[rsyslog] Development of failsafe disk based queue

[Rainer Gerhards]

On Wed, 2008-10-01 at 08:43 -0700, david at lang.hm wrote:
> On Wed, 1 Oct 2008, David Ecker wrote:
> 
> > Already did both with 2.18.3 but'll try again with 3.21.5 and 3.18.4. My
> > guess is, that the O_DIRECT in combination with the O_SYNC flag (turning
> > of cache) will have an impact.
> 
> O_DIRECT is doing very different things. I don't think you need to worry 
> about those things, having the data not go into the OS cache is a drawback 
> not an advantage becouse it means that when you go to pull the data back 
> out of the file it will need to actually touch disk. it also imposes 
> significant alignment issues on the application that I don't think you 
> want to have to desl with.

plus rsyslog does not care about the alignment (at this time), so I think it is dangerous...

Rainer