def enable():
# type: () -> None
global _profile
import cProfile
_profile = cProfile.Profile()
_profile.enable()
console.verbose("Enabled profiling.\n")
def walk(self,
snmp_config,
oid,
check_plugin_name=None,
table_base_oid=None,
context_name=None):
# type: (snmp_utils.SNMPHostConfig, str, Optional[str], Optional[str], Optional[str]) -> snmp_utils.SNMPRowInfo
protospec = self._snmp_proto_spec(snmp_config)
ipaddress = snmp_config.ipaddress
if snmp_config.is_ipv6_primary:
ipaddress = "[" + ipaddress + "]"
portspec = self._snmp_port_spec(snmp_config)
command = self._snmp_walk_command(snmp_config, context_name)
command += [
"-OQ", "-OU", "-On", "-Ot",
"%s%s%s" % (protospec, ipaddress, portspec), oid
]
console.vverbose("Running '%s'\n" % subprocess.list2cmdline(command))
snmp_process = None
exitstatus = None
rowinfo = [] # type: snmp_utils.SNMPRowInfo
try:
snmp_process = subprocess.Popen(command,
close_fds=True,
stdin=open(os.devnull),
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
encoding="utf-8")
rowinfo = self._get_rowinfo_from_snmp_process(snmp_process)
except MKTimeout:
# On timeout exception try to stop the process to prevent child process "leakage"
if snmp_process:
os.kill(snmp_process.pid, signal.SIGTERM)
snmp_process.wait()
raise
finally:
# The stdout and stderr pipe are not closed correctly on a MKTimeout
# Normally these pipes getting closed after p.communicate finishes
# Closing them a second time in a OK scenario won't hurt neither..
if snmp_process:
exitstatus = snmp_process.wait()
if snmp_process.stderr:
error = snmp_process.stderr.read()
snmp_process.stderr.close()
if snmp_process.stdout:
snmp_process.stdout.close()
if exitstatus:
console.verbose(tty.red + tty.bold + "ERROR: " + tty.normal +
"SNMP error: %s\n" % six.ensure_str(error).strip())
raise MKSNMPError(
"SNMP Error on %s: %s (Exit-Code: %d)" %
(ipaddress, six.ensure_str(error).strip(), exitstatus))
return rowinfo
def update_dns_cache():
# type: () -> UpdateDNSCacheResult
failed = []
ip_lookup_cache = _get_ip_lookup_cache()
ip_lookup_cache.persist_on_update = False
console.verbose("Cleaning up existing DNS cache...\n")
_clear_ip_lookup_cache(ip_lookup_cache)
console.verbose("Updating DNS cache...\n")
for hostname, family in _get_dns_cache_lookup_hosts():
console.verbose("%s (IPv%d)..." % (hostname, family))
try:
ip = lookup_ip_address(hostname, family)
console.verbose("%s\n" % ip)
except (MKTerminate, MKTimeout):
# We should be more specific with the exception handler below, then we
# could drop this special handling here
raise
except Exception as e:
failed.append(hostname)
console.verbose("lookup failed: %s\n" % e)
if cmk.utils.debug.enabled():
raise
continue
ip_lookup_cache.persist_on_update = True
ip_lookup_cache.save_persisted()
return len(ip_lookup_cache), failed
def enable():
# type: () -> None
global _profile
import cProfile # pylint: disable=import-outside-toplevel
_profile = cProfile.Profile()
_profile.enable()
console.verbose("Enabled profiling.\n")
def wrapped_check_func(hostname, *args, **kwargs):
# type: (HostName, Any, Any) -> int
host_config = config.get_config_cache().get_host_config(hostname)
exit_spec = host_config.exit_code_spec()
status, infotexts, long_infotexts, perfdata = 0, [], [], []
try:
status, infotexts, long_infotexts, perfdata = check_func(
