CPUStats: unsupported platform")
return False
def check(self, agentConfig):
if Platform.is_linux():
try:
meminfoProc = open('/proc/meminfo', 'r')
lines = meminfoProc.readlines()
meminfoProc.close()
except Exception:
self.logger.exception('Cannot get memory metrics from /proc/meminfo')
return False
# $ cat /proc/meminfo
# MemTotal: 7995360 kB
# MemFree: 1045120 kB
# Buffers: 226284 kB
# Cached: 775516 kB
# SwapCached: 248868 kB
# Active: 1004816 kB
# Inactive: 1011948 kB
# Active(anon): 455152 kB
# Inactive(anon): 584664 kB
# Active(file): 549664 kB
# Inactive(file): 427284 kB
# Unevictable: 4392476 kB
# Mlocked: 4392476 kB
# SwapTotal: 11120632 kB
# SwapFree: 10555044 kB
# Dirty: 2948 kB
# Writeback: 0 kB
# AnonPages: 5203560 kB
# Mapped: 50520 kB
# Shmem: 10108 kB
# Slab: 161300 kB
# SReclaimable: 136108 kB
# SUnreclaim: 25192 kB
# KernelStack: 3160 kB
# PageTables: 26776 kB
# NFS_Unstable: 0 kB
# Bounce: 0 kB
# WritebackTmp: 0 kB
# CommitLimit: 15118312 kB
# Committed_AS: 6703508 kB
# VmallocTotal: 34359738367 kB
# VmallocUsed: 400668 kB
# VmallocChunk: 34359329524 kB
# HardwareCorrupted: 0 kB
# HugePages_Total: 0
# HugePages_Free: 0
# HugePages_Rsvd: 0
# HugePages_Surp: 0
# Hugepagesize: 2048 kB
# DirectMap4k: 10112 kB
# DirectMap2M: 8243200 kB
regexp = re.compile(r'^(\w+):\s+([0-9]+)') # We run this several times so one-time compile now
meminfo = {}
for line in lines:
try:
match = re.search(regexp, line)
if match is not None:
meminfo[match.group(1)] = match.group(2)
except Exception:
self.logger.exception("Cannot parse /proc/meminfo")
memData = {}
# Physical memory
# FIXME units are in MB, we should use bytes instead
try:
memData['physTotal'] = int(meminfo.get('MemTotal', 0)) / 1024
memData['physFree'] = int(meminfo.get('MemFree', 0)) / 1024
memData['physBuffers'] = int(meminfo.get('Buffers', 0)) / 1024
memData['physCached'] = int(meminfo.get('Cached', 0)) / 1024
memData['physShared'] = int(meminfo.get('Shmem', 0)) / 1024
memData['physUsed'] = memData['physTotal'] - memData['physFree']
# Usable is relative since cached and buffers are actually used to speed things up.
memData['physUsable'] = memData['physFree'] + memData['physBuffers'] + memData['physCached']
if memData['physTotal'] > 0:
memData['physPctUsable'] = float(memData['physUsable']) / float(memData['physTotal'])
except Exception:
self.logger.exception('Cannot compute stats from /proc/meminfo')
# Swap
# FIXME units are in MB, we should use bytes instead
try:
memData['swapTotal'] = int(meminfo.get('SwapTotal', 0)) / 1024
memData['swapFree'] = int(meminfo.get('SwapFree', 0)) / 1024
memData['swapUsed'] = memData['swapTotal'] - memData['swapFree']
if memData['swapTotal'] > 0:
memData['swapPctFree'] = float(memData['swapFree']) / float(memData['swapTotal'])
except Exception:
self.logger.exception('Cannot compute swap stats')
return memData
elif sys.platform == 'darwin':
macV = platform.mac_ver()
macV_minor_version = int(re.match(r'10\.(\d+)\.?.*', macV[0]).group(1))
try:
top = sp.Popen(['top', '-l 1'], stdout=sp.PIPE, close_fds=True).communicate()[0]
sysctl = sp.Popen(['sysctl', 'vm.swapusage'], stdout=sp.PIPE, close_fds=True).communicate()[0]
except StandardError:
self.logger.exception('getMemoryUsage')
return False
# Deal with top
lines = top.split('\n')
physParts = re.findall(r'([0-9]\d+)', lines[self.topIndex])
# Deal with sysctl
swapParts = re.findall(r'([0-9]+\.\d+)', sysctl)
# Mavericks changes the layout of physical memory format in `top`
physUsedPartIndex = 3
physFreePartIndex = 4
if macV and (macV_minor_version >= 9):
physUsedPartIndex = 0
physFreePartIndex = 2
return {'physUsed' : physParts[physUsedPartIndex], 'physFree' : physParts[physFreePartIndex], 'swapUsed' : swapParts[1], 'swapFree' : swapParts[2]}
elif sys.platform.startswith("freebsd"):
try:
sysctl = sp.Popen(['sysctl', 'vm.stats.vm'], stdout=sp.PIPE, close_fds=True).communicate()[0]
except Exception:
self.logger.exception('getMemoryUsage')
return False
lines = sysctl.split('\n')
