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import agent_util import time import sys import platform import os import socket from agent_util import float try: import psutil except: psutil = None try: import distro except: distro = None def search_esxtop(headers, search_string): for idx, column in enumerate(headers): if search_string in column: return idx return None def get_cpu_metrics(cls): retcode, output = agent_util.execute_command("cat /proc/stat") cls.log.debug("cat /proc/stat output: %s" % str(output)) output = output.splitlines() stat_fields = ["user", "nice", "system", "idle", "iowait", "irq", "softirq", "steal", "guest", "guest_nice"] cpus = {} for line in output: if not line.startswith("cpu"): continue # python3 compatible lambda function if sys.version_info[0] == 3: parts = list(filter(lambda p: p, line.split(" "))) else: parts = filter(lambda p: p, line.split(" ")) core = parts[0] if core == "cpu": core = "Total" if len(parts) >= 11: user, nice, system, idle, iowait, irq, softirq, steal, guest, guest_nice = map(int, parts[1:11]) cpus[core] = { "user": user, "nice": nice, "system": system, "idle": idle, "iowait": iowait, "irq": irq, "softirq": softirq, "steal": steal, "guest": guest, "guest_nice": guest_nice } elif len(parts) > 8 and len(parts) < 11: user, nice, system, idle, iowait, irq, softirq = map(int, parts[1:8]) cpus[core] = { "user": user, "nice": nice, "system": system, "idle": idle, "iowait": iowait, "irq": irq, "softirq": softirq } return cpus class CPUUsagePlugin(agent_util.Plugin): textkey = "cpu_usage" label = "CPU" @classmethod def get_metadata(self, config): status = agent_util.SUPPORTED msg = None if 'aix' in sys.platform: status = agent_util.SUPPORTED data = {'load_average.1': {'label': '1 minute CPU load average', 'options': None, 'status': status, 'error_message': msg, 'unit': 'avg'}, 'load_average.5': {'label': '5 minute CPU load average', 'options': None, 'status': status, 'error_message': msg, 'unit': 'avg'}, 'load_average.15': {'label': '15 minute CPU load average', 'options': None, 'status': status, 'error_message': msg, 'unit': 'avg'}, "usage_percentage": {"label": "Usage percentage", "options": sorted(get_cpu_metrics(self).keys()), "status": status, "error_message": msg, "unit": "percent"}, "user_usage_percentage": {"label": "User usage percentage", "options": None, "status": status, "error_message": msg, "unit": "percent"}, "system_usage_percentage": {"label": "System usage percentage", "options": None, "status": status, "error_message": msg, "unit": "percent"}, "idle_usage_percentage": {"label": "Idle usage percentage", "options": None, "status": status, "error_message": msg, "unit": "percent"}, "iowait_usage_percentage": {"label": "I/O Wait usage percentage", "options": None, "status": status, "error_message": msg, "unit": "percent"}, "cpu_entitlement_percentage": {"label": "CPU entitlement percentage", "options": None, "status": status, "error_message": msg, "unit": "percent"}, } return data elif 'sunos' in sys.platform: status = agent_util.SUPPORTED data = {'load_average.1': {'label': '1 minute CPU load average', 'options': None, 'status': status, 'error_message': msg, 'unit': 'avg'}, 'load_average.5': {'label': '5 minute CPU load average', 'options': None, 'status': status, 'error_message': msg, 'unit': 'avg'}, 'load_average.15': {'label': '15 minute CPU load average', 'options': None, 'status': status, 'error_message': msg, 'unit': 'avg'}, "usage_percentage": {"label": "Usage percentage", "options": sorted(get_cpu_metrics(self).keys()), "status": status, "error_message": msg, "unit": "percent"}, "user_usage_percentage": {"label": "User usage percentage", "options": None, "status": status, "error_message": msg, "unit": "percent"}, "system_usage_percentage": {"label": "System usage