hostname, *args, **kwargs)
except SystemExit:
raise
except MKTimeout:
if _in_keepalive_mode():
raise
else:
infotexts.append("Timed out")
status = max(status, cast(int, exit_spec.get("timeout",
2)))
except (MKAgentError, MKSNMPError, MKIPAddressLookupError) as e:
infotexts.append("%s" % e)
status = cast(int, exit_spec.get("connection", 2))
except MKGeneralException as e:
infotexts.append("%s" % e)
status = max(status, cast(int, exit_spec.get("exception", 3)))
except Exception:
if cmk.utils.debug.enabled():
raise
crash_output = cmk.base.crash_reporting.create_check_crash_dump(
hostname, check_plugin_name, None, False, None,
description, [])
infotexts.append(
crash_output.replace("Crash dump:\n", "Crash dump:\\n"))
status = max(status, cast(int, exit_spec.get("exception", 3)))
# Produce the service check result output
output_txt = "%s - %s" % (defines.short_service_state_name(status),
", ".join(infotexts))
if perfdata:
output_txt += " | %s" % " ".join(perfdata)
if long_infotexts:
output_txt = "%s\n%s" % (output_txt, "\n".join(long_infotexts))
output_txt += "\n"
if _in_keepalive_mode():
keepalive.add_keepalive_active_check_result(
hostname, output_txt)
console.verbose(output_txt.encode("utf-8"))
else:
console.output(output_txt.encode("utf-8"))
return status
def _execute_walks_for_dump(snmp_config, oids):
for oid in oids:
try:
console.verbose("Walk on \"%s\"..." % oid)
yield walk_for_export(snmp_config, oid)
except Exception as e:
console.error("Error: %s\n" % e)
if cmk.utils.debug.enabled():
raise
def _create_tarfile(self):
# type: () -> None
filepaths = self._get_filepaths()
console.verbose("Pack temporary files:\n")
with tarfile.open(name=self.tarfile_path, mode='w:gz') as tar:
for filepath in filepaths:
console.verbose(" '%s'\n" % _get_short_filepath(filepath))
tar.add(str(filepath), arcname=filepath.name)
def _execute_walks_for_dump(snmp_config, oids):
# type: (SNMPHostConfig, List[OID]) -> Iterable[SNMPRowInfo]
for oid in oids:
try:
console.verbose("Walk on \"%s\"..." % oid)
yield walk_for_export(snmp_config, oid)
except Exception as e:
console.error("Error: %s\n" % e)
if cmk.utils.debug.enabled():
raise
def cached_dns_lookup(hostname, family):
# type: (HostName, int) -> Optional[str]
cache = cmk.base.config_cache.get_dict("cached_dns_lookup")
cache_id = hostname, family
# Address has already been resolved in prior call to this function?
try:
return cache[cache_id]
except KeyError:
pass
ip_lookup_cache = _get_ip_lookup_cache()
cached_ip = ip_lookup_cache.get(cache_id)
if cached_ip and config.use_dns_cache:
cache[cache_id] = cached_ip
return cached_ip
host_config = config.get_config_cache().get_host_config(hostname)
if host_config.is_no_ip_host:
cache[cache_id] = None
return None
# Now do the actual DNS lookup
try:
ipa = socket.getaddrinfo(
hostname, None, family == 4 and socket.AF_INET
or socket.AF_INET6)[0][4][0]
# Update our cached address if that has changed or was missing
if ipa != cached_ip:
console.verbose("Updating IPv%d DNS cache for %s: %s\n" %
(family, hostname, ipa))
ip_lookup_cache.update_cache(cache_id, ipa)
cache[cache_id] = ipa # Update in-memory-cache
return ipa
except (MKTerminate, MKTimeout):
# We should be more specific with the exception handler below, then we
# could drop this special handling here
raise
except Exception as e:
# DNS failed. Use cached IP address if present, even if caching
# is disabled.
if cached_ip:
cache[cache_id] = cached_ip
return cached_ip
else:
cache[cache_id] = None
raise MKIPAddressLookupError(
"Failed to lookup IPv%d address of %s via DNS: %s" %
(family, hostname, e))
def _cleanup_dump_folder(self):
# type: () -> None
dumps = sorted(
[(dump.stat().st_mtime, dump) for dump in self.dump_folder.glob("*%s" % SUFFIX)],
key=lambda t: t[0])[:-self._keep_num_dumps]
console.verbose("Cleanup dump folder (remove old dumps, keep the last %s dumps):\n" %
self._keep_num_dumps)
for _mtime, filepath in dumps:
console.verbose(" '%s'\n" % _get_short_filepath(filepath))
self._remove_file(filepath)
def _output_check_result(servicedesc, state, infotext, perftexts):
# type: (ServiceName, ServiceState, ServiceDetails, List[str]) -> None
if _show_perfdata:
infotext_fmt = "%-56s"
p = ' (%s)' % (" ".join(perftexts))
else:
p = ''
infotext_fmt = "%s"
console.verbose("%-20s %s%s" + infotext_fmt + "%s%s\n", servicedesc.encode('utf-8'), tty.bold,
tty.states[state], make_utf8(infotext.split('\n')[0]), tty.normal, make_utf8(p))
def _get_cached_snmpwalk(hostname, fetchoid):
# type: (HostName, OID) -> Optional[SNMPRowInfo]
path = _snmpwalk_cache_path(hostname, fetchoid)
try:
console.vverbose(" Loading %s from walk cache %s\n" % (fetchoid, path))
return store.load_object_from_file(path)
except Exception:
if cmk.utils.debug.enabled():
raise
console.verbose(" Failed loading walk cache from %s. Continue without it.\n" % path)
return None
def _get_filepaths(self):
# type: () -> List[Path]
console.output("Collect diagnostics information:\n")
filepaths = []
for element in self.elements:
filepath = element.add_or_get_file(self.tmp_dump_folder)
if filepath is None:
console.verbose(" %s: No informations\n" % element.ident)
continue
console.output(" %s\n" % element.description)
filepaths.append(filepath)
return filepaths
def service_outside_check_period(config_cache, hostname, description):
# type: (config.ConfigCache, HostName, ServiceName) -> bool
period = config_cache.check_period_of_service(hostname, description)
if period is None:
return False
if cmk.base.core.check_timeperiod(period):
console.vverbose("Service %s: timeperiod %s is currently active.\n",
six.ensure_str(description), period)
return False
console.verbose("Skipping service %s: currently not in timeperiod %s.\n",
six.ensure_str(description), period)
return True
def _create_tarfile(self):
# type: () -> None
filepaths = self._get_filepaths()
console.verbose("Pack temporary files:\n")
tarfile_filepath = self.dump_folder.joinpath(str(
uuid.uuid4())).with_suffix(SUFFIX)
with tarfile.open(name=tarfile_filepath, mode='w:gz') as tar:
for filepath in filepaths:
console.verbose(" '%s'\n" %
self._get_short_filepath(filepath))
tar.add(str(filepath))
console.output("Created diagnostics dump:\n")
console.output(" '%s'\n" % self._get_short_filepath(tarfile_filepath))
def try_get_activation_lock():
global _restart_lock_fd
# In some bizarr cases (as cmk -RR) we need to avoid duplicate locking!
if config.restart_locking and _restart_lock_fd is None:
lock_file = cmk.utils.paths.default_config_dir + "/main.mk"
_restart_lock_fd = os.open(lock_file, os.O_RDONLY)