# ...
# vm.stats.vm.v_page_size: 4096
# vm.stats.vm.v_page_count: 759884
# vm.stats.vm.v_wire_count: 122726
# vm.stats.vm.v_active_count: 109350
# vm.stats.vm.v_cache_count: 17437
# vm.stats.vm.v_inactive_count: 479673
# vm.stats.vm.v_free_count: 30542
# ...
# We run this several times so one-time compile now
regexp = re.compile(r'^vm\.stats\.vm\.(\w+):\s+([0-9]+)')
meminfo = {}
for line in lines:
try:
match = re.search(regexp, line)
if match is not None:
meminfo[match.group(1)] = match.group(2)
except Exception:
self.logger.exception("Cannot parse sysctl vm.stats.vm output")
memData = {}
# Physical memory
try:
pageSize = int(meminfo.get('v_page_size'))
memData['physTotal'] = (int(meminfo.get('v_page_count', 0))
* pageSize) / 1048576
memData['physFree'] = (int(meminfo.get('v_free_count', 0))
* pageSize) / 1048576
memData['physCached'] = (int(meminfo.get('v_cache_count', 0))
* pageSize) / 1048576
memData['physUsed'] = ((int(meminfo.get('v_active_count'), 0) +
int(meminfo.get('v_wire_count', 0)))
* pageSize) / 1048576
memData['physUsable'] = ((int(meminfo.get('v_free_count'), 0) +
int(meminfo.get('v_cache_count', 0)) +
int(meminfo.get('v_inactive_count', 0))) *
pageSize) / 1048576
if memData['physTotal'] > 0:
memData['physPctUsable'] = float(memData['physUsable']) / float(memData['physTotal'])
except Exception:
self.logger.exception('Cannot compute stats from /proc/meminfo')
# Swap
try:
sysctl = sp.Popen(['swapinfo', '-m'], stdout=sp.PIPE, close_fds=True).communicate()[0]
except Exception:
self.logger.exception('getMemoryUsage')
return False
lines = sysctl.split('\n')
# ...
# Device 1M-blocks Used Avail Capacity
# /dev/ad0s1b 570 0 570 0%
# ...
assert "Device" in lines[0]
try:
memData['swapTotal'] = 0
memData['swapFree'] = 0
memData['swapUsed'] = 0
for line in lines[1:-1]:
line = line.split()
memData['swapTotal'] += int(line[1])
memData['swapFree'] += int(line[3])
memData['swapUsed'] += int(line[2])
except Exception:
self.logger.exception('Cannot compute stats from swapinfo')
return memData;
elif sys.platform == 'sunos5':
try:
memData = {}
kmem = sp.Popen(["kstat", "-c", "zone_memory_cap", "-p"],
stdout=sp.PIPE,
close_fds=True).communicate()[0]
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:anon_alloc_fail 0
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:anonpgin 0
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:class zone_memory_cap
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:crtime 16359935.0680834
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:execpgin 185
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:fspgin 2556
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:n_pf_throttle 0
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:n_pf_throttle_usec 0
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:nover 0
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:pagedout 0
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:pgpgin 2741
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:physcap 536870912 <--
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:rss 115544064 <--
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:snaptime 16787393.9439095
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:swap 91828224 <--
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:swapcap 1073741824 <--
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:zonename 53aa9b7e-48ba-4152-a52b-a6368c3d9e7c
# turn memory_cap:360:zone_name:key value
# into { "key": value, ...}
kv = [l.strip().split() for l in kmem.split("\n") if len(l) > 0]
entries = dict([(k.split(":")[-1], v) for (k, v) in kv])
# extract rss, physcap, swap, swapcap, turn into MB
convert = lambda v: int(long(v))/2**20
memData["physTotal"] = convert(entries["physcap"])
memData["physUsed"] = convert(entries["rss"])
memData["physFree"] = memData["physTotal"] - memData["physUsed"]
memData["swapTotal"] = convert(entries["swapcap"])
memData["swapUsed"] = convert(entries["swap"])
memData["swapFree"] = memData["swapTotal"] - memData["swapUsed"]
if memData['swapTotal'] > 0:
memData['swapPctFree'] = float(memData['swapFree']) / float(memData['swapTotal'])
return memData
except Exception:
self.logger.exception("Cannot compute mem stats from kstat -c zone_memory_cap")
return False
else:
return False
def check(self, agentConfig):
"""Capture io stats.
