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, 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 get_process_metrics(self,
pids,
cpu_check_interval,
ignore_denied_access=True):
# initialize process metrics
# process metrics available for all versions of psutil
rss = 0
vms = 0
cpu = 0
thr = 0
voluntary_ctx_switches = 0
involuntary_ctx_switches = 0
# process metrics available for psutil versions 0.6.0 and later
if Platform.is_win32() or Platform.is_solaris():
real = None
else:
real = 0
if Platform.is_unix():
open_file_descriptors = 0
else:
open_file_descriptors = None
# process I/O counters (agent might not have permission to access)
read_count = 0
write_count = 0
read_bytes = 0
write_bytes = 0
got_denied = False
for pid in set(pids):
try:
p = psutil.Process(pid)
try:
if real is not None:
mem = p.memory_info_ex()
real += mem.rss - mem.shared
else:
mem = p.memory_info()
if Platform.is_unix():
ctx_switches = p.num_ctx_switches()
voluntary_ctx_switches += ctx_switches.voluntary
involuntary_ctx_switches += ctx_switches.involuntary
rss += mem.rss
vms += mem.vms
thr += p.num_threads()
cpu += p.cpu_percent(cpu_check_interval)
if open_file_descriptors is not None:
open_file_descriptors += p.num_fds()
except NotImplementedError:
# Handle old Kernels which don't provide this info.
voluntary_ctx_switches = None
involuntary_ctx_switches = None
except AttributeError:
self.log.debug(
"process attribute not supported on this platform")
except psutil.AccessDenied:
got_denied = True
# user agent might not have permission to call io_counters()
# user agent might have access to io counters for some processes and not others
if read_count is not None:
try:
io_counters = p.io_counters()
read_count += io_counters.read_count
write_count += io_counters.write_count
read_bytes += io_counters.read_bytes
write_bytes += io_counters.write_bytes
except AttributeError:
self.log.debug(
"process attribute not supported on this platform")
except psutil.AccessDenied:
log_func = self.log.debug if ignore_denied_access else self.log.info
log_func('dd-agent user does not have access \
to I/O counters for process %d: %s' %
(pid, p.name()))
read_count = None
write_count = None
read_bytes = None
write_bytes = None
# Skip processes dead in the meantime
except psutil.NoSuchProcess:
self.warning('Process %s disappeared while scanning' % pid)
if got_denied and not ignore_denied_access:
self.warning('The Datadog Agent was denied access '
'when trying to get the number of file descriptors')
# Memory values are in Byte
return (thr, cpu, rss, vms, real, open_file_descriptors, read_count,
write_count, read_bytes, write_bytes, voluntary_ctx_switches,
involuntary_ctx_switches)
def get_process_metrics(self, pids, cpu_check_interval, ignore_denied_access=True):
# initialize process metrics
# process metrics available for all versions of psutil
rss = 0
vms = 0
cpu = 0
thr = 0
voluntary_ctx_switches = 0
involuntary_ctx_switches = 0
# process metrics available for psutil versions 0.6.0 and later
if Platform.is_win32() or Platform.is_solaris():
real = None
else:
real = 0
if Platform.is_unix():
open_file_descriptors = 0
else:
open_file_descriptors = None
# process I/O counters (agent might not have permission to access)
read_count = 0
write_count = 0
read_bytes = 0
write_bytes = 0
got_denied = False
for pid in set(pids):
try:
p = psutil.Process(pid)
try:
if real is not None:
mem = p.memory_info_ex()
real += mem.rss - mem.shared
else:
mem = p.memory_info()
if Platform.is_unix():
ctx_switches = p.num_ctx_switches()
voluntary_ctx_switches += ctx_switches.voluntary
involuntary_ctx_switches += ctx_switches.involuntary
rss += mem.rss
vms += mem.vms
thr += p.num_threads()
cpu += p.cpu_percent(cpu_check_interval)
if open_file_descriptors is not None:
open_file_descriptors += p.num_fds()
except NotImplementedError:
# Handle old Kernels which don't provide this info.
voluntary_ctx_switches = None
involuntary_ctx_switches = None
except AttributeError:
self.log.debug("process attribute not supported on this platform")
except psutil.AccessDenied:
got_denied = True
# user agent might not have permission to call io_counters()
# user agent might have access to io counters for some processes and not others
if read_count is not None:
try:
io_counters = p.io_counters()
read_count += io_counters.read_count
write_count += io_counters.write_count
read_bytes += io_counters.read_bytes
write_bytes += io_counters.write_bytes
except AttributeError:
self.log.debug("process attribute not supported on this platform")
except psutil.AccessDenied:
log_func = self.log.debug if ignore_denied_access else self.log.info
log_func('dd-agent user does not have access \
to I/O counters for process %d: %s' % (pid, p.name()))
read_count = None
write_count = None
read_bytes = None
write_bytes = None
# Skip processes dead in the meantime
except psutil.NoSuchProcess:
self.warning('Process %s disappeared while scanning' % pid)
if got_denied and not ignore_denied_access:
self.warning("The Datadog Agent was denied access when trying to get the number of file descriptors")
#Memory values are in Byte
return (thr, cpu, rss, vms, real, open_file_descriptors,
read_count, write_count, read_bytes, write_bytes, voluntary_ctx_switches, involuntary_ctx_switches)