# Make sure that open file is not inherited to monitoring core!
fcntl.fcntl(_restart_lock_fd, fcntl.F_SETFD, fcntl.FD_CLOEXEC)
try:
console.verbose("Waiting for exclusive lock on %s.\n" % lock_file,
stream=sys.stderr)
fcntl.flock(
_restart_lock_fd, fcntl.LOCK_EX |
(config.restart_locking == "abort" and fcntl.LOCK_NB or 0))
except Exception:
return True
return False
def _run_inventory_export_hooks(host_config, inventory_tree):
import cmk.base.inventory_plugins as inventory_plugins
hooks = host_config.inventory_export_hooks
if not hooks:
return
console.step("Execute inventory export hooks")
for hookname, params in hooks:
console.verbose("Execute export hook: %s%s%s%s" %
(tty.blue, tty.bold, hookname, tty.normal))
try:
func = inventory_plugins.inv_export[hookname]["export_function"]
func(host_config.hostname, params, inventory_tree.get_raw_tree())
except Exception as e:
if cmk.utils.debug.enabled():
raise
raise MKGeneralException("Failed to execute export hook %s: %s" %
(hookname, e))
def precompile_hostchecks():
console.verbose("Creating precompiled host check config...\n")
config.PackedConfig().save()
if not os.path.exists(cmk.utils.paths.precompiled_hostchecks_dir):
os.makedirs(cmk.utils.paths.precompiled_hostchecks_dir)
config_cache = config.get_config_cache()
console.verbose("Precompiling host checks...\n")
for host in config_cache.all_active_hosts():
try:
_precompile_hostcheck(config_cache, host)
except Exception as e:
if cmk.utils.debug.enabled():
raise
console.error("Error precompiling checks for host %s: %s\n" %
(host, e))
sys.exit(5)
def _save_inventory_tree(hostname, inventory_tree):
# type: (HostName, StructuredDataTree) -> Optional[StructuredDataTree]
store.makedirs(cmk.utils.paths.inventory_output_dir)
filepath = cmk.utils.paths.inventory_output_dir + "/" + hostname
if inventory_tree.is_empty():
# Remove empty inventory files. Important for host inventory icon
if os.path.exists(filepath):
os.remove(filepath)
if os.path.exists(filepath + ".gz"):
os.remove(filepath + ".gz")
return None
old_tree = StructuredDataTree().load_from(filepath)
old_tree.normalize_nodes()
if old_tree.is_equal(inventory_tree):
console.verbose("Inventory was unchanged\n")
return None
if old_tree.is_empty():
console.verbose("New inventory tree\n")
else:
console.verbose("Inventory tree has changed\n")
old_time = os.stat(filepath).st_mtime
arcdir = "%s/%s" % (cmk.utils.paths.inventory_archive_dir, hostname)
store.makedirs(arcdir)
os.rename(filepath, arcdir + ("/%d" % old_time))
inventory_tree.save_to(cmk.utils.paths.inventory_output_dir, hostname)
return old_tree
def _do_inv_for_realhost(host_config, sources, multi_host_sections, hostname,
ipaddress, inventory_tree, status_data_tree):
# type: (config.HostConfig, data_sources.DataSources, Optional[data_sources.MultiHostSections], HostName, Optional[HostAddress], StructuredDataTree, StructuredDataTree) -> None
for source in sources.get_data_sources():
if isinstance(source, data_sources.SNMPDataSource):
source.set_on_error("raise")
source.set_do_snmp_scan(True)
source.disable_data_source_cache()
source.set_use_snmpwalk_cache(False)
source.set_ignore_check_interval(True)
source.set_check_plugin_name_filter(
_gather_snmp_check_plugin_names_inventory)
if multi_host_sections is not None:
