logrotate not able to truncate catalina.out - actual answer

This is related to https://unix.stackexchange.com/questions/499053/logrotate-not-able-to-truncate-catalina-out which is incorrectly closed as a duplicate, even though the duplicate question describes a subtly different issue with a very different solution. Question (abbreviated to the relevant parts for brevity): With the following logrotate configuration, why does the log rotate, but catalina.out does not get truncated? (This is different from the behavior in the question linked as a duplicate, where rotating did not happen at all). /log/apache-tomcat/catalina.out{ copytruncate daily size 256M rotate 8 missingok maxage 7 } logrotate -v verifies that copying the log file, compressing and truncating all are happening.