Hello all,
Did anybody encounter the error above after upgrading to 1.4 and switching
to timezones? Some pages start 500 randomly, really randomly. I've tried
switching to pickle from cPickle. I've tried changing pickle protocols in
the memcached module. I've tried pylibmc. All the same. As a half measure
I'm forced to use locmem for now.
Couldn't google something useful on the topic apart from problems with lazy
objects with pickling.
Some info:
Django 1.4
pytz pytz==2012b
python-memcached==1.48
traceback:
File "/home/fuxter/data/alliance/main_site/utils.py", line 132, in
get_comment_by_id
cache.set(cache_key, comment)
File
"/home/fuxter/data/alliance/lib/python2.7/site-packages/django/core/cache/backends/memcached.py",
line 64, in set
self._cache.set(key, value, self._get_memcache_timeout(timeout))
File
"/home/fuxter/data/alliance/lib/python2.7/site-packages/memcache.py", line
566, in set
return self._set("set", key, val, time, min_compress_len)
File
"/home/fuxter/data/alliance/lib/python2.7/site-packages/memcache.py", line
803, in _set
return _unsafe_set()
File
"/home/fuxter/data/alliance/lib/python2.7/site-packages/memcache.py", line
781, in _unsafe_set
store_info = self._val_to_store_info(val, min_compress_len)
File
"/home/fuxter/data/alliance/lib/python2.7/site-packages/memcache.py", line
752, in _val_to_store_info
pickler.dump(val)
File "/usr/local/lib/python2.7/pickle.py", line 224, in dump
self.save(obj)
File "/usr/local/lib/python2.7/pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "/usr/local/lib/python2.7/pickle.py", line 649, in save_dict
self._batch_setitems(obj.iteritems())
File "/usr/local/lib/python2.7/pickle.py", line 681, in _batch_setitems
save(v)
File "/usr/local/lib/python2.7/pickle.py", line 331, in save
self.save_reduce(obj=obj, *rv)
File "/usr/local/lib/python2.7/pickle.py", line 401, in save_reduce
save(args)
File "/usr/local/lib/python2.7/pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "/usr/local/lib/python2.7/pickle.py", line 548, in save_tuple
save(element)
File "/usr/local/lib/python2.7/pickle.py", line 331, in save
self.save_reduce(obj=obj, *rv)
File "/usr/local/lib/python2.7/pickle.py", line 400, in save_reduce
save(func)
File "/usr/local/lib/python2.7/pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "/usr/local/lib/python2.7/pickle.py", line 753, in save_global
(obj, module, name))
PicklingError: Can't pickle <function _UTC at 0x8073549b0>: it's not the
same object as pytz._UTC
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