@rtype dict
@return {"device": {"metric": value, "metric": value}, ...}
"""
io = {}
try:
if Platform.is_linux():
stdout = sp.Popen(['iostat', '-d', '1', '2', '-x', '-k'],
stdout=sp.PIPE,
close_fds=True).communicate()[0]
# Linux 2.6.32-343-ec2 (ip-10-35-95-10) 12/11/2012 _x86_64_ (2 CPU)
#
# Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util
# sda1 0.00 17.61 0.26 32.63 4.23 201.04 12.48 0.16 4.81 0.53 1.73
# sdb 0.00 2.68 0.19 3.84 5.79 26.07 15.82 0.02 4.93 0.22 0.09
# sdg 0.00 0.13 2.29 3.84 100.53 30.61 42.78 0.05 8.41 0.88 0.54
# sdf 0.00 0.13 2.30 3.84 100.54 30.61 42.78 0.06 9.12 0.90 0.55
# md0 0.00 0.00 0.05 3.37 1.41 30.01 18.35 0.00 0.00 0.00 0.00
#
# Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util
# sda1 0.00 0.00 0.00 10.89 0.00 43.56 8.00 0.03 2.73 2.73 2.97
# sdb 0.00 0.00 0.00 2.97 0.00 11.88 8.00 0.00 0.00 0.00 0.00
# sdg 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
# sdf 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
# md0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
io.update(self._parse_linux2(stdout))
elif sys.platform == "sunos5":
iostat = sp.Popen(["iostat", "-x", "-d", "1", "2"],
stdout=sp.PIPE,
close_fds=True).communicate()[0]
# extended device statistics <-- since boot
# device r/s w/s kr/s kw/s wait actv svc_t %w %b
# ramdisk1 0.0 0.0 0.1 0.1 0.0 0.0 0.0 0 0
# sd0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0
# sd1 79.9 149.9 1237.6 6737.9 0.0 0.5 2.3 0 11
# extended device statistics <-- past second
# device r/s w/s kr/s kw/s wait actv svc_t %w %b
# ramdisk1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0
# sd0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0
# sd1 0.0 139.0 0.0 1850.6 0.0 0.0 0.1 0 1
# discard the first half of the display (stats since boot)
lines = [l for l in iostat.split("\n") if len(l) > 0]
lines = lines[len(lines)/2:]
assert "extended device statistics" in lines[0]
headers = lines[1].split()
assert "device" in headers
for l in lines[2:]:
cols = l.split()
# cols[0] is the device
# cols[1:] are the values
io[cols[0]] = {}
for i in range(1, len(cols)):
io[cols[0]][self.xlate(headers[i], "sunos")] = cols[i]
elif sys.platform.startswith("freebsd"):
iostat = sp.Popen(["iostat", "-x", "-d", "1", "2"],
stdout=sp.PIPE,
close_fds=True).communicate()[0]
# Be careful!
# It looks like SunOS, but some columms (wait, svc_t) have different meaning
# extended device statistics
# device r/s w/s kr/s kw/s wait svc_t %b
# ad0 3.1 1.3 49.9 18.8 0 0.7 0
# extended device statistics
# device r/s w/s kr/s kw/s wait svc_t %b
# ad0 0.0 2.0 0.0 31.8 0 0.2 0
# discard the first half of the display (stats since boot)
lines = [l for l in iostat.split("\n") if len(l) > 0]
lines = lines[len(lines)/2:]
assert "extended device statistics" in lines[0]
headers = lines[1].split()
assert "device" in headers
for l in lines[2:]:
cols = l.split()
# cols[0] is the device
# cols[1:] are the values
io[cols[0]] = {}
for i in range(1, len(cols)):
io[cols[0]][self.xlate(headers[i], "freebsd")] = cols[i]
elif sys.platform == 'darwin':
iostat = sp.Popen(['iostat', '-d', '-c', '2', '-w', '1'],
stdout=sp.PIPE,
close_fds=True).communicate()[0]
# disk0 disk1 <-- number of disks
# KB/t tps MB/s KB/t tps MB/s
# 21.11 23 0.47 20.01 0 0.00
# 6.67 3 0.02 0.00 0 0.00 <-- line of interest
io = self._parse_darwin(iostat)
else:
