commit e764ffb5839f81df2273e98dd53fb8df861a323a
author Valentin Bartenev <vbart@nginx.com> Mon Dec 22 12:58:59 2014 +0300
committer Valentin Bartenev <vbart@nginx.com> Mon Dec 22 12:58:59 2014 +0300
tree 2b82b5787c5f0c78f71eafcb41c58eaa3b6c5871
parent a4b7b1067426383930a296b37fa9c68cc87df692

Upstream: mutually exclusive inheritance of "cache" and "store".

Currently, storing and caching mechanisms cannot work together, and a
configuration error is thrown when the proxy_store and proxy_cache
directives (as well as their friends) are configured on the same level.

But configurations like in the example below were allowed and could result
in critical errors in the error log:

    proxy_store on;

    location / {
        proxy_cache one;
    }

Only proxy_store worked in this case.

For more predictable and errorless behavior these directives now prevent
each other from being inherited from the previous level.