Greetings, family.

I am about to install and configure two instances of IDS 11.70 on my
Ubuntu machine. One is release 11.70.FC1, the innovator edition, and
the other is the developer edition, 11.70.FC1DE. I happen to have
installed the FC1 release first. Following the machine notes at
http://publib.boulder.ibm.com/infoce...c/relnotes.htm,
I see it requires that I add the following two lines (simply directory
paths) to /etc/ld.so.conf:
<$INFORMIXDIR>/extend/krakatoa/jre/bin
<$INFORMIXDIR>/extend/krakatoa/jre/bin/j9vm

In my case, that happens to translate to:
/var/opt/ifmx/11.70.FC1/extend/krakatoa/jre/bin
/var/opt/ifmx/11.70.FC1/extend/krakatoa/jre/bin/j9vm

Now what about when I install 11.70.FC1DE? IN this case - both
versions of 11.70 (only one operating under a restriction on the
server size) I could probably get away with only thee lines. But for
anyone with two really different installations, like 11.10 and 11.70
(in separate directories, of course) what is required for the JRE?
Just leave one set or are we required to include this pair for each
product release installed on the box?

If this tidbit is buried somewhere where I have overlooked it, please
point me to the appropriate doc/page, besides simply telling me the
answer.

Thanks mucho!

-- JS

On 18/01/2011 06:42, Beau Nanaz wrote:
Dunno about the proper answer, but leave ld.so.conf for system-wide libs
(/lib, /usr/lib and not much else).

Just point LD_LIBRARY_PATH as needed for each of your Informix
installations.

On Tue, Jan 18, 2011 at 11:50, Richard Harnden
<rh.nospam (AT) tiscali-co-uk (DOT) invalid> wrote:

I agree that whenever possible, you should avoid messing with
/etc/ld.so.conf.

Unfortunately, LD_LIBRARY_PATH is ignored by setuid programs - and ON-Init
is a setuid program. That may mean you have to futz with /etc/ld.so.conf
after all.

Having said that, I believe IDS loads Krakatoa (the JVM support) by
`dl_open()` etc, and that may work 'regardless'. However, because the
machine notes suggest otherwise, there's a decent chance that it won't work
without butchering /etc/ld.so.conf.

One possible alternative might be to create (symbolic) links from under
/usr/lib to the libraries in the $INFORMIXDIR, but I'd be very cautious
about doing that.

--
Jonathan Leffler <jonathan.leffler (AT) gmail (DOT) com> #include <disclaimer.h>
Guardian of DBD::Informix - v2008.0513 - http://dbi.perl.org
"Blessed are we who can laugh at ourselves, for we shall never cease to be
amused."

On 19/01/2011 04:26, Beau Nanaz wrote:
dlopen does ignore LD_LIBRARY_PATH for setuid programs. It'll depend on
if its passed the whole path or just the filename.

You could add paths for all of your JRE install, but it'll just load the
first one in finds. Which is no good at all.

ld.so.conf is no use when you've got multiple installs.

I can't see how that will help. You want to link to different a
lib-with-the-same-name depending on your $INFORMIXDIR.
Ahh, I see:

# Discontinued onconfig variables
#
# The following onconfig variables have been discontinued:
#
# * JVPHOME
# * JVPJAVAHOME
# * JVPJAVALIB
# * JVPJAVAVM

If the dlopen call used JVPJAVAHOME/JVPJAVALIB/libfoo.so, then you
would've been cool.

Maybe it'll search amongst DB_LIBRARY_PATH ... ? Worth a try, anyway.