32 bit Java app on 64 bit Linux
steve at onecool.com
Mon Jul 21 23:30:32 UTC 2008
Kevin Martin wrote:
> Are you sure that it's using it's own java? Just because it
> installed it doesn't necessarily mean it's using it (one would think so
> but...). It would be interesting to see what Zend is actually using
> (you may be able to do this in the startup script with a "set -x" or you
> may need to look at it with strace).
I tried to strace the launcher but it seemed to cause it to hang (I'm
not a dab hand with strace yet..).
However, I have been looking at this all evening and have discovered
it's not specifically a Java issue, but rather a 32-bit networking
problem. Basically, the 32 bit apps that I have installed (on 64 bit
Fedora 9) are not able to resolve domain names, but they do still have
I installed firefox.i386 and when trying to browse to www.google.com it
responded with "Server not found". I pinged Google, got the IP address
and put that straight into the address bar in FF and hey presto, web page.
So I think I've been inadvertently misleading this investigation. Sorry
There was a really useful (if old-ish) page that helped inform me on the
name resolution process in Linux: http://linuxgazette.net/issue50/tag/1.html
In a nutshell, it /appears/ that calls using gethostbyname() are not
working, but gethostbyaddr() is. I have no idea how to resolve this (no
pun intended). Networking libraries appear to be installed correctly
(AFAIK) in /lib and /lib64.
Any further thoughts very welcome!
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