# Status data inventory already provides filled multi_host_sections object.
# SNMP data source: If 'do_status_data_inv' is enabled there may be
# sections for inventory plugins which were not fetched yet.
source.enforce_check_plugin_names(None)
host_sections = multi_host_sections.add_or_get_host_sections(
hostname, ipaddress, deflt=SNMPHostSections())
source.set_fetched_check_plugin_names(
set(host_sections.sections))
host_sections_from_source = source.run()
host_sections.update(host_sections_from_source)
if multi_host_sections is None:
multi_host_sections = sources.get_host_sections()
console.step("Executing inventory plugins")
import cmk.base.inventory_plugins as inventory_plugins # pylint: disable=import-outside-toplevel
console.verbose("Plugins:")
for section_name, plugin in inventory_plugins.sorted_inventory_plugins():
section_content = multi_host_sections.get_section_content(
hostname, ipaddress, section_name, for_discovery=False)
if not section_content: # section not present (None or [])
# Note: this also excludes existing sections without info..
continue
if all([x in [[], {}, None] for x in section_content]):
# Inventory plugins which get parsed info from related
# check plugin may have more than one return value, eg
# parse function of oracle_tablespaces returns ({}, {})
continue
console.verbose(" %s%s%s%s" %
(tty.green, tty.bold, section_name, tty.normal))
# Inventory functions can optionally have a second argument: parameters.
# These are configured via rule sets (much like check parameters).
inv_function = plugin["inv_function"]
kwargs = cmk.utils.misc.make_kwargs_for(
inv_function,
inventory_tree=inventory_tree,
status_data_tree=status_data_tree)
non_kwargs = set(
cmk.utils.misc.getfuncargs(inv_function)) - set(kwargs)
args = [section_content]
if len(non_kwargs) == 2:
args += [host_config.inventory_parameters(section_name)]
inv_function(*args, **kwargs)
console.verbose("\n")
def get(self, snmp_config, oid, context_name=None):
# type: (SNMPHostConfig, OID, Optional[ContextName]) -> Optional[RawValue]
if oid.endswith(".*"):
oid_prefix = oid[:-2]
commandtype = "getnext"
else:
oid_prefix = oid
commandtype = "get"
protospec = self._snmp_proto_spec(snmp_config)
ipaddress = snmp_config.ipaddress
if snmp_config.is_ipv6_primary:
ipaddress = "[" + ipaddress + "]"
portspec = self._snmp_port_spec(snmp_config)
command = (
self._snmp_base_command(commandtype, snmp_config, context_name) + [
"-On", "-OQ", "-Oe", "-Ot",
"%s%s%s" % (protospec, ipaddress, portspec), oid_prefix
])
console.vverbose("Running '%s'\n" % subprocess.list2cmdline(command))
snmp_process = subprocess.Popen(
command,
close_fds=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
encoding="utf-8",
)
exitstatus = snmp_process.wait()
if snmp_process.stderr is None or snmp_process.stdout is None:
raise TypeError()
if exitstatus:
console.verbose(tty.red + tty.bold + "ERROR: " + tty.normal +
"SNMP error\n")
console.verbose(snmp_process.stderr.read() + "\n")
return None
line = snmp_process.stdout.readline().strip()
if not line:
console.verbose("Error in response to snmpget.\n")
return None
parts = line.split("=", 1)
if len(parts) != 2:
return None
item = parts[0]
value = parts[1].strip()
console.vverbose("SNMP answer: ==> [%s]\n" % value)
if value.startswith('No more variables') or \
value.startswith('End of MIB') or \
value.startswith('No Such Object available') or \
value.startswith('No Such Instance currently exists'):
return None
# In case of .*, check if prefix is the one we are looking for
if commandtype == "getnext" and not item.startswith(oid_prefix + "."):
return None
return strip_snmp_value(value)
def _create_dump_folders(self):
# type: () -> None
console.verbose("Create dump folders:\n")
self.dump_folder.mkdir(parents=True, exist_ok=True)
console.verbose(" '%s'\n" % _get_short_filepath(self.dump_folder))
self.tmp_dump_folder.mkdir(parents=True, exist_ok=True)
console.verbose(" '%s'\n" % _get_short_filepath(self.tmp_dump_folder))
def _cleanup_tmp_dump_folder(self):
# type: () -> None
console.verbose("Remove temporary files:\n")
for filepath in self.tmp_dump_folder.iterdir():
console.verbose(" '%s'\n" % _get_short_filepath(filepath))
self._remove_file(filepath)
console.verbose("Remove temporary dump folder:\n")
console.verbose(" '%s'\n" % _get_short_filepath(self.tmp_dump_folder))
try:
self.tmp_dump_folder.rmdir()
except OSError as e:
if e.errno != errno.ENOTEMPTY:
raise
def do_backup(tarname):
console.verbose("Creating backup file '%s'...\n", tarname)
tar = tarfile.open(tarname, "w:gz")
for name, path, canonical_name, descr, is_dir, in backup_paths():
absdir = os.path.abspath(path)
if os.path.exists(path):
if is_dir:
subtarname = name + ".tar"
subfile = StringIO.StringIO()
subtar = tarfile.open(mode="w", fileobj=subfile, dereference=True)
subtar.add(path, arcname=".")
