Starting on the 21st the logsize of resourceloader.log grew massively with the uncompressed current log being bigger than 320 GBs and triggering Icinga diskspace alerts for the fluorine log host:
-rw-r--r-- 1 udp2log udp2log 29M Jul 18 06:25 resourceloader.log-20160718.gz
-rw-r--r-- 1 udp2log udp2log 29M Jul 19 06:24 resourceloader.log-20160719.gz
-rw-r--r-- 1 udp2log udp2log 32M Jul 20 06:25 resourceloader.log-20160720.gz
-rw-r--r-- 1 udp2log udp2log 887M Jul 21 06:25 resourceloader.log-20160721.gz
-rw-r--r-- 1 udp2log udp2log 8.1G Jul 22 06:25 resourceloader.log-20160722.gz
-rw-r--r-- 1 udp2log udp2log 14G Jul 23 06:25 resourceloader.log-20160723.gz
-rw-r--r-- 1 udp2log udp2log 13G Jul 24 06:25 resourceloader.log-20160724.gz
-rw-r--r-- 1 udp2log udp2log 13G Jul 25 06:25 resourceloader.log-20160725.gz
-rw-r--r-- 1 udp2log udp2log 15G Jul 26 06:25 resourceloader.log-20160726.gz
The log is full of log lines like https://phabricator.wikimedia.org/P3581, e.g.
2016-07-26 08:58:27 [V5cmMwpAIC0AAFcrsEsAAAAI] mw1175 enwiki 1.28.0-wmf.11 resourceloader DEBUG: Unexpected general module "user" in styles queue. {"module":"user"}
https://gerrit.wikimedia.org/r/#/c/301336/ lowered the log level for the resourceloader to "info" as an interim measure.