Package: mysql-server-5.7 Version: 5.7.18-1 Severity: normal Dear Maintainer,
The logrotate config of mysql-server contains this test: if killall -q -s0 -umysql mysqld; then However killall unconditionally emits the output "sending signal 0 to procs". See this source line: 975 printf("sending signal %d to procs\n", sig_num); Because lograte is started from the cron.daily cronjob this extra output causes cron to send email to root. I believe this issue can be easily fixed by redirecting output to /dev/null like so: if killall -q -s0 -umysql mysqld >/dev/null; then Thanks, Arjan -- System Information: Debian Release: 9.0 APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.9.0-2-amd64 (SMP w/4 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8) Shell: /bin/sh linked to /bin/bash Init: systemd (via /run/systemd/system) Versions of packages mysql-server-5.7 depends on: ii adduser 3.115 ii bsdutils 1:2.29.2-1 ii debconf [debconf-2.0] 1.5.61 ii init-system-helpers 1.48 ii libatomic1 6.3.0-18 ii libc6 2.24-11 ii libevent-core-2.0-5 2.0.21-stable-3 ii libgcc1 1:6.3.0-18 ii liblz4-1 0.0~r131-2+b1 ii libmecab2 0.996-3.1 ii libstdc++6 7.1.0-5 ii lsb-base 9.20161125 ii mysql-client-5.7 5.7.18-1 ii mysql-common 5.8+1.0.2 ii mysql-server-core-5.7 5.7.18-1 ii passwd 1:4.4-4.1 ii perl 5.24.1-3 ii psmisc 23.0-1 ii zlib1g 1:1.2.8.dfsg-5 Versions of packages mysql-server-5.7 recommends: ii libhtml-template-perl 2.95-2 Versions of packages mysql-server-5.7 suggests: ii bsd-mailx [mailx] 8.1.2-0.20160123cvs-4 pn tinyca <none> -- debconf information: mysql-server/no_upgrade_when_using_ndb: mysql-server-5.7/nis_warning: mysql-server/password_mismatch: mysql-server-5.7/really_downgrade: false mysql-server-5.7/postrm_remove_databases: false mysql-server-5.7/start_on_boot: true