percentage", "options": None, "status": status, "error_message": msg, "unit": "percent"}, "idle_usage_percentage": {"label": "Idle usage percentage", "options": None, "status": status, "error_message": msg, "unit": "percent"}, "iowait_usage_percentage": {"label": "I/O Wait usage percentage", "options": None, "status": status, "error_message": msg, "unit": "percent"}, } return data elif 'freebsd' in sys.platform or "darwin" in sys.platform: status = agent_util.SUPPORTED data = {'load_average.1': {'label': '1 minute CPU load average', 'options': None, 'status': status, 'error_message': msg, 'unit': 'avg'}, 'load_average.5': {'label': '5 minute CPU load average', 'options': None, 'status': status, 'error_message': msg, 'unit': 'avg'}, 'load_average.15': {'label': '15 minute CPU load average', 'options': None, 'status': status, 'error_message': msg, 'unit': 'avg'}, "usage_percentage": {"label": "Usage percentage", "options": ["Total"], "status": status, "error_message": msg, "unit": "percent"}, "user_usage_percentage": {"label": "User usage percentage", "options": None, "status": status, "error_message": msg, "unit": "percent"}, "system_usage_percentage": {"label": "System usage percentage", "options": None, "status": status, "error_message": msg, "unit": "percent"}, "idle_usage_percentage": {"label": "Idle usage percentage", "options": None, "status": status, "error_message": msg, "unit": "percent"}, } return data elif 'hp-ux' in sys.platform: status = agent_util.SUPPORTED metadata = {'load_average.1': {'label': '1 minute CPU load average', 'options': None, 'status': status, 'error_message': msg, 'unit': 'avg'}, 'load_average.5': {'label': '5 minute CPU load average', 'options': None, 'status': status, 'error_message': msg, 'unit': 'avg'}, 'load_average.15': {'label': '15 minute CPU load average', 'options': None, 'status': status, 'error_message': msg, 'unit': 'avg'}, "usage_percentage": {"label": "Total Usage percentage", "options": ['Total'], "status": status, "error_message": msg, "unit": "percent"}, "user_usage_percentage": {"label": "User usage percentage", "options": None, "status": status, "error_message": msg, "unit": "percent"}, "system_usage_percentage": {"label": "System usage percentage", "options": None, "status": status, "error_message": msg, "unit": "percent"}, "idle_usage_percentage": {"label": "Idle usage percentage", "options": None, "status": status, "error_message": msg, "unit": "percent"}, } return metadata elif 'vmware' in sys.platform: status = agent_util.SUPPORTED # here we're gathering the CPU cores that we can monitor and adding in a Total aggregation cpus = [] ret, out = agent_util.execute_command('esxcli hardware cpu list | grep "CPU:"') tmp_cpus = [x for x in out.split('\n') if x != ''] for c in tmp_cpus: cpu = "Cpu (%s)" % c.split(':')[1] cpus.append(cpu) cpus.append("Total") data = {'load_average.1': {'label': '1 minute CPU load average', 'options': None, 'status': status, 'error_message': msg, 'unit': 'avg'}, 'load_average.5': {'label': '5 minute CPU load average', 'options': None, 'status': status, 'error_message': msg, 'unit': 'avg'}, 'load_average.15': {'label': '15 minute CPU load average', 'options': None, 'status': status, 'error_message': msg, 'unit': 'avg'}, "usage_percentage": {"label": "Usage percentage", "options": cpus, "status": status, "error_message": msg, "min_value": 0, "max_value": 100, "unit": "percent"}, "idle_usage_percentage": {"label": "Idle usage percentage", "options": cpus, "status": status, "error_message": msg, "min_value": 0, "max_value": 100, "unit": "percent"}, } return data else: if psutil is None: # Unable to import psutil self.log.info("Unable to import psutil library, no process metrics available") status = agent_util.UNSUPPORTED msg = "Unable to import psutil library, please install and rebuild metadata" # Core Linux if not