logrotate (which you really ought to use if you can) happens to use rename() under the hood to move the primary logfile into rotation, which confuses programs a

logrotate (which you really ought to use if you can) happens to use rename() under the hood to move the primary logfile into rotation, which confuses programs already writing to it (they will now be writing to the rotated file, which is weird). frots was primarily made to solve that problem.