Since upgrading to mediawiki 1.35, we are getting spammed with "worthRefreshPopular(1604102439.6853, 60, 900, 1604104011.4142): p = 0.0012121212121212; refresh = N" in redis log.
Presumably this is from a config of something like?
$wgDebugLogGroups['redis'] = '/var/log/mediawiki/redis.log';
Or is it a different DebugLogGroup?
worthRefreshPopular comes from WANObjectCache, and is a debug warning
$this->logger->debug( "worthRefreshPopular($asOf, $ageNew, $timeTillRefresh, $now): " . "p = $chance; refresh = " . ( $decision ? 'Y' : 'N' ) );
Maybe you just want to tune the logging level you're sending to file...