Re: Individual bulk e-mails - performance question

Robert Cummings wrote: > On Sun, 2008-08-31 at 12:12 +0200, Per Jessen wrote: >> Robert Cummings wrote: >> >> >> That's easily taken care of. Instead of a cron-job, you could >> >> have a script running as a daemon, checking for emails to be sent >> >> every 5mins. >> > >> > That's the same as running a cron every 5 minutes except now you >> > also need to detect if your daemon dies :) On the plus side though, >> > you eliminate the overhead of starting up the script every 5 >> > minutes :) >> >> It is not the same as it will prevent multiple scripts running >> concurrently in case a batch of emails takes longer that 5 minutes. >> Checking if the daemon dies - I guess it's a matter of taste or >> paranoia, but I don't think it's necessary when the script is >> sufficiently simple: >> >> #!/bin/sh >> while true >> do >> <yourscript> >> sleep 300 >> done > > I accomplish the same with cron scripts by using locks with expiry. There are many ways to skin a cat. I also tend to use cron+locks to avoid multiple concurrent scripts, but for shorter intervals, I tend to use the daemon. /Per Jessen, Zürich