agent_util.which("top", exc=False): self.log.info("top binary not found") status = agent_util.UNSUPPORTED msg = "top binary not found" try: distro_info = platform.dist() except AttributeError: if distro: distro_info = distro.linux_distribution() distro_info = '. '.join(distro_info) else: raise ValueError('Unable to grab distribution information. Please verify dependencies. Distro for Python3.8') if ('centos' in distro_info or 'redhat' in distro_info or 'oracle' in distro_info) and not agent_util.which('iostat', exc=False): self.log.info('Missing sysstat package.') status = agent_util.UNSUPPORTED msg = "iostat/sysstat binary not found. Please install" metadata = { "load_average.1": { "label": "1 minute CPU load average", "options": None, "status": status, "error_message": msg, "unit": "avg" }, "load_average.5": { "label": "5 minute CPU load average", "options": None, "status": status, "error_message": msg, "unit": "avg" }, "load_average.15": { "label": "15 minute CPU load average", "options": None, "status": status, "error_message": msg, "unit": "avg" }, "usage_percentage": { "label": "Usage percentage", "options": sorted(get_cpu_metrics(self).keys()), "status": status, "error_message": msg, "unit": "percent" }, "user_usage_percentage": { "label": "User usage percentage", "options": None, "status": status, "error_message": msg, "unit": "percent" }, "system_usage_percentage": { "label": "System usage percentage", "options": None, "status": status, "error_message": msg, "unit": "percent" }, "idle_usage_percentage": { "label": "Idle usage percentage", "options": None, "status": status, "error_message": msg, "unit": "percent" }, "iowait_usage_percentage": { "label": "I/O Wait usage percentage", "options": None, "status": status, "error_message": msg, "unit": "percent" }, "irq_usage_percentage": { "label": "Hardware IRQ usage percentage", "options": None, "status": status, "error_message": msg, "unit": "percent" }, "softirg_usage_percentage": { "label": "Software IRQ usage percentage", "options": None, "status": status, "error_message": msg, "unit": "percent" }, "stealtime_usage_percentage": { "label": "Steal Time usage percentage", "options": None, "status": status, "error_message": msg, "unit": "percent" }, "nice_usage_percentage": { "label": "Nice usage percentage", "options": None, "status": status, "error_message": msg, "unit": "percent" } } return metadata def check(self, textkey, data, config={}): # AIX-specific logic if 'aix' in sys.platform or 'darwin' in sys.platform or "freebsd" in sys.platform: if textkey.startswith('load_average'): retcode, load = agent_util.execute_command('uptime') fields = load.strip().split() if textkey == 'load_average.1': return float(fields[-3].strip(',')) elif textkey == 'load_average.5': return float(fields[-2].strip(',')) elif textkey == 'load_average.15': return float(fields[-1]) else: return None else: iostat = str(agent_util.which('iostat')) if 'aix' in sys.platform: retcode, output = agent_util.execute_command(iostat+' | grep -p tty') if "darwin" in sys.platform or "freebsd" in sys.platform: retcode, output = agent_util.execute_command(iostat+' -C -c 2 | tail -1') output = output.strip().split('\n') self.log.debug("iostat output: %s" % output) iostatline = False enti = False entc = 0 inuse = 0 user = 0 system = 0 idle = 0 iowait = 0 for line in output: if line.startswith('tty'): iostatline = True if 'entc' in line.split()[-1]: enti = True continue fields = line.split() if "darwin" in sys.platform: user = float(fields[-6]) system = float(fields[-5]) idle = float(fields[-4]) else: user = float(fields[2]) system = float(fields[3]) idle = float(fields[4]) iowait = float(fields[5]) if enti == True: entc = float(fields[-1]) inuse = 100. - idle if textkey == 'usage_percentage': return inuse elif textkey == 'user_usage_percentage': return user elif textkey == 