Commits on Nov 18, 2019

1. resolver: less debug …

   Observed lots of debug messages from resolver (and associated high CPU
   usage because of lots of logging) when debug logging is turned on. Here
   is some data from a real system:
   
   > $ journalctl -u docker --since="2019-10-21 21:00:00"  --until="2019-10-21 22:00:00"  | wc -l
   > 188621
   > $ journalctl -u docker --since="2019-10-21 21:00:00"  --until="2019-10-21 22:00:00"  | grep -E 'Name To resolve: |\[resolver\] ' | wc -l
   > 186319
   
   So, it was about 200000 lines logger for just one hour, and about 99%
   of that are from resolver. While this might be the peculiarity of
   a particular setup, the number of such messages still seem way too
   excessive.
   
   Remove the ones that are not errors. In case those are needed, one have
   to recompile this package with debug_log build tag.
   
   Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>

   

   kolyshkin committed Nov 18, 2019
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2. More logs cleanup …

   Use more `debugf` in places that look definitely like developer's debug
   which is most probably useless to an end user.
   
   Promote some debug errors that looks more like warnings to use Warnf
   rather than Debugf.
   
   Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>

   

   kolyshkin committed Nov 18, 2019
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