def _get_mac_addresses(node):
"""Get mac addresses of the node.
:param node: node object.
:raises: SNMPFailure if SNMP operation failed.
:returns: a list of mac addresses.
"""
d_info = irmc_common.parse_driver_info(node)
snmp_client = snmp.SNMPClient(d_info['irmc_address'],
d_info['irmc_snmp_port'],
d_info['irmc_snmp_version'],
d_info['irmc_snmp_community'],
d_info['irmc_snmp_security'])
node_classes = snmp_client.get_next(NODE_CLASS_OID)
mac_addresses = snmp_client.get_next(MAC_ADDRESS_OID)
return [
a for c, a in zip(node_classes, mac_addresses)
if c == NODE_CLASS_OID_VALUE['primary']
]
def _wait_power_state(task, target_state, timeout=None):
"""Wait for having changed to the target power state.
:param task: A TaskManager instance containing the node to act on.
:raises: IRMCOperationError if the target state acknowledge failed.
:raises: SNMPFailure if SNMP request failed.
"""
node = task.node
d_info = irmc_common.parse_driver_info(node)
snmp_client = snmp.SNMPClient(d_info['irmc_address'],
d_info['irmc_snmp_port'],
d_info['irmc_snmp_version'],
d_info['irmc_snmp_community'],
d_info['irmc_snmp_security'])
interval = CONF.irmc.snmp_polling_interval
retry_timeout_soft = timeout or CONF.conductor.soft_power_off_timeout
max_retry = int(retry_timeout_soft / interval)
def _wait(mutable):
mutable['boot_status_value'] = snmp_client.get(BOOT_STATUS_OID)
LOG.debug(
"iRMC SNMP agent of %(node_id)s returned "
"boot status value %(bootstatus)s on attempt %(times)s.", {
'node_id': node.uuid,
'bootstatus': BOOT_STATUS[mutable['boot_status_value']],
'times': mutable['times']
})
if _is_expected_power_state(target_state,
mutable['boot_status_value']):
mutable['state'] = target_state
raise loopingcall.LoopingCallDone()
mutable['times'] += 1
if mutable['times'] > max_retry:
mutable['state'] = states.ERROR
raise loopingcall.LoopingCallDone()
store = {'state': None, 'times': 0, 'boot_status_value': None}
timer = loopingcall.FixedIntervalLoopingCall(_wait, store)
timer.start(interval=interval).wait()
if store['state'] == target_state:
# iRMC acknowledged the target state
node.last_error = None
node.power_state = (states.POWER_OFF if target_state
== states.SOFT_POWER_OFF else states.POWER_ON)
node.target_power_state = states.NOSTATE
node.save()
LOG.info(
'iRMC successfully set node %(node_id)s '
'power state to %(bootstatus)s.', {
'node_id': node.uuid,
'bootstatus': BOOT_STATUS[store['boot_status_value']]
})
else:
# iRMC failed to acknowledge the target state
last_error = (_('iRMC returned unexpected boot status value %s') %
BOOT_STATUS[store['boot_status_value']])
node.last_error = last_error
node.power_state = states.ERROR
node.target_power_state = states.NOSTATE
node.save()
LOG.error(
'iRMC failed to acknowledge the target state for node '
'%(node_id)s. Error: %(last_error)s', {
'node_id': node.uuid,
'last_error': last_error
})
error = _('unexpected boot status value')
raise exception.IRMCOperationError(operation=target_state, error=error)