嘗試在SPickle中使用堆棧python(2.7.2)將測試方法通過celery發送到不同機器上執行。我希望測試方法(代碼)包含在pickle中,而不是強制存在於正在執行的機器python路徑中。是否可以在不使用RPC的情況下使用SPickle來序列化tasklet代碼(而不僅僅是exec狀態)?
去過引用下面介紹: https://ep2012.europython.eu/conference/talks/advanced-pickling-with-stackless-python-and-spickle
試圖用在檢查點設置滑動11所示的技術的RPC示例似乎右假設我們正在使用芹菜並不:
客戶機代碼:
from stackless import run, schedule, tasklet
from sPickle import SPickleTools
def test_method():
print "hello from test method"
tasks = []
test_tasklet = tasklet(test_method)()
tasks.append(test_tasklet)
pt = SPickleTools(serializeableModules=['__test_method__'])
pickled_task = pt.dumps(tasks)
Server代碼:
pt = sPickle.SPickleTools()
unpickledTasks = pt.loads(pickled_task)
個
結果:
[2012-03-09 14:24:59,104: ERROR/MainProcess] Task
celery_tasks.test_exec_method[8f462bd6-7952-4aa1-9adc-d84ee4a51ea6] raised exception:
AttributeError("'module'
object has no attribute 'test_method'",)
Traceback (most recent call last):
File "c:\Python27\lib\site-packages\celery\execute\trace.py", line 153, in trace_task
R = retval = task(*args, **kwargs)
File "c:\Python27\celery_tasks.py", line 16, in test_exec_method
unpickledTasks = pt.loads(pickled_task)
File "c:\Python27\lib\site-packages\sPickle\_sPickle.py", line 946, in loads
return unpickler.load()
AttributeError: 'module' object has no attribute 'test_method'
對我在做什麼不正確或者如果這甚至有可能有什麼建議?
在celeryd中做動態模塊加載的替代建議也是好的(作爲使用sPickle的替代方案)。我已經嘗試這樣做:
py_mod = imp.load_source(module_name,'some script path')
sys.modules.setdefault(module_name,py_mod)
但動態加載模塊似乎並不通過不同的調用celeryd,即不同的遠程調用持續。
您是否同意sPickle目前沒有內置的模塊依賴關係和在遠程機器上動態加載?我相信當我評估這一點時,我希望sPickle能夠做動態模塊依賴捆綁和沙盒, http://stackoverflow.com/questions/10099326/how-to-do-an-embedded-python-module-for-remote-sandbox-execution。如果你同意,會給你檢查。 – 2012-06-25 19:37:12