ironic-python-agent/ironic_python_agent/burnin.py

# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from ironic_lib import utils
from oslo_concurrency import processutils
from oslo_log import log

from ironic_python_agent import errors
from ironic_python_agent import hardware

LOG = log.getLogger(__name__)


def stress_ng_cpu(node):
    """Burn-in the CPU with stress-ng

    Run stress-ng on a configurable number of CPUs for
    a configurable amount of time. Without config use
    all CPUs and stress them for 24 hours.

    :param node: Ironic node object
    :raises: CommandExecutionError if the execution of stress-ng fails.
    """
    info = node.get('driver_info', {})
    cpu = info.get('agent_burnin_cpu_cpu', 0)
    timeout = info.get('agent_burnin_cpu_timeout', 86400)

    args = ('stress-ng', '--cpu', cpu, '--timeout', timeout,
            '--metrics-brief')
    LOG.debug('Burn-in stress_ng_cpu command: %s', args)

    try:
        _, err = utils.execute(*args)
        # stress-ng reports on stderr only
        LOG.info(err)
    except (processutils.ProcessExecutionError, OSError) as e:
        error_msg = ("stress-ng (cpu) failed with error %(err)s",
                     {'err': e})
        LOG.error(error_msg)
        raise errors.CommandExecutionError(error_msg)


def stress_ng_vm(node):
    """Burn-in the memory with the vm stressor in stress-ng

    Run stress-ng with a configurable number of workers on
    a configurable amount of the available memory for
    a configurable amount of time. Without config use
    as many workers as CPUs, 98% of the memory and stress
    it for 24 hours.

    :param node: Ironic node object
    :raises: CommandExecutionError if the execution of stress-ng fails.
    """
    info = node.get('driver_info', {})
    vm = info.get('agent_burnin_vm_vm', 0)
    vm_bytes = info.get('agent_burnin_vm_vm-bytes', '98%')
    timeout = info.get('agent_burnin_vm_timeout', 86400)

    args = ('stress-ng', '--vm', vm, '--vm-bytes', vm_bytes,
            '--timeout', timeout, '--metrics-brief')
    LOG.debug('Burn-in stress_ng_vm command: %s', args)

    try:
        _, err = utils.execute(*args)
        # stress-ng reports on stderr only
        LOG.info(err)
    except (processutils.ProcessExecutionError, OSError) as e:
        error_msg = ("stress-ng (vm) failed with error %(err)s",
                     {'err': e})
        LOG.error(error_msg)
        raise errors.CommandExecutionError(error_msg)


def fio_disk(node):
    """Burn-in the disks with fio

    Run an fio randrw job for a configurable number of iterations
    or a given amount of time.

    :param node: Ironic node object
    :raises: CommandExecutionError if the execution of fio fails.
    """
    info = node.get('driver_info', {})
    # 4 iterations, same as badblock's default
    loops = info.get('agent_burnin_fio_disk_loops', 4)
    runtime = info.get('agent_burnin_fio_disk_runtime', 0)

    args = ['fio', '--rw', 'readwrite', '--bs', '4k', '--direct', 1,
            '--ioengine', 'libaio', '--iodepth', '32', '--verify',
            'crc32c', '--verify_dump', 1, '--continue_on_error', 'verify',
            '--loops', loops, '--runtime', runtime, '--time_based']

    devices = hardware.list_all_block_devices()
    for device in devices:
        args.extend(['--name', device.name])

    LOG.debug('Burn-in fio disk command: %s', ' '.join(map(str, args)))

    try:
        out, _ = utils.execute(*args)
        # fio reports on stdout
        LOG.info(out)
    except (processutils.ProcessExecutionError, OSError) as e:
        error_msg = ("fio (disk) failed with error %(err)s",
                     {'err': e})
        LOG.error(error_msg)
        raise errors.CommandExecutionError(error_msg)