Package: smokeping Version: 2.7.3-2 Severity: normal Dear Maintainer,
I've been running a few small and medium sized smokeping installations on Debian for a decade. It's been a great tool diagnosing network outages. Upon upgrading from stretch to buster (2.6.11-3 -> 2.7.3-2), hundreds of alert emails begun firing every poll. All the Alerts are configured with "edgetrigger = yes". For example, here's one, among thousands (notice "was cleared"): Subject: [SmokeAlert] full-loss was cleared on ipv6.sites.mikrovps-hu Alert "full-loss" was cleared for https://smokeping.unzane.com/smokeping/smokeping.cgi?target=ipv6.sites.mikrovps-hu Pattern ------- ==100%,==100%,==100% Data (old --> now) ------------------ loss: 100%, 100%, 100%, 100%, 100%, 100%, 100%, 100%, 100%, 100%, 100%, 100% rtt: U, U, U, U, U, U, U, U, U, U, U, U Comment ------- 100% packet loss Initially I discovered this was a problem with my FPing6 probe in combination with a change introduced in the fping package upgrade (explanation in fping NEWS.Debian.gz entry). However, after fixing my Probes, some Targets which really were down, continued to send emails each polling cycle, defying the edgetrigger setting, and incorrectly inverting "cleared" vs. "raised". There is an issue¹ filed upstream that explains the bug, wherein Tobias Oetiker (author) lackadaisically writes "edge trigger was not in the original design". The apparent abandonment of the edgetrigger feature was merely in support of a patch² which increased syslog message verbosity ("prevmatch" state, instead of being boolean, is now an incremented number, breaking edgetrigger, merely so some log out put can express how many times the alert matched). IMHO, I have too many Alerts defined (not just some-loss/full-loss, but also many flavors of rtt-50ms, etc.), with edgetrigger to reorganize and double the Alerts into separate ==0%,==0%,==100% + ==100%,==0%,==0% non-edgetrigger variants, than is worth the added syslog verbosity. Besides, the edgetrigger parameter is well documented in four different man pages. As well as the loss of raised/cleared verbiage in the email subjects which I have been accustomed to (and have sieve filters which color the mail green or red via IMAP flags). If the edgetriger feature can't be fixed, then it's probably be best to remove it from the documentation and have a NEWS.Debian entry warning of the breakage. ¹ https://github.com/oetiker/SmokePing/issues/183 ² https://github.com/oetiker/SmokePing/pull/52 -- System Information: Debian Release: 10.0 APT prefers stable APT policy: (701, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 4.19.0-5-cloud-amd64 (SMP w/2 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages smokeping depends on: ii adduser 3.118 ii debianutils 4.8.6.1 ii fping 4.2-1 ii libcgi-fast-perl 1:2.13-1 ii libconfig-grammar-perl 1.12-2 ii libdigest-hmac-perl 1.03+dfsg-2 ii libjs-cropper 1.2.2-1 ii libjs-prototype 1.7.1-3 ii libjs-scriptaculous 1.9.0-2 ii librrds-perl 1.7.1-2 ii libsnmp-session-perl 1.14~git20130523.186a005-4 ii liburi-perl 1.76-1 ii libwww-perl 6.36-2 ii lsb-base 10.2019051400 ii perl 5.28.1-6 ii postfix [mail-transport-agent] 3.4.5-1 ii ucf 3.0038+nmu1 Versions of packages smokeping recommends: ii apache2 [httpd-cgi] 2.4.38-3 ii dnsutils 1:9.11.5.P4+dfsg-5.1 ii echoping 6.0.2-10 ii libsocket6-perl 0.29-1+b1 Versions of packages smokeping suggests: ii curl 7.64.0-4 pn libauthen-radius-perl <none> ii libio-socket-ssl-perl 2.060-3 ii libnet-dns-perl 1.19-1 ii libnet-ldap-perl 1:0.6500+dfsg-1 ii libnet-telnet-perl 3.04-1 ii openssh-client 1:7.9p1-10 -- Configuration Files: /etc/smokeping/config.d/Alerts changed [not included] /etc/smokeping/config.d/Database changed [not included] /etc/smokeping/config.d/General changed [not included] /etc/smokeping/config.d/Probes changed [not included] /etc/smokeping/config.d/Slaves changed [not included] /etc/smokeping/config.d/Targets changed [not included] /etc/smokeping/smokeping_secrets [Errno 13] Permission denied: '/etc/smokeping/smokeping_secrets' -- no debconf information -- Gerald Turner <gtur...@unzane.com> Encrypted mail preferred! OpenPGP: 4096R / CA89 B27A 30FA 66C5 1B80 3858 EC94 2276 FDB8 716D
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