subdata = subfile.getvalue()
else:
subtarname = canonical_name
subdata = open(absdir).read()
info = tarfile.TarInfo(subtarname)
info.mtime = time.time()
info.uid = 0
info.gid = 0
info.size = len(subdata)
info.mode = 0o644
info.type = tarfile.REGTYPE
info.name = subtarname
console.verbose(" Added %s (%s) with a size of %s\n", descr, absdir,
render.fmt_bytes(info.size))
tar.addfile(info, StringIO.StringIO(subdata))
tar.close()
console.verbose("Successfully created backup.\n")
def _get_filepaths(self):
# type: () -> List[Path]
console.verbose("Collect diagnostics files.\n")
filepaths = []
for element in self.elements:
filepath = element.add_or_get_file(self.tmp_dump_folder)
if filepath is None:
console.verbose(" %s: No informations\n" % element.ident)
continue
console.verbose(" '%s'\n" % self._get_short_filepath(filepath))
filepaths.append(filepath)
return filepaths
def _do_snmpwalk_on(snmp_config, options, filename):
# type: (SNMPHostConfig, SNMPWalkOptions, str) -> None
console.verbose("%s:\n" % snmp_config.hostname)
oids = oids_to_walk(options)
with Path(filename).open("w", encoding="utf-8") as out:
for rows in _execute_walks_for_dump(snmp_config, oids):
for oid, value in rows:
out.write(six.ensure_text("%s %s\n" % (oid, value)))
console.verbose("%d variables.\n" % len(rows))
console.verbose("Wrote fetched data to %s%s%s.\n" % (tty.bold, filename, tty.normal))
def _do_snmpwalk_on(snmp_config, options, filename):
console.verbose("%s:\n" % snmp_config.hostname)
oids = oids_to_walk(options)
with open(filename, "w") as out:
for rows in _execute_walks_for_dump(snmp_config, oids):
for oid, value in rows:
out.write("%s %s\n" % (oid, value))
console.verbose("%d variables.\n" % len(rows))
console.verbose("Wrote fetched data to %s%s%s.\n" %
(tty.bold, filename, tty.normal))
def get(self, snmp_config, oid, context_name=None):
if oid.endswith(".*"):
oid_prefix = oid[:-2]
commandtype = "getnext"
else:
oid_prefix = oid
commandtype = "get"
protospec = self._snmp_proto_spec(snmp_config)
ipaddress = snmp_config.ipaddress
if snmp_config.is_ipv6_primary:
ipaddress = "[" + ipaddress + "]"
portspec = self._snmp_port_spec(snmp_config)
command = self._snmp_base_command(commandtype, snmp_config, context_name) + \
[ "-On", "-OQ", "-Oe", "-Ot",
"%s%s%s" % (protospec, ipaddress, portspec),
oid_prefix ]
console.vverbose("Running '%s'\n" % subprocess.list2cmdline(command))
snmp_process = subprocess.Popen(command,
close_fds=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
exitstatus = snmp_process.wait()
if exitstatus:
console.verbose(tty.red + tty.bold + "ERROR: " + tty.normal +
"SNMP error\n")
console.verbose(snmp_process.stderr.read() + "\n")
return None
line = snmp_process.stdout.readline().strip()
if not line:
console.verbose("Error in response to snmpget.\n")
return None
item, value = line.split("=", 1)
value = value.strip()
console.vverbose("SNMP answer: ==> [%s]\n" % value)
if value.startswith('No more variables') or value.startswith('End of MIB') \