return False
# If we filter devices, do it know.
device_blacklist_re = agentConfig.get('device_blacklist_re', None)
if device_blacklist_re:
filtered_io = {}
for device, stats in io.iteritems():
if not device_blacklist_re.match(device):
filtered_io[device] = stats
else:
filtered_io = io
return filtered_io
except Exception:
self.logger.exception("Cannot extract IO statistics")
return False
def check(self, agentConfig):
if Platform.is_linux():
with open("/proc/uptime", "r") as f:
uptime_seconds = float(f.readline().split()[0])
return {"system.uptime": uptime_seconds}
return {}
def check(self, agentConfig):
"""Return an aggregate of CPU stats across all CPUs
When figures are not available, False is sent back.
"""
def format_results(us, sy, wa, idle, st):
data = {
'cpuUser': us,
'cpuSystem': sy,
'cpuWait': wa,
'cpuIdle': idle,
'cpuStolen': st
}
for key in data.keys():
if data[key] is None:
del data[key]
return data
def get_value(legend, data, name, filter_value=None):
"Using the legend and a metric name, get the value or None from the data line"
if name in legend:
value = to_float(data[legend.index(name)])
if filter_value is not None:
if value > filter_value:
return None
return value
else:
# FIXME return a float or False, would trigger type error if not python
self.logger.debug("Cannot extract cpu value %s from %s (%s)" %
(name, data, legend))
return 0.0
if Platform.is_linux():
mpstat = sp.Popen(['mpstat', '1', '3'],
stdout=sp.PIPE,
close_fds=True).communicate()[0]
# topdog@ip:~$ mpstat 1 3
# Linux 2.6.32-341-ec2 (ip) 01/19/2012 _x86_64_ (2 CPU)
#
# 04:22:41 PM CPU %usr %nice %sys %iowait %irq %soft %steal %guest %idle
# 04:22:42 PM all 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00
# 04:22:43 PM all 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00
# 04:22:44 PM all 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00
# Average: all 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00
#
# OR
#
# Thanks to Mart Visser to spotting this one.
# blah:/etc/dd-agent# mpstat
# Linux 2.6.26-2-xen-amd64 (atira) 02/17/2012 _x86_64_
#
# 05:27:03 PM CPU %user %nice %sys %iowait %irq %soft %steal %idle intr/s
# 05:27:03 PM all 3.59 0.00 0.68 0.69 0.00 0.00 0.01 95.03 43.65
#
lines = mpstat.split("\n")
legend = [l for l in lines if "%usr" in l or "%user" in l]
avg = [l for l in lines if "Average" in l]
if len(legend) == 1 and len(avg) == 1:
headers = [
h for h in legend[0].split() if h not in ("AM", "PM")
]
data = avg[0].split()
# Userland
# Debian lenny says %user so we look for both
# One of them will be 0
cpu_metrics = {
"%usr": None,
"%user": None,
"%nice": None,
"%iowait": None,
"%idle": None,
"%sys": None,
"%irq": None,
"%soft": None,
"%steal": None,
}
for cpu_m in cpu_metrics:
cpu_metrics[cpu_m] = get_value(headers,
data,
cpu_m,
filter_value=110)
if any([v is None for v in cpu_metrics.values()]):
self.logger.warning("Invalid mpstat data: %s" % data)
cpu_user = cpu_metrics["%usr"] + cpu_metrics[
"%user"] + cpu_metrics["%nice"]
cpu_system = cpu_metrics["%sys"] + cpu_metrics[
"%irq"] + cpu_metrics["%soft"]
cpu_wait = cpu_metrics["%iowait"]
cpu_idle = cpu_metrics["%idle"]
cpu_stolen = cpu_metrics["%steal"]
return format_results(cpu_user, cpu_system, cpu_wait, cpu_idle,
cpu_stolen)
else:
return False
elif sys.platform == 'darwin':
# generate 3 seconds of data
# [' disk0 disk1 cpu load average', ' KB/t tps MB/s KB/t tps MB/s us sy id 1m 5m 15m', ' 21.23 13 0.27 17.85 7 0.13 14 7 79 1.04 1.27 1.31', ' 4.00 3 0.01 5.00 8 0.04 12 10 78 1.04 1.27 1.31', '']
iostats = sp.Popen(['iostat', '-C', '-w', '3', '-c', '2'],
stdout=sp.PIPE,
