Apache will log %D microseconds over 1 million for requests that take over a second, this change sync's that access log behavior since the formatting seems to be based on that. So a request that takes 1 second and 30 milliseconds will have 1000030 for this atom.
This pull request also adds a %L atom for decimal seconds for a quick human-readable latency number. In the above example it would output 1.000030 to the log.
"Limits the number of worker processes to 1" hasn't been true since
06a4dc6 (fix one error in gunicorn_paster, global conf was ignored,
2010-06-22), although it was true when the line was added in 3c7d532
(Large refactor of the documentation and website, 2010-05-22).
"changes some error handling that's sent to clients" hasn't been true
since feb86d3 (don't display the traceback in the HTTP response,
2013-09-27).
The only remaining actions that --debug had were disabling --preload
and hiding debug-level config logging. The former seems useless (just
disable --preload directly) and the latter at doesn't seem useful
enough for a new setting (just turn down --log-level). With this
commit, --preload always works and you always get debug-level config
logging.
I left a stub Debug entry in gunicorn.config, which we can leave in
place while folks convert any gunicorn scripts and configurations to
drop --debug. When the time comes, we can just remove that entry. I
also the boolean-config tests to use --preload, since that will still
be around after we remove the dummy Debug entry.
Fixes#700.
