#12484: Document that cmemcache is definetly not thread safe
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Reporter: anonymous | Owner: nobody
Status: new | Milestone:
Component: Cache system | Version: 1.1
Keywords: cmemcache | Stage: Unreviewed
Has_patch: 0 |
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Using the cmemcache in threaded environment will eventually lead to cache
failure.
{{{
[fa...@1262456081.210803] mcm_get_line():1547: memcache(4) protocol error:
no \r before \n
[fa...@1262456081.282046] mcm_get_line():1547: memcache(4) protocol error:
no \r before \n
[fa...@1262456081.282084] mcm_fetch_cmd():1159: memcache(4) protocol
error: protocol, expected a response
[fa...@1262456081.761118] mcm_get_line():1547: memcache(4) protocol error:
no \r before \n
}}}
Steps to reproduce:
1. /usr/sbin/ab -n 100 -c 2 http://example.com/my_cached_page
Maybe the solution is to use threading.local to store cmemcache objects.
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Ticket URL: <http://code.djangoproject.com/ticket/12484>
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