[Dxspider-support] Auto-spawn with "upstart"

[Dirk Koopman]

On Sun, 2006-12-31 at 17:41 -0500, Steve Murphy wrote:
> Hello everyone,
>  
> I recently switched my node over to a Linux system that uses "upstart"
> instead of init.d.  Since I'm extremely lazy,
> does anyone have an upstart script written for DXSpider that they'd be
> willing to share?  

"upstart"? Never heard of it. In any case, the recommended way of
starting DXSpider is to stick a line like:-

sp:2345:respawn:su -c "perl /spider/perl/cluster.pl > /dev/null 2>&1" spider

into /etc/inittab and then doing a 'telinit q' (or rebooting) to
activate it. I don't recommend using an init script (nor anything like
it because anything that one would want to do merely tries (and usually
fails) to simulate what /etc/inittab does already [in particular: sanely
restarting the node automatically on failure]). 

Having said that, I am now looking at the documentation of "upstart" and
I shall see whether I can do something. However, I suspect that it will
not replace the inittab route as being the most reliable method. 

Dirk G1TLH