'system_usage_percentage': return system elif textkey == 'idle_usage_percentage': return idle elif textkey == 'iowait_usage_percentage': return iowait elif textkey == 'cpu_entitlement_percentage' and enti == True: return entc # If we got here, we don't know how to gather this metric # for AIX - return None return None elif 'sunos' in sys.platform: if textkey.startswith('load_average'): retcode, load = agent_util.execute_command('uptime') fields = load.strip().split() if textkey == 'load_average.1': return float(fields[-3].strip(',')) elif textkey == 'load_average.5': return float(fields[-2].strip(',')) elif textkey == 'load_average.15': return float(fields[-1]) else: return None retcode, output = agent_util.execute_command('mpstat') output = output.split('\n') for line in output: if 'CPU' in line or not line: continue fields = line.split() if textkey == 'usage_percentage': return 100.-float(fields[-1]) elif textkey == 'user_usage_percentage': return float(fields[-4]) elif textkey == 'system_usage_percentage': return float(fields[-3]) elif textkey == 'idle_usage_percentage': return float(fields[-1]) elif textkey == 'iowait_usage_percentage': return float(fields[-2]) # If we got here we don't know how to gather this metric for Solaris return None elif 'vmware' in sys.platform: hostname = socket.gethostname() search_string = '\\\\%s\\Physical ' % hostname metric_value = None # actually gather the data to parse ret, out = agent_util.execute_command("esxtop -b -n 2 -d 2", cache_timeout=agent_util.DEFAULT_CACHE_TIMEOUT) out_list = out.split('\n') headers = out_list[0].replace('"', '').split(',') esxtop_data = [] for idx, val in enumerate(out_list[::1]): if not val or val == '': continue esxtop_data = out_list[idx].replace('"', '').split(',') # finish building search string if textkey.startswith('load_average'): search_string += 'Cpu Load\\Cpu Load (%s Minute Avg)' % textkey.split('.')[-1] elif data and (textkey == 'usage_percentage' or textkey == 'idle_usage_percentage'): if data == "Total": search_string += 'Cpu(_Total)' else: search_string += data search_string += '\\% Processor Time' # find index from headers and match to esxtop_data collected search_idx = search_esxtop(headers, search_string) if not search_idx: self.log.error("Unable to parse ESXTOP output for %s" % search_string) return None if textkey == 'idle_usage_percentage': metric_value = 100 - float(esxtop_data[search_idx]) else: metric_value = float(esxtop_data[search_idx]) return metric_value elif 'hp-ux' in sys.platform: # add terminal specification for hpux os.environ['TERM'] = "xterm" # !!! applicable to HP-UX 11.31 !!! ret, out = agent_util.execute_command("top -s2 -d2", env=os.environ) top = out.strip().splitlines() self.log.debug(top) metric_mapping = {} cpu_str = '' load_str = '' for line in top: if line.lower().startswith('avg'): cpu_str = line elif line.lower().startswith('load averages'): load_str = line cpu = cpu_str.replace('%', '').split() self.log.debug(cpu) metric_mapping['user_usage_percentage'] = float(cpu[2]) metric_mapping['system_usage_percentage'] = float(cpu[4]) metric_mapping['idle_usage_percentage'] = float(cpu[5]) metric_mapping['usage_percentage'] = 100. - metric_mapping['idle_usage_percentage'] load = load_str.strip().replace(',', '').split() self.log.debug(load) self.log.debug("'%s'" % load[4][:4]) metric_mapping['load_average.1'] = float(load[2]) metric_mapping['load_average.5'] = float(load[3]) metric_mapping['load_average.15'] = float(load[4][:4]) return float(metric_mapping.get(textkey, None)) else: if psutil is None: self.log.error("PSUTIL PACKAGE MISSING! UNABLE TO COLLECT CPU METRICS") return None # Default Linux/FreeBSD logic if textkey.startswith("load_average"): retcode, output = agent_util.execute_command("top -b -n 2 -d 0.5") if