I've been observing our production system memcache stats today and noticed
that the oldest object in the cache is only 7 minutes old. On our test
system, running the same code, the oldest object is over 4 hours old. On
our production system, I saw today at least 3 times where the oldest aged
: Tuesday, September 25, 2012 3:48 PM
To: google-appengine@googlegroups.com
Subject: [google-appengine] Memcache seems to be cleared periodically
I've been observing our production system memcache stats today and noticed
that the oldest object in the cache is only 7 minutes old. On our test
s
"you can do a set in one line and get in the next line and have the value
be not found."
Yes, but when cached data is cleared too often, and too soon, it defeats
the purpose of memcaching things.
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Expiration/expunging of memcache data is affected by a number of things.
How much you have in memcache, frequency of hits, how much else is going
on in google land (ie in that machines you happen to be running on etc).
I have only 33MB in cache (1058 items) a 94% hit rate and the oldest item
i
