Changes:
* r3585: With downstream caching, don't touch `Cache-Control` headers.
* No longer require `Modify Caching Headers off`.
* Change from `modify_caching_headers` as a boolean to a three valued enum
`PreserveCachingHeaders`.
* r3596: Make tests less flaky.
* Changes WGET_DUMP to write to WGET_DIR instead of OUTDIR.
* r3597: Remove now-redundant system tests.
* Some system tests were moved into `automatic/system_test.sh` which means we
can remove our forks.
* r3598: Enable the shared memory metadata cache by default.
* The code change just worked and needed no changes, but it also added
substantial tests, which needed some porting.
* Deflake the `scrape stats` test by moving it before config reloading.
The keepalive tests were occasionally bumping up against
the 1s timeout we had set for curl, but a 1s 99.9% tail
latency is a little agressive. Drop it to 2s to make the
tests less flaky.
What we really need is a proper load testing setup, so
the keepalive test isn't doing double-duty.
I missed this when moving shared components to SystemRewriteDriverFactory;
this call used to be in NgxRewriteDriverFactory::RootInit. Without it we only
log VLOG(0), not VLOG(1) and VLOG(2) the way Apache does.
Fixes#518.
The pagespeed_connection needs a log to write to, but unfortunately
r->connection->log isn't guaranteed to still be around for the whole
lifetime of the pagespeed_connection. Use the log from the server
context instead.
Fixes issue #522.
No major changes that we need to be compatible with. r3508 tweaks
InPlaceResourceRecorder::DoneAndSetHeaders so that we can now make sure to
release it: the recorder is allocated in ps_in_place_check_header_filter and
released in ps_in_place_body_filter, but if there's an error in between it will
be leaked. We know ps_release_request_context will get run regardless because
it's set as a cleanup handler, so clean up the recorder there.
Fixes#527
This fixes a few valgrind errors on shutdown, plus a potential
issue when url_util.cc would lazily initialize in a thread-unsafe
manner. Also adds --leak-check=full to the suggested valgrind
command for the system tests.
Jeff Kaufman