config.get("debug", False): self.log.debug('#####################################################') self.log.debug("CPU usage command 'top -b -n 2 -d 0.5:") self.log.debug(str(output)) self.log.debug('#####################################################') self.log.debug("top -b -n 2 -d 0.5: %s" % str(output)) output = output.splitlines() space_index = [0] for (var, item) in enumerate(output): if item == "": space_index.append(var) tmp_out = [] for line in output[space_index[2]:]: if line.strip(): tmp_out.append(line) output = tmp_out if textkey.startswith("load_average"): fields = output[0].split() if textkey == "load_average.1": index = -3 elif textkey == "load_average.5": index = -2 elif textkey == "load_average.15": index = -1 return float(fields[index].strip(",")) elif textkey.endswith('usage_percentage') and textkey != 'usage_percentage': num_cores = psutil.cpu_count() usage_textkey_map = { 'user_usage_percentage': 'user', 'system_usage_percentage': 'system', 'idle_usage_percentage': 'idle', 'iowait_usage_percentage': 'iowait', 'irq_usage_percentage': 'irq', 'softirg_usage_percentage': 'softirq', 'stealtime_usage_percentage': 'steal', 'nice_usage_percentage': 'nice', } key_name = usage_textkey_map.get(textkey, None) if key_name is None: self.log.error("Unknown resource textkey '%s'!" % textkey) return None c = self.get_cache_results('psutil', 'detailed_cpu_usage') self.log.debug("Retrieved cached value:\n%s" % c) cur_cpu = psutil.cpu_times() self.log.debug("Retrieved instant value:\n%s" % getattr(cur_cpu, key_name)) last_cpu = c and c[0][1] or None self.cache_result('psutil', 'detailed_cpu_usage', cur_cpu, replace=True) if last_cpu is None: return None use_diff = (getattr(cur_cpu, key_name) - getattr(last_cpu, key_name)) / num_cores if use_diff < 0: # The system was likely rebooted, and the cached # CPU stats are no longer relevant. # Cache new values and exit without reporting a value. return None elapsed = c[0][0] usage_time = (use_diff / elapsed) * 100. return usage_time elif textkey == 'usage_percentage' and data.lower() == 'total': num_cores = psutil.cpu_count() c = self.get_cache_results('psutil', 'total_cpu_usage') self.log.debug("Retrieved cached value:\n%s" % c) cur_cpu = psutil.cpu_times() self.log.debug("Retrieved instant value:\n%s" % cur_cpu.idle) last_cpu = c and c[0][1] or None self.cache_result('psutil', 'total_cpu_usage', cur_cpu, replace=True) if last_cpu is None: return None idle_diff = (cur_cpu.idle - last_cpu.idle) / num_cores steal_diff = (cur_cpu.steal - last_cpu.steal) / num_cores if idle_diff < 0 or steal_diff < 0: # The system was likely rebooted, and the cached # CPU stats are no longer relevant. # Cache new values and exit without reporting a value. return None use_diff = idle_diff + steal_diff elapsed = c[0][0] usage_time = 100 - ((use_diff / elapsed) * 100.) return usage_time elif textkey == 'usage_percentage' and data.lower() != 'total': self.log.debug("Checking for core %s" % data) num_cores = psutil.cpu_count() c = self.get_cache_results('psutil', '%s_cpu_usage' % data) self.log.debug("Retrieved cached value:\n%s" % c) try: cur_cpu = psutil.cpu_times(percpu=True)[int(str(data).strip('cpu'))] except IndexError: self.log.critical("UNABLE TO FIND CPU #%s" % data) return None self.log.debug("Retrieved instant value:\n%s" % cur_cpu.idle) last_cpu = c and c[0][1] or None self.cache_result('psutil', '%s_cpu_usage' % data, cur_cpu, replace=True) if last_cpu is None: return None idle_diff = (cur_cpu.idle - last_cpu.idle) steal_diff = (cur_cpu.steal - last_cpu.steal) if idle_diff < 0 or steal_diff < 0: # The system was likely rebooted, and the cached # CPU stats are no longer relevant. # Cache new values and exit without reporting a value. return None use_diff = idle_diff + steal_diff elapsed = c[0][0] usage_time = 100 - ((use_diff / elapsed) * 100.) if usage_time < 0: return 0 return usage_time return 0