Python VimClient.get_perf_manager_stats方法代码示例

# 需要导入模块: from host.hypervisor.esx.vim_client import VimClient [as 别名]
# 或者: from host.hypervisor.esx.vim_client.VimClient import get_perf_manager_stats [as 别名]
class VsiTestCase(unittest.TestCase):
    """
    Check hostd rescpu.actav1 value equals to vsi's cpuLoadHistory1MinInPct
    """
    def setUp(self):
        self.vim_client = VimClient()

    def tearDown(self):
        pass

    def test_hostd_rescpu_actav1_match_vsi_value(self):
        try:
            vsi = VsiWrapper()
        except:
            return

        cpu_load_history = vsi.get(
            "/sched/groups/0/stats"
            "/cpuStatsDir/cpuLoadHistory"
            "/cpuLoadHistory1MinInPct")
        vsi_cpu_load = cpu_load_history["avgActive"]

        # get average cpu load percentage in past 20 seconds
        # since hostd takes a sample in every 20 seconds
        # we use the min 20secs here to get the latest
        # CPU active average over 1 minute
        host_stats = copy.copy(self.vim_client.get_perf_manager_stats(20))
        rescpu_cpu_load = host_stats['rescpu.actav1'] / 100
        check_value = False

        # vsi gets the current cpu active average over 1 minute.
        # hostd gets the cpu active average over 1 minute 20 seconds ago.
        # Thus if there's a CPU active average boost during the
        # past 20 seconds, the value from hostd's CPU active average
        # value will be 20 seconds late which will have a large deviation.
        if (1 if vsi_cpu_load - 7 < 1 else vsi_cpu_load - 7) \
                <= rescpu_cpu_load \
                <= vsi_cpu_load + 7:
            check_value = True

        self.assertEqual(check_value, True)

# 需要导入模块: from host.hypervisor.esx.vim_client import VimClient [as 别名]
# 或者: from host.hypervisor.esx.vim_client.VimClient import get_perf_manager_stats [as 别名]
class EsxHypervisor(object):
    """Manage ESX Hypervisor."""

    def __init__(self, agent_config):
        self.logger = logging.getLogger(__name__)

        # If VimClient's housekeeping thread failed to update its own cache,
        # call errback to commit suicide. Watchdog will bring up the agent
        # again.
        errback = lambda: suicide()
        self.vim_client = VimClient(wait_timeout=agent_config.wait_timeout,
                                    errback=errback)
        atexit.register(lambda client: client.disconnect(), self.vim_client)

        self._uuid = self.vim_client.host_uuid
        self.set_memory_overcommit(agent_config.memory_overcommit)

        image_datastores = [ds["name"] for ds in agent_config.image_datastores]
        self.datastore_manager = EsxDatastoreManager(
            self, agent_config.datastores, agent_config.image_datastores)
        # datastore manager needs to update the cache when there is a change.
        self.vim_client.add_update_listener(self.datastore_manager)
        self.vm_manager = EsxVmManager(self.vim_client, self.datastore_manager)
        self.disk_manager = EsxDiskManager(self.vim_client,
                                           self.datastore_manager)
        self.image_manager = EsxImageManager(self.vim_client,
                                             self.datastore_manager)
        self.network_manager = EsxNetworkManager(self.vim_client,
                                                 agent_config.networks)
        self.system = EsxSystem(self.vim_client)
        self.image_manager.monitor_for_cleanup()
        self.image_transferer = HttpNfcTransferer(self.vim_client,
                                                  image_datastores)
        atexit.register(self.image_manager.cleanup)

    @property
    def uuid(self):
        return self._uuid

    @property
    def config(self):
        config = gen.hypervisor.esx.ttypes.EsxConfig()
        return TSerialization.serialize(config)

    def normalized_load(self):
        """ Return the maximum of the normalized memory/cpu loads"""
        memory = self.system.memory_info()
        memory_load = memory.used * 100 / memory.total

        # get average cpu load percentage in past 20 seconds
        # since hostd takes a sample in every 20 seconds
        # we use the min 20secs here to get the latest
        # CPU active average over 1 minute
        host_stats = copy.copy(self.vim_client.get_perf_manager_stats(20))

        cpu_load = host_stats['rescpu.actav1'] / 100

        return max(memory_load, cpu_load)

    def check_image(self, image_id, datastore_id):
        return self.image_manager.check_image(
            image_id, self.datastore_manager.datastore_name(datastore_id)
        )

    def acquire_vim_ticket(self):
        return self.vim_client.acquire_clone_ticket()

    def acquire_cgi_ticket(self, url, op):
        return self.vim_client.acquire_cgi_ticket(url, op)

    def add_update_listener(self, listener):
        self.vim_client.add_update_listener(listener)

    def remove_update_listener(self, listener):
        self.vim_client.remove_update_listener(listener)

    def transfer_image(self, source_image_id, source_datastore,
                       destination_image_id, destination_datastore,
                       host, port):
        return self.image_transferer.send_image_to_host(
            source_image_id, source_datastore,
            destination_image_id, destination_datastore, host, port)

    def receive_image(self, image_id, datastore, imported_vm_name):
        self.image_manager.receive_image(
            image_id, datastore, imported_vm_name)

    def set_memory_overcommit(self, memory_overcommit):
        # Enable/Disable large page support. If this host is removed
        # from the deployment, large page support will need to be
        # explicitly updated by the user.
        disable_large_pages = memory_overcommit > 1.0
        self.vim_client.set_large_page_support(disable=disable_large_pages)