On Fri, 2009-03-06 at 12:00 +0800, Noob Centos Admin wrote:
> Spinning off from the other thread about SELinux, I just tried to
> re-enable SELinux on my personal server hosting just email and forum
> for a small local community.
>
> Average load for this Intel Core 2 Duo box with 2GB of ram (usually
> with some 1GB free) was generally below 0.4 for the last 24hrs,
> averaging 0.23 based on MRTG.
>
> Once I did setenforce 1, load shot through the roof to fluctuate
> between 3 to 5. As per my past experience setroubleshootd started
> chewing up ram more than 600M and 500M worth of virt and res based on
> top. The server started crawling and php apps stopped communicating
> with mysql.
>
> I had to kill setroubleshootd in order to return things to normal.
>
> This again reflects my original experience with SELinux: massive
> resource hog and this is just a lowly loaded webserver. Naturally it
> seems to me that this doesn't seem like it should be the norm.
>
> What could be going on here or rather what could be wrong here?
----
did you 'relabel' the entire filesystem? - that's pretty much necessary
if you've been running the system without having SELinux running, at
least in permissive mode.
Craig
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