overleaf/server-ce/config/crontab-history

*/20 * * * *  root  /overleaf/cron/project-history-periodic-flush.sh >> /var/log/overleaf/cron-project-history-periodic-flush.log 2>&1
30 * * * *    root  /overleaf/cron/project-history-retry-soft.sh >> /var/log/overleaf/project-history-retry-soft.log 2>&1
45 * * * *    root  /overleaf/cron/project-history-retry-hard.sh >> /var/log/overleaf/project-history-retry-hard.log 2>&1