or value.startswith('No Such Object available') or value.startswith('No Such Instance currently exists'):
value = None
# In case of .*, check if prefix is the one we are looking for
if commandtype == "getnext" and not item.startswith(oid_prefix + "."):
value = None
# Strip quotes
if value and value.startswith('"') and value.endswith('"'):
value = value[1:-1]
return value
def do_check(hostname, ipaddress, only_check_plugin_names=None):
# type: (HostName, Optional[HostAddress], Optional[List[CheckPluginName]]) -> Tuple[int, List[ServiceDetails], List[ServiceAdditionalDetails], List[Text]]
cpu_tracking.start("busy")
console.verbose("Check_MK version %s\n", six.ensure_str(cmk.__version__))
config_cache = config.get_config_cache()
host_config = config_cache.get_host_config(hostname)
exit_spec = host_config.exit_code_spec()
status = 0 # type: ServiceState
infotexts = [] # type: List[ServiceDetails]
long_infotexts = [] # type: List[ServiceAdditionalDetails]
perfdata = [] # type: List[Text]
try:
# In case of keepalive we always have an ipaddress (can be 0.0.0.0 or :: when
# address is unknown). When called as non keepalive ipaddress may be None or
# is already an address (2nd argument)
if ipaddress is None and not host_config.is_cluster:
ipaddress = ip_lookup.lookup_ip_address(hostname)
item_state.load(hostname)
sources = data_sources.DataSources(hostname, ipaddress)
num_success, missing_sections = \
_do_all_checks_on_host(sources, host_config, ipaddress, only_check_plugin_names)
if _submit_to_core:
item_state.save(hostname)
for source in sources.get_data_sources():
source_state, source_output, source_perfdata = source.get_summary_result_for_checking(
)
if source_output != "":
status = max(status, source_state)
infotexts.append("[%s] %s" % (source.id(), source_output))
perfdata.extend(
[_convert_perf_data(p) for p in source_perfdata])
if missing_sections and num_success > 0:
missing_sections_status, missing_sections_infotext = \
_check_missing_sections(missing_sections, exit_spec)
status = max(status, missing_sections_status)
infotexts.append(missing_sections_infotext)
elif missing_sections:
infotexts.append("Got no information from host")
status = max(status, cast(int, exit_spec.get("empty_output", 2)))
cpu_tracking.end()
phase_times = cpu_tracking.get_times()
total_times = phase_times["TOTAL"]
run_time = total_times[4]
infotexts.append("execution time %.1f sec" % run_time)
if config.check_mk_perfdata_with_times:
perfdata += [
"execution_time=%.3f" % run_time,
"user_time=%.3f" % total_times[0],
"system_time=%.3f" % total_times[1],
"children_user_time=%.3f" % total_times[2],
"children_system_time=%.3f" % total_times[3],
]
for phase, times in phase_times.items():
if phase in ["agent", "snmp", "ds"]:
t = times[4] - sum(times[:4]) # real time - CPU time
perfdata.append("cmk_time_%s=%.3f" % (phase, t))
else:
perfdata.append("execution_time=%.3f" % run_time)
return status, infotexts, long_infotexts, perfdata
finally:
if _checkresult_file_fd is not None:
_close_checkresult_file()
