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Þ'¯°ÌME[YéïĵÂCå½ Ué©Áû'Ê9%eÔðNU”ë‘ÌsD3/®+UI˜9h.WC”빓$#:pz:YÓ ¿xž* ³$Í +$kñAŠ‹†¢ Uê>¸)_š¬÷©ßAÂÔb9ÇU ¯¾á•9¯ÏÏ÷O÷¼¼Fähal1‰3Ì[Ïr•´UCksNÐ] R‘¸¥H+§Šé†c©vÖÞ0iÓ76s†î!§=ß ¼~Ô'°Ãmäoäš³ªøi1úÉ)³yV8 CLÄØÁ‘WYïi€H6ÖÑiámø^ÈY´°Ñ7¥Û*—Ñ©L«Qƒï—Ùrÿ ›£Ð*š¸ˆL©ˆ$ˆ ÷¾D§9È®«qbqC)–ˆïv´çñsÑVT­Ø, <àïºÀO«Jý·õ àfPìð .wFšir´þ’2_Y *Æ€x\« ì€9š@ Ž|F⇥ˆkZ@hÖÄ0t¿-<“‹qµ¾*ZL¤Ú)&BJpÓF5=$„at*Zš$’ÑtdûÝRI1 2Ž‰$€$I$#‰SÞ’Hë¬ï;Á$¡t$’`<(ñÇt)$‡Ð.Êf¢X’Kt=Éé$‚ˆªè¢oÝëòI%Rgcª÷ŠyI%¡‰ÿ !ñ)´õ $¤ Ô’IIGÿÙimport agent_util from sys import platform, exc_info import logging import re from agent_util import float class DevicePathManager: def __init__(self, execute_function=None): if not execute_function: self._execute_function = agent_util.execute_command else: self._execute_function = execute_function try: command = "lsblk --pairs" if "darwin" in platform: disk_util = agent_util.which("diskutil") command = "{} list".format(disk_util) self._output = self._execute_function(command) self._output = self._output[1].split("\n") except Exception: logging.exception("Error getting devices") self._output = [] def find_path(self, device): if "darwin" in platform: for line in self._output: if line.startswith("/"): mp = line.split(" ")[0] if mp[len("/dev/") :] == device: return mp return None else: for line in self._output: expression = r'^NAME="(%s)".*MOUNTPOINT="(.*)"$' % (device) match = re.match(expression, line) if match: matched_mountpoint = match.groups()[1] if matched_mountpoint == "": # Some devices don't show a mountpoint, in those # cases, return the same device. return device else: return matched_mountpoint class IOStatPlugin(agent_util.Plugin): textkey = "iostat" label = "IO" metrics_list = [ "rrqm/s", "wrqm/s", "r/s", "w/s", "svctm", "rkB/s", "wkB/s", "%w", "%b", "wait", "actv", "kr/s", "kw/s", "svc_t", "%util", ] metrics_labels = { "rrqm/s": "Read requests queued", "wrqm/s": "Write requests queued", "r/s": "Read requests", "w/s": "Write requests", "svctm": "Average I/O request service time", "%w": "% of time transactions are waiting", "%b": "Percent of time the disk is busy", "wait": "Average transactions waiting for service", "actv": "Average transactions being serviced", "kr/s": "Data read rate", "kw/s": "Data write rate", "svc_t": "Average response time", "%util": "% of I/O CPU time", } metrics_units = { "rrqm/s": "requests/second", "wrqm/s": "requests/second", "r/s": "requests/second", "w/s": "requests/second", "svctm": "ms", "%w": "percent", "%b": "percent", "wait": "transactions", "actv": "transactions", "kr/s": "KB/s", "kw/s": "KB/s", "svc_t": "Average response time", "%util": "% of I/O CPU time", } darwinMetricsMap = {"kbpt": "KB/t", "tps": "tps", "mbps": "MB/s"} @classmethod def get_metadata(self, config): status = agent_util.SUPPORTED msg = None iostat_bin = agent_util.which("iostat") if not iostat_bin: self.log.info("iostat not found") status = agent_util.MISCONFIGURED msg = "Install iostat." return {} self.log.debug("Starting IOStat") # get our devices to monitor devices = [] data = {} output = None header = [] options_schema = {"resource": "string", "mountpoint": "string"} device_path_manager = DevicePathManager() if "hp-ux" in platform: ret, out = agent_util.execute_command("%s | sed '/^loop/d' " % iostat_bin) lines = out.strip().splitlines() for line in lines: if line.startswith("device") or line == "" or not line: continue device = line.split()[0] mountpoint = device_path_manager.find_path(device) devices.append( { "resource": device, "mountpoint": mountpoint, } ) self.log.debug("Devices found: %s" % devices) metdata = { "bps": { "label": "kilobytes per second", "options": devices, "status": status, "error_message": msg, "unit": "kb", "options_schema": options_schema, }, "sps": { "label": "disk seeks per second", "options": devices, "status": status, "error_message": msg, "unit": "", "options_schema": options_schema, }, } return metdata elif "darwin" in platform: ret, out = agent_util.execute_command("%s -d" % iostat_bin) if 0 != ret: status = agent_util.MISCONFIGURED msg = "iostat failure code {}".format(ret) else: lines = out.strip().splitlines() devs = lines[0].strip().split() for device in devs: mp = device_path_manager.find_path(device) if mp: devices.append({"resource": device, "mountpoint": mp}) else: status = agent_util.MISCONFIGURED msg = "Could not map device" break metadata = { "kbpt": { "label": "Kilobytes per transfer", "options": devices, "status": status, "error_msg": msg, "unit": "KB/s", "options_schema": options_schema, }, "tps": { "label": "Transfers per second", "options": devices, "status": status, "error_msg": msg, "unit": "transfers/s", "options_schema": options_schema, }, "mbps": { "label": "Megabytes per