redis cache only works on the first process

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I have askbot running under uwsgi and multiple processes. When the first process starts, I get no warning about locmem and it seems redis is being used. After I click some pages, I do see the locmem warning showing up.

I do not have locmem in my config anymore, so I am wondering why it seems like the first process is using redis, and the rest are throwing this warning still.