> OK I just did it. as I already told I have "stress tested it" by
> Since I'm one day late up to my promise to provide this
> patch it's actually fascinating that already 4 people (in esp. not
> newbees requesting a new /proc entry for everything)
> for reassurance that I will indeed implement it... Well
> this kind of "high" and "eager" feadback seems for me to indicate that
> there is very serious desire for it. And then of course I
> just have to ask our people working with DB's here at work as well :-).
I'm one of the four that contacted you. :-) I'm certainly not a newbie and it appears
that you nailed the reason that I'm interested. I'm an Oracle DBA that runs a fairly
large database(s) on Linux. A patch like this is important. Case in point:
We do not have loads of money, so we have to double up our servers. A database server
can also be an app server, or a web server, etc. Now, let's say that Joe Surfer has
10 netscape sessions open on my database server (hey, talk to my boss, it's not my
fault). He's grabbing Pr0n/MP3s/whatever as fast as our 'T' will allow. One of the
websites that he visits has some nasty java that bloats his browser to the point of
OOM. Something has to die in order for the machine to stay alive. Remember the 100
sided die from D&D? Roll it and kill -9? Hopefully not, I should be able to tell the
OOM_Killer to wipe out this user's stuff first, based on the prowess of his UID.
The point being, my database shouldn't be selected for termination. Nobody ever got
fired for kill -9'ing netscape, but Oracle is a different story. I urge you, consider
the patch.
> Ah... and of course I think this patch can already go directly
> into the official kernel. The quality of code should permit
> it. I would esp. request Rik van Riel to have a closer look
> at it...
Whoa, easy there trigger. I'd rather have a wacked out OOM_Killer than a
barely-tested alternative.
Matthew
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