close_fds=True).communicate()[0]
lines = [l for l in iostats.split("\n") if len(l) > 0]
legend = [l for l in lines if "us" in l]
if len(legend) == 1:
headers = legend[0].split()
data = lines[-1].split()
cpu_user = get_value(headers, data, "us")
cpu_sys = get_value(headers, data, "sy")
cpu_wait = 0
cpu_idle = get_value(headers, data, "id")
cpu_st = 0
return format_results(cpu_user, cpu_sys, cpu_wait, cpu_idle,
cpu_st)
else:
self.logger.warn(
"Expected to get at least 4 lines of data from iostat instead of just "
+ str(iostats[:max(80, len(iostats))]))
return False
elif sys.platform.startswith("freebsd"):
# generate 3 seconds of data
# tty ada0 cd0 pass0 cpu
# tin tout KB/t tps MB/s KB/t tps MB/s KB/t tps MB/s us ni sy in id
# 0 69 26.71 0 0.01 0.00 0 0.00 0.00 0 0.00 2 0 0 1 97
# 0 78 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0 0 0 0 100
iostats = sp.Popen(['iostat', '-w', '3', '-c', '2'],
stdout=sp.PIPE,
close_fds=True).communicate()[0]
lines = [l for l in iostats.split("\n") if len(l) > 0]
legend = [l for l in lines if "us" in l]
if len(legend) == 1:
headers = legend[0].split()
data = lines[-1].split()
cpu_user = get_value(headers, data, "us")
cpu_nice = get_value(headers, data, "ni")
cpu_sys = get_value(headers, data, "sy")
cpu_intr = get_value(headers, data, "in")
cpu_wait = 0
cpu_idle = get_value(headers, data, "id")
cpu_stol = 0
return format_results(cpu_user + cpu_nice, cpu_sys + cpu_intr,
cpu_wait, cpu_idle, cpu_stol)
else:
self.logger.warn(
"Expected to get at least 4 lines of data from iostat instead of just "
+ str(iostats[:max(80, len(iostats))]))
return False
elif sys.platform == 'sunos5':
# mpstat -aq 1 2
# SET minf mjf xcal intr ithr csw icsw migr smtx srw syscl usr sys wt idl sze
# 0 5239 0 12857 22969 5523 14628 73 546 4055 1 146856 5 6 0 89 24 <-- since boot
# 1 ...
# SET minf mjf xcal intr ithr csw icsw migr smtx srw syscl usr sys wt idl sze
# 0 20374 0 45634 57792 5786 26767 80 876 20036 2 724475 13 13 0 75 24 <-- past 1s
# 1 ...
# http://docs.oracle.com/cd/E23824_01/html/821-1462/mpstat-1m.html
#
# Will aggregate over all processor sets
try:
mpstat = sp.Popen(['mpstat', '-aq', '1', '2'],
stdout=sp.PIPE,
close_fds=True).communicate()[0]
lines = [l for l in mpstat.split("\n") if len(l) > 0]
# discard the first len(lines)/2 lines
lines = lines[len(lines) / 2:]
legend = [l for l in lines if "SET" in l]
assert len(legend) == 1
if len(legend) == 1:
headers = legend[0].split()
# collect stats for each processor set
# and aggregate them based on the relative set size
d_lines = [l for l in lines if "SET" not in l]
user = [
get_value(headers, l.split(), "usr") for l in d_lines
]
kern = [
get_value(headers, l.split(), "sys") for l in d_lines
]
wait = [
get_value(headers, l.split(), "wt") for l in d_lines
]
idle = [
get_value(headers, l.split(), "idl") for l in d_lines
]
size = [
get_value(headers, l.split(), "sze") for l in d_lines
]
count = sum(size)
rel_size = [s / count for s in size]
dot = lambda v1, v2: reduce(operator.add,
map(operator.mul, v1, v2))
return format_results(dot(user, rel_size),
dot(kern, rel_size),
dot(wait, rel_size),
dot(idle, rel_size), 0.0)
except Exception:
self.logger.exception("Cannot compute CPU stats")
return False
else:
self.logger.warn("CPUStats: unsupported platform")
return False
def check(self, agentConfig):
if Platform.is_linux():
try:
meminfoProc = open('/proc/meminfo', 'r')
lines = meminfoProc.readlines()
meminfoProc.close()
except Exception:
self.logger.exception(
'Cannot get memory metrics from /proc/meminfo')
return False
