tree 5869427b638702bc2b96eb23e647719d699ef347
parent b0203ae3e49a50d31f7fa97829bac4acb71c2192
author Sergey Kandaurov <pluknet@nginx.com> 1599668787 +0300
committer Sergey Kandaurov <pluknet@nginx.com> 1599668787 +0300

Cache: keep c->body_start when Vary changes (ticket #2029).

If the variant hash doesn't match one we used as a secondary cache key,
we switch back to the original key.  In this case, c->body_start was kept
updated from an existing cache node overwriting the new response value.
After file cache update, it led to discrepancy between a cache node and
cache file seen as critical errors "file cache .. has too long header".