second", "options": devices, "status": status, "error_msg": msg, "unit": "MB/s", "options_schema": options_schema, }, } return metadata else: ret_code, output = agent_util.execute_command( "%s -dx | sed '/^loop/d' " % iostat_bin ) output = output.strip().splitlines() self.log.debug("#####################################################") self.log.debug("IO stats command '%s -dx' output:" % iostat_bin) self.log.debug(str(output)) self.log.debug("#####################################################") for line in reversed(output): if line.lower().startswith("device"): header = line.split() break fields = line.strip().split() dev = fields[0] if dev.lower().startswith("dm-"): continue mountpoint = device_path_manager.find_path(dev) devices.append({"resource": dev, "mountpoint": mountpoint}) self.log.debug("Devices: %s" % str(devices)) # no devices? no resources to monitor then if not devices: status = agent_util.MISCONFIGURED msg = "No devices found from iostat." for metric in header: self.log.debug("###########\nMetric: %s" % str(metric)) if metric in self.metrics_list: self.log.debug( "metric %s has the index value of %s" % (str(metric), str(header.index(metric))) ) data[str(metric)] = { "label": self.metrics_labels.get(str(metric), str(metric)), "options": devices, "options_schema": options_schema, "status": status, "error_message": msg, } if str(metric) in self.metrics_units: data[str(metric)]["unit"] = self.metrics_units.get(str(metric)) return data def check(self, textkey, device, config): metrics_index = {} iostat_bin = agent_util.which("iostat") second_line = False header_line = 2 if "freebsd" in platform: header_line = 1 if "sunos" in platform: second_line = True ret, output = agent_util.execute_command( "%s -dx 1 2 | sed '/^loop/d'" % (iostat_bin), cache_timeout=agent_util.DEFAULT_CACHE_TIMEOUT, ) header = output.strip().splitlines()[1].split() elif "hp-ux" in platform: ret, out = agent_util.execute_command( "iostat 1 2 | sed '/^loop/d'", cache_timeout=agent_util.DEFAULT_CACHE_TIMEOUT, ) lines = out.strip().splitlines() previously_seen = False for line in lines: line = line.strip() if previously_seen is False and line.startswith(device): previously_seen = True self.log.debug("Found first instance of disk %s" % device) elif previously_seen is True and line.startswith(device): self.log.debug("Found second instance of disk %s" % device) self.log.debug(line) l = line.split() if textkey == "bps": return float(l[1]) elif textkey == "sps": return float(l[2]) else: return None elif "darwin" in platform: try: outputKey = self.darwinMetricsMap.get(textkey, None) if outputKey is None: raise Exception("Unrecognized textkey {}".format(textkey)) ret, output = agent_util.execute_command( "%s -d -c 2" % iostat_bin, cache_timeout=agent_util.DEFAULT_CACHE_TIMEOUT, ) if 0 != ret: raise Exception("iostat failure, error {}".format(ret)) metricsCount = len(self.darwinMetricsMap) lines = output.strip().split("\n") if 4 != len(lines): self.log.error("Unrecognized iostat output") self.log.error(output) raise Exception("Unrecognized iostat output") devices = lines[0].split() metrics = lines[1].split() metric_values = lines[3].split() devIndex = devices.index(device) si = devIndex * metricsCount ei = si + metricsCount deviceMetrics = metrics[si:ei] di = deviceMetrics.index(outputKey) return float(metric_values[si:ei][di]) except Exception: err = exc_info()[1] error = str(err) self.log.error( "Collection error {}, {}: {}".format(device, textkey, error) ) return None else: second_line = True cmd_to_run = "%s -dx 1 2 | sed '/^loop/d'" % (iostat_bin) ret, output = agent_util.execute_command( cmd_to_run, cache_timeout=agent_util.DEFAULT_CACHE_TIMEOUT ) if ret != 0: self.log.error("{} failed with status {}".format(cmd_to_run, ret)) return None header = output.strip().splitlines()[header_line].split() splitted_lines = output.strip().split("\n") full = list( filter(lambda x: re.match(r"^%s .*$" % (device), x), splitted_lines) ) if full: if second_line: full = full[1] else: full = full[0] else: self.log.error("Device %s could not be found in output!" % device) return None if not header: self.log.error("Device %s no longer exists!" % device) return None for metric in header: self.log.debug("###########\nMetric: %s" % str(metric)) if metric in self.metrics_list: metrics_index[str(metric)] = header.index(str(metric)) self.log.debug("#####################################################") self.log.debug( "IO stats command '%s -dx %s 1 2' output:" % (iostat_bin, device) ) self.log.debug(str(full)) self.log.debug("#####################################################") self.log.debug("iostat -dx output: %s" % str(output)) j = full.strip().split() if device in j[0]: return float(j[int(metrics_index[str(textkey.split(".")[-1])])]) return 0