# $ cat /proc/meminfo
# MemTotal: 7995360 kB
# MemFree: 1045120 kB
# Buffers: 226284 kB
# Cached: 775516 kB
# SwapCached: 248868 kB
# Active: 1004816 kB
# Inactive: 1011948 kB
# Active(anon): 455152 kB
# Inactive(anon): 584664 kB
# Active(file): 549664 kB
# Inactive(file): 427284 kB
# Unevictable: 4392476 kB
# Mlocked: 4392476 kB
# SwapTotal: 11120632 kB
# SwapFree: 10555044 kB
# Dirty: 2948 kB
# Writeback: 0 kB
# AnonPages: 5203560 kB
# Mapped: 50520 kB
# Shmem: 10108 kB
# Slab: 161300 kB
# SReclaimable: 136108 kB
# SUnreclaim: 25192 kB
# KernelStack: 3160 kB
# PageTables: 26776 kB
# NFS_Unstable: 0 kB
# Bounce: 0 kB
# WritebackTmp: 0 kB
# CommitLimit: 15118312 kB
# Committed_AS: 6703508 kB
# VmallocTotal: 34359738367 kB
# VmallocUsed: 400668 kB
# VmallocChunk: 34359329524 kB
# HardwareCorrupted: 0 kB
# HugePages_Total: 0
# HugePages_Free: 0
# HugePages_Rsvd: 0
# HugePages_Surp: 0
# Hugepagesize: 2048 kB
# DirectMap4k: 10112 kB
# DirectMap2M: 8243200 kB
regexp = re.compile(
r'^(\w+):\s+([0-9]+)'
) # We run this several times so one-time compile now
meminfo = {}
for line in lines:
try:
match = re.search(regexp, line)
if match is not None:
meminfo[match.group(1)] = match.group(2)
except Exception:
self.logger.exception("Cannot parse /proc/meminfo")
memData = {}
# Physical memory
# FIXME units are in MB, we should use bytes instead
try:
memData['physTotal'] = int(meminfo.get('MemTotal', 0)) / 1024
memData['physFree'] = int(meminfo.get('MemFree', 0)) / 1024
memData['physBuffers'] = int(meminfo.get('Buffers', 0)) / 1024
memData['physCached'] = int(meminfo.get('Cached', 0)) / 1024
memData['physShared'] = int(meminfo.get('Shmem', 0)) / 1024
memData[
'physUsed'] = memData['physTotal'] - memData['physFree']
# Usable is relative since cached and buffers are actually used to speed things up.
memData['physUsable'] = memData['physFree'] + memData[
'physBuffers'] + memData['physCached']
if memData['physTotal'] > 0:
memData['physPctUsable'] = float(
memData['physUsable']) / float(memData['physTotal'])
except Exception:
self.logger.exception(
'Cannot compute stats from /proc/meminfo')
# Swap
# FIXME units are in MB, we should use bytes instead
try:
memData['swapTotal'] = int(meminfo.get('SwapTotal', 0)) / 1024
memData['swapFree'] = int(meminfo.get('SwapFree', 0)) / 1024
memData[
'swapUsed'] = memData['swapTotal'] - memData['swapFree']
if memData['swapTotal'] > 0:
memData['swapPctFree'] = float(
memData['swapFree']) / float(memData['swapTotal'])
except Exception:
self.logger.exception('Cannot compute swap stats')
return memData
elif sys.platform == 'darwin':
macV = platform.mac_ver()
macV_minor_version = int(
re.match(r'10\.(\d+)\.?.*', macV[0]).group(1))
try:
top = sp.Popen(['top', '-l 1'], stdout=sp.PIPE,
close_fds=True).communicate()[0]
sysctl = sp.Popen(['sysctl', 'vm.swapusage'],
stdout=sp.PIPE,
close_fds=True).communicate()[0]
except StandardError:
self.logger.exception('getMemoryUsage')
return False
# Deal with top
lines = top.split('\n')
physParts = re.findall(r'([0-9]\d+)', lines[self.topIndex])
# Deal with sysctl
swapParts = re.findall(r'([0-9]+\.\d+)', sysctl)
# Mavericks changes the layout of physical memory format in `top`
physUsedPartIndex = 3
physFreePartIndex = 4
if macV and (macV_minor_version >= 9):
physUsedPartIndex = 0
physFreePartIndex = 2
return {
'physUsed': physParts[physUsedPartIndex],
'physFree': physParts[physFreePartIndex],
'swapUsed': swapParts[1],
'swapFree': swapParts[2]
}
elif sys.platform.startswith("freebsd"):
try:
sysctl = sp.Popen(['sysctl', 'vm.stats.vm'],
stdout=sp.PIPE,
close_fds=True).communicate()[0]
except Exception:
self.logger.exception('getMemoryUsage')
return False
lines = sysctl.split('\n')
