_collect_metadata.py 文件源码

def collect_system_metadata(metadata):
    metadata['platform'] = platform.platform(True, False)
    if sys.platform.startswith('linux'):
        collect_linux_metadata(metadata)

    # on linux, load average over 1 minute
    for line in read_proc("loadavg"):
        fields = line.split()
        loadavg = fields[0]
        metadata['load_avg_1min'] = float(loadavg)

        if len(fields) >= 4 and '/' in fields[3]:
            runnable_threads = fields[3].split('/', 1)[0]
            runnable_threads = int(runnable_threads)
            metadata['runnable_threads'] = runnable_threads

    if 'load_avg_1min' not in metadata and hasattr(os, 'getloadavg'):
        metadata['load_avg_1min'] = os.getloadavg()[0]

    # Hostname
    hostname = socket.gethostname()
    if hostname:
        metadata['hostname'] = hostname

    # Boot time
    boot_time = None
    for line in read_proc("stat"):
        if not line.startswith("btime "):
            continue
        boot_time = int(line[6:])
        break

    if boot_time is None and psutil:
        boot_time = psutil.boot_time()

    if boot_time is not None:
        btime = datetime.datetime.fromtimestamp(boot_time)
        metadata['boot_time'] = format_datetime(btime)
        metadata['uptime'] = time.time() - boot_time