[rescue] Linux wet paint, was Re: Spark10 CPU question (must fix - SPARC damnit :-) )

Phil Stracchino phils at caerllewys.net
Fri Dec 23 11:48:37 CST 2016

On 12/23/16 11:37, Nick B wrote:
> Every time I read that list of "Debunked" "myths" I'm more convinced that
> systemd should be dumped at the first available chance.  It reminds me of
> nothing more than DJB's twisted nightmare of an ecosystem, where debugging
> a simple problem will take all week.  My last fight was systemd and limits
> - for anyone who faces this in the future the way you modify limits for
> systemd is not /etc/security/limits.conf like on every other linux system,
> and is instead /etc/systemd/system/servicename.service.d/limits.conf, with
> poorly documented syntax.  Good luck figuring that out on your own.
> Nick

I ran into this on a customer server.  It took one of our Unix engineers
half a day to figure out that systemd was overriding the open files
limit for mysqld.  Because why on earth would mysqld ever need to open
more than five thousand file handles at once?

  Phil Stracchino
  Babylon Communications
  phils at caerllewys.net
  phil at co.ordinate.org
  Landline: 603.293.8485

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