ironic_lock_error

2021-09-23 14:14:50.757 7 ERROR ironic.conductor.task_manager [req-1513067b-a147-434a-8fea-c6c1eb239fef - - - - -] Callable IPMIManagement.detect_vendor expected an exclusive lock, got a shared task for node adc8f591-8616-4ef0-92c7-814d5d674d28. Traceback:
  File "/usr/lib/python3.6/site-packages/eventlet/greenpool.py", line 88, in _spawn_n_impl
    func(*args, **kwargs)

  File "/usr/lib/python3.6/site-packages/futurist/_green.py", line 71, in __call__
    self.work.run()

  File "/usr/lib/python3.6/site-packages/futurist/_utils.py", line 52, in run
    result = self.fn(*self.args, **self.kwargs)

  File "/usr/lib/python3.6/site-packages/futurist/periodics.py", line 290, in run
    work()

  File "/usr/lib/python3.6/site-packages/futurist/periodics.py", line 64, in __call__
    return self.callback(*self.args, **self.kwargs)

  File "/usr/lib/python3.6/site-packages/ironic_lib/metrics.py", line 60, in wrapped
    result = f(*args, **kwargs)

  File "/usr/lib/python3.6/site-packages/futurist/periodics.py", line 178, in decorator
    return f(*args, **kwargs)

  File "/usr/lib/python3.6/site-packages/ironic/conductor/manager.py", line 1777, in _sync_power_states
    self._sync_power_state_nodes_task(context, nodes_queue)

  File "/usr/lib/python3.6/site-packages/ironic/conductor/manager.py", line 1836, in _sync_power_state_nodes_task
    task, self.power_state_sync_count[node_uuid])

  File "/usr/lib/python3.6/site-packages/ironic_lib/metrics.py", line 60, in wrapped
    result = f(*args, **kwargs)

  File "/usr/lib/python3.6/site-packages/ironic/conductor/manager.py", line 4144, in do_sync_power_state
    power_state = task.driver.power.get_power_state(task)

  File "/usr/lib/python3.6/site-packages/ironic_lib/metrics.py", line 60, in wrapped
    result = f(*args, **kwargs)

  File "/usr/lib/python3.6/site-packages/ironic/drivers/modules/ipmitool.py", line 941, in get_power_state
    vendor = task.driver.management.detect_vendor(task)

  File "/usr/lib/python3.6/site-packages/ironic/conductor/task_manager.py", line 148, in wrapper
    'tb': "\n".join(traceback.format_stack())})

2021-09-23 14:14:50.757 7 WARNING ironic.conductor.manager [req-1513067b-a147-434a-8fea-c6c1eb239fef - - - - -] During sync_power_state, could not get power state for node adc8f591-8616-4ef0-92c7-814d5d674d28, attempt 1 of 3. Error: An exclusive lock is required, but the current context has a shared lock..: ironic.common.exception.ExclusiveLockRequired: An exclusive lock is required, but the current context has a shared lo
ck.