RE: Jan 2015 JVM PSU
- From: "MacGregor, Ian A." <ian@xxxxxxxxxxxxxxxxx>
- To: "oracle-l@xxxxxxxxxxxxx" <oracle-l@xxxxxxxxxxxxx>
- Date: Fri, 6 Mar 2015 16:42:14 +0000
XDB IN Oracle 11 has dependencies on two schemas MDSYS and ORDSYS which in
turn have dependencies on JAVA CLASS type objects. ORDSYS owns the
multimedia component of Oracle. We have dependencies on this in relation to
photographic thumbnails and other images.
Ian MacGregor
SLAC National Accelerator Center
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On
Behalf Of Jeff Thomas
Sent: Friday, March 06, 2015 8:17 AM
To: knecht.stefan@xxxxxxxxx
Cc: jeremy.schneider@xxxxxxxxxxxxxx; oracle-l-freelists;
steve.harville@xxxxxxxxx; Hemant-K.Chitale@xxxxxx
Subject: Re: Jan 2015 JVM PSU
Doesn't 12c require the JVM because of the mandatory XDB component?
On Fri, Mar 6, 2015 at 9:10 AM, Stefan Knecht <knecht.stefan@xxxxxxxxx> wrote:
I couldn't agree more. Don't install what you don't need - not only
does that greatly increase security, but also overall stability. I can't
recount all the issues I've ran into when upgrading some "DBCA-next-next-next"
type databases that had like a dozen DD components. On top of that, upgrades
also take forever, and that, in turn translates directly to more downtime, and
thus more cost ( depending on the environment)
And regarding the JVM - check how many objects that thing loads into
your database; that translates to more potential exploitable bugs.
Stefan
On Mar 6, 2015 8:55 PM, "Jeremy Schneider"
<jeremy.schneider@xxxxxxxxxxxxxx> wrote:
On Fri, Mar 6, 2015 at 1:40 AM, Chitale, Hemant K
<Hemant-K.Chitale@xxxxxx> wrote:
> IMHO, a bad idea. Components increasingly have dependencies.
Not testing all of your processes - which should discover
dependencies
- is a bad idea. Not installing unneeded components is
definitely a
good idea. (Also a requirement for some more stringent audits
and
certifications.)
> For example, I
> remember that export would fail if JVM wasn't properly
installed (maybe
> export works if JVM isn't installed at all) Since 10g I've
always installed
> the JVM.
I have never encountered data pump export being dependent on
the JVM.
The only export oddity I've run into is TTS exports
pre-11.2.0.3 will
fail of xmldb is not installed - but this is not a dependency
it's a
bug. There's a workaround (exclude=xmlschema) and patches
available
to fix it. Dependencies should be documented as such; if you
find a
"dependency" which is not documented then you should be opening
a bug
against it so that it will either get acknowledged as an
explicit
dependency and documented, or it will get fixed. That sort of
thing
is a very obvious bug report since it's so easily reproducible.
-Jeremy
--
http://about.me/jeremy_schneider
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