def _wait_for_cancellation(stack, wait=5):
# give enough time to wait till cancel is completed
retries = CANCEL_RETRIES
while retries > 0:
retries -= 1
eventlet.sleep(wait)
engines = db_api.engine_get_all_locked_by_stack(
stack.context, stack.id)
if not engines:
return True
return False
def _wait_for_cancellation(stack, wait=5):
# give enough time to wait till cancel is completed
retries = CANCEL_RETRIES
while retries > 0:
retries -= 1
eventlet.sleep(wait)
engines = db_api.engine_get_all_locked_by_stack(
stack.context, stack.id)
if not engines:
return True
return False
def _cancel_workers(stack, tgm, local_engine_id, rpc_client):
engines = db_api.engine_get_all_locked_by_stack(stack.context, stack.id)
if not engines:
return True
# cancel workers running locally
if local_engine_id in engines:
_cancel_check_resource(stack.id, local_engine_id, tgm)
engines.remove(local_engine_id)
# cancel workers on remote engines
for engine_id in engines:
rpc_client.cancel_check_resource(stack.context, stack.id, engine_id)
return _wait_for_cancellation(stack)
def _cancel_workers(stack, tgm, local_engine_id, rpc_client):
engines = db_api.engine_get_all_locked_by_stack(stack.context, stack.id)
if not engines:
return True
# cancel workers running locally
if local_engine_id in engines:
_cancel_check_resource(stack.id, local_engine_id, tgm)
engines.remove(local_engine_id)
# cancel workers on remote engines
for engine_id in engines:
rpc_client.cancel_check_resource(stack.context, stack.id, engine_id)
return _wait_for_cancellation(stack)
