TRACKER_USE_LOG_FILES=1 still sends messages to syslog
Gnome Tracker documentation at https://wiki.gnome.org/Projects/Tracker/Documentation/GettingStarted (and elsewhere) states that setting the environment variable TRACKER_USE_LOG_FILES stops log messages from going to syslog. But this is not true. And, with gnome tracker log level at debug, syslog can easily become large enough to cause a system crash.
Using gnome tracker 6.2 on ubuntu Xenial.
N.B. To reproduce this bug, it is important to determine whether or not the environment variable TRACKER_USE_LOG_FILES is actually set. The means by which tracker processes can start, and the environment therein, are varied. On a debian or similar system, one can verify if TRACKER_USE_LOG_FILES is set like so:
for i in $(pgrep -u <usrname> tracker)
do
printf "pid=${i}\n"
cat /proc/${i}/environ | grep --text TRACKER_USE_LOG_FILES
printf "\n\n"
done