# "ipaddress is not None": At least when working with a cluster host it seems the ipaddress
# may be None. This needs to be understood in detail and cleaned up. As the InlineSNMP
# stats feature is a very rarely used debugging feature, the analyzation and fix is
# postponed now.
if config.record_inline_snmp_stats \
and ipaddress is not None \
and host_config.snmp_config(ipaddress).is_inline_snmp_host:
inline_snmp.save_snmp_stats()
def execute_check(config_cache, multi_host_sections, hostname, ipaddress,
check_plugin_name, item, params, description):
# type: (config.ConfigCache, data_sources.MultiHostSections, HostName, Optional[HostAddress], CheckPluginName, Item, CheckParameters, ServiceName) -> Optional[bool]
# Make a bit of context information globally available, so that functions
# called by checks now this context
check_api_utils.set_service(check_plugin_name, description)
item_state.set_item_state_prefix(check_plugin_name, item)
# Skip checks that are not in their check period
period = config_cache.check_period_of_service(hostname, description)
if period is not None:
if not cmk.base.core.check_timeperiod(period):
console.verbose(
"Skipping service %s: currently not in timeperiod %s.\n",
six.ensure_str(description), period)
return None
console.vverbose("Service %s: timeperiod %s is currently active.\n",
six.ensure_str(description), period)
section_name = cmk.base.check_utils.section_name_of(check_plugin_name)
dont_submit = False
section_content = None
try:
# TODO: There is duplicate code with discovery._execute_discovery(). Find a common place!
try:
section_content = multi_host_sections.get_section_content(
hostname,
ipaddress,
section_name,
for_discovery=False,
service_description=description)
except MKParseFunctionError as e:
x = e.exc_info()
# re-raise the original exception to not destory the trace. This may raise a MKCounterWrapped
# exception which need to lead to a skipped check instead of a crash
# TODO CMK-3729, PEP-3109
new_exception = x[0](x[1])
new_exception.__traceback__ = x[2] # type: ignore[attr-defined]
raise new_exception
# TODO: Move this to a helper function
if section_content is None: # No data for this check type
return False
# In case of SNMP checks but missing agent response, skip this check.
# TODO: This feature predates the 'parse_function', and is not needed anymore.
# # Special checks which still need to be called even with empty data
# # may declare this.
if not section_content and cmk.base.check_utils.is_snmp_check(check_plugin_name) \
and not config.check_info[check_plugin_name]["handle_empty_info"]:
return False
check_function = config.check_info[check_plugin_name].get(
"check_function")
if check_function is None:
check_function = lambda item, params, section_content: (
3, 'UNKNOWN - Check not implemented')
# Call the actual check function
item_state.reset_wrapped_counters()
raw_result = check_function(item, determine_check_params(params),
section_content)
result = sanitize_check_result(
raw_result, cmk.base.check_utils.is_snmp_check(check_plugin_name))
item_state.raise_counter_wrap()
except item_state.MKCounterWrapped as e:
# handle check implementations that do not yet support the
# handling of wrapped counters via exception on their own.
# Do not submit any check result in that case:
console.verbose("%-20s PEND - Cannot compute check result: %s\n",
six.ensure_str(description), e)
dont_submit = True
except MKTimeout:
raise
except Exception as e:
if cmk.utils.debug.enabled():
raise
result = 3, cmk.base.crash_reporting.create_check_crash_dump(
hostname, check_plugin_name, item,
is_manual_check(hostname, check_plugin_name, item), params,
description, section_content), []
if not dont_submit:
# Now add information about the age of the data in the agent
# sections. This is in data_sources.g_agent_cache_info. For clusters we
# use the oldest of the timestamps, of course.
oldest_cached_at = None
largest_interval = None
def minn(a, b):
# type: (Optional[int], Optional[int]) -> Optional[int]
if a is None:
return b
if b is None:
return a
return min(a, b)
for host_sections in multi_host_sections.get_host_sections().values():
section_entries = host_sections.cache_info
if section_name in section_entries:
cached_at, cache_interval = section_entries[section_name]
oldest_cached_at = minn(oldest_cached_at, cached_at)
largest_interval = max(largest_interval, cache_interval)
_submit_check_result(hostname,
description,
result,
cached_at=oldest_cached_at,
cache_interval=largest_interval)
return True