# ...
# vm.stats.vm.v_page_size: 4096
# vm.stats.vm.v_page_count: 759884
# vm.stats.vm.v_wire_count: 122726
# vm.stats.vm.v_active_count: 109350
# vm.stats.vm.v_cache_count: 17437
# vm.stats.vm.v_inactive_count: 479673
# vm.stats.vm.v_free_count: 30542
# ...
# We run this several times so one-time compile now
regexp = re.compile(r'^vm\.stats\.vm\.(\w+):\s+([0-9]+)')
meminfo = {}
for line in lines:
try:
match = re.search(regexp, line)
if match is not None:
meminfo[match.group(1)] = match.group(2)
except Exception:
self.logger.exception(
"Cannot parse sysctl vm.stats.vm output")
memData = {}
# Physical memory
try:
pageSize = int(meminfo.get('v_page_size'))
memData['physTotal'] = (int(meminfo.get('v_page_count', 0)) *
pageSize) / 1048576
memData['physFree'] = (int(meminfo.get('v_free_count', 0)) *
pageSize) / 1048576
memData['physCached'] = (int(meminfo.get('v_cache_count', 0)) *
pageSize) / 1048576
memData['physUsed'] = (
(int(meminfo.get('v_active_count'), 0) +
int(meminfo.get('v_wire_count', 0))) * pageSize) / 1048576
memData['physUsable'] = (
(int(meminfo.get('v_free_count'), 0) +
int(meminfo.get('v_cache_count', 0)) +
int(meminfo.get('v_inactive_count', 0))) *
pageSize) / 1048576
if memData['physTotal'] > 0:
memData['physPctUsable'] = float(
memData['physUsable']) / float(memData['physTotal'])
except Exception:
self.logger.exception(
'Cannot compute stats from /proc/meminfo')
# Swap
try:
sysctl = sp.Popen(['swapinfo', '-m'],
stdout=sp.PIPE,
close_fds=True).communicate()[0]
except Exception:
self.logger.exception('getMemoryUsage')
return False
lines = sysctl.split('\n')
# ...
# Device 1M-blocks Used Avail Capacity
# /dev/ad0s1b 570 0 570 0%
# ...
assert "Device" in lines[0]
try:
memData['swapTotal'] = 0
memData['swapFree'] = 0
memData['swapUsed'] = 0
for line in lines[1:-1]:
line = line.split()
memData['swapTotal'] += int(line[1])
memData['swapFree'] += int(line[3])
memData['swapUsed'] += int(line[2])
except Exception:
self.logger.exception('Cannot compute stats from swapinfo')
return memData
elif sys.platform == 'sunos5':
try:
memData = {}
kmem = sp.Popen(["kstat", "-c", "zone_memory_cap", "-p"],
stdout=sp.PIPE,
close_fds=True).communicate()[0]
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:anon_alloc_fail 0
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:anonpgin 0
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:class zone_memory_cap
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:crtime 16359935.0680834
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:execpgin 185
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:fspgin 2556
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:n_pf_throttle 0
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:n_pf_throttle_usec 0
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:nover 0
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:pagedout 0
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:pgpgin 2741
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:physcap 536870912 <--
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:rss 115544064 <--
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:snaptime 16787393.9439095
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:swap 91828224 <--
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:swapcap 1073741824 <--
# memory_cap:360:53aa9b7e-48ba-4152-a52b-a6368c:zonename 53aa9b7e-48ba-4152-a52b-a6368c3d9e7c
# turn memory_cap:360:zone_name:key value
# into { "key": value, ...}
kv = [
l.strip().split() for l in kmem.split("\n") if len(l) > 0
]
entries = dict([(k.split(":")[-1], v) for (k, v) in kv])
# extract rss, physcap, swap, swapcap, turn into MB
convert = lambda v: int(long(v)) / 2**20
memData["physTotal"] = convert(entries["physcap"])
memData["physUsed"] = convert(entries["rss"])
memData[
"physFree"] = memData["physTotal"] - memData["physUsed"]
memData["swapTotal"] = convert(entries["swapcap"])
memData["swapUsed"] = convert(entries["swap"])
memData[
"swapFree"] = memData["swapTotal"] - memData["swapUsed"]
if memData['swapTotal'] > 0:
memData['swapPctFree'] = float(
memData['swapFree']) / float(memData['swapTotal'])
return memData
except Exception:
self.logger.exception(
"Cannot compute mem stats from kstat -c zone_memory_cap")
return False
else:
return False
def check(self, agentConfig):
"""Capture io stats.
