crashmailbatch Documentation

crashmailbatch is a supervisor “event listener”, intended to be subscribed to PROCESS_STATE and TICK_60 events. It monitors all processes running under a given supervisord instance.

Similar to crashmail, crashmailbatch sends email alerts when processes die unexpectedly. The difference is that all alerts generated within the configured time interval are batched together to avoid sending too many emails.

crashmailbatch is a “console script” installed when you install superlance. Although crashmailbatch is an executable program, it isn’t useful as a general-purpose script: it must be run as a supervisor event listener to do anything useful.

Command-Line Syntax

$ crashmailbatch --toEmail=<email address> --fromEmail=<email address> \
        [--interval=<batch interval in minutes>] [--subject=<email subject>] \
                [--tickEvent=<event name>]
-t <destination email>, --toEmail=<destination email>

Specify an email address to which crash notification messages are sent.

-f <source email>, --fromEmail=<source email>

Specify an email address from which crash notification messages are sent.

-i <interval>, --interval=<interval>

Specify the time interval in minutes to use for batching notifcations. Defaults to 1.0 minute.

-s <email subject>, --subject=<email subject>

Override the email subject line. Defaults to “Crash alert from supervisord”

-e <event name>, --tickEvent=<event name>

Override the TICK event name. Defaults to “TICK_60”

Configuring crashmailbatch Into the Supervisor Config

An [eventlistener:x] section must be placed in supervisord.conf in order for crashmailbatch to do its work. See the “Events” chapter in the Supervisor manual for more information about event listeners.

The following example assumes that crashmailbatch is on your system PATH.

[eventlistener:crashmailbatch]
command=crashmailbatch --toEmail="alertme@fubar.com" --fromEmail="supervisord@fubar.com"
events=PROCESS_STATE,TICK_60