@rtype dict
@return {"device": {"metric": value, "metric": value}, ...}
"""
io = {}
try:
if Platform.is_linux():
stdout = sp.Popen(['iostat', '-d', '1', '2', '-x', '-k'],
stdout=sp.PIPE,
close_fds=True).communicate()[0]
# Linux 2.6.32-343-ec2 (ip-10-35-95-10) 12/11/2012 _x86_64_ (2 CPU)
#
# Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util
# sda1 0.00 17.61 0.26 32.63 4.23 201.04 12.48 0.16 4.81 0.53 1.73
# sdb 0.00 2.68 0.19 3.84 5.79 26.07 15.82 0.02 4.93 0.22 0.09
# sdg 0.00 0.13 2.29 3.84 100.53 30.61 42.78 0.05 8.41 0.88 0.54
# sdf 0.00 0.13 2.30 3.84 100.54 30.61 42.78 0.06 9.12 0.90 0.55
# md0 0.00 0.00 0.05 3.37 1.41 30.01 18.35 0.00 0.00 0.00 0.00
#
# Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util
# sda1 0.00 0.00 0.00 10.89 0.00 43.56 8.00 0.03 2.73 2.73 2.97
# sdb 0.00 0.00 0.00 2.97 0.00 11.88 8.00 0.00 0.00 0.00 0.00
# sdg 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
# sdf 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
# md0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
io.update(self._parse_linux2(stdout))
elif sys.platform == "sunos5":
iostat = sp.Popen(["iostat", "-x", "-d", "1", "2"],
stdout=sp.PIPE,
close_fds=True).communicate()[0]
# extended device statistics <-- since boot
# device r/s w/s kr/s kw/s wait actv svc_t %w %b
# ramdisk1 0.0 0.0 0.1 0.1 0.0 0.0 0.0 0 0
# sd0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0
# sd1 79.9 149.9 1237.6 6737.9 0.0 0.5 2.3 0 11
# extended device statistics <-- past second
# device r/s w/s kr/s kw/s wait actv svc_t %w %b
# ramdisk1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0
# sd0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0
# sd1 0.0 139.0 0.0 1850.6 0.0 0.0 0.1 0 1
# discard the first half of the display (stats since boot)
lines = [l for l in iostat.split("\n") if len(l) > 0]
lines = lines[len(lines) / 2:]
assert "extended device statistics" in lines[0]
headers = lines[1].split()
assert "device" in headers
for l in lines[2:]:
cols = l.split()
# cols[0] is the device
# cols[1:] are the values
io[cols[0]] = {}
for i in range(1, len(cols)):
io[cols[0]][self.xlate(headers[i], "sunos")] = cols[i]
elif sys.platform.startswith("freebsd"):
iostat = sp.Popen(["iostat", "-x", "-d", "1", "2"],
stdout=sp.PIPE,
close_fds=True).communicate()[0]
# Be careful!
# It looks like SunOS, but some columms (wait, svc_t) have different meaning
# extended device statistics
# device r/s w/s kr/s kw/s wait svc_t %b
# ad0 3.1 1.3 49.9 18.8 0 0.7 0
# extended device statistics
# device r/s w/s kr/s kw/s wait svc_t %b
# ad0 0.0 2.0 0.0 31.8 0 0.2 0
# discard the first half of the display (stats since boot)
lines = [l for l in iostat.split("\n") if len(l) > 0]
lines = lines[len(lines) / 2:]
assert "extended device statistics" in lines[0]
headers = lines[1].split()
assert "device" in headers
for l in lines[2:]:
cols = l.split()
# cols[0] is the device
# cols[1:] are the values
io[cols[0]] = {}
for i in range(1, len(cols)):
io[cols[0]][self.xlate(headers[i],
"freebsd")] = cols[i]
elif sys.platform == 'darwin':
iostat = sp.Popen(['iostat', '-d', '-c', '2', '-w', '1'],
stdout=sp.PIPE,
close_fds=True).communicate()[0]
# disk0 disk1 <-- number of disks
# KB/t tps MB/s KB/t tps MB/s
# 21.11 23 0.47 20.01 0 0.00
# 6.67 3 0.02 0.00 0 0.00 <-- line of interest
io = self._parse_darwin(iostat)
else:
return False
# If we filter devices, do it know.
device_blacklist_re = agentConfig.get('device_blacklist_re', None)
if device_blacklist_re:
filtered_io = {}
for device, stats in io.iteritems():
if not device_blacklist_re.match(device):
filtered_io[device] = stats
else:
filtered_io = io
return filtered_io
except Exception:
self.logger.exception("Cannot extract IO statistics")
return False
def check(self, agentConfig):
if Platform.is_linux():
with open("/proc/uptime", "r") as f:
uptime_seconds = float(f.readline().split()[0])
return {"system.uptime": uptime_seconds}
return {}
