32 bit Java app on 64 bit Linux
Hi, I'm trying to run Zend Studio (32 bit) on fedora 9 x84_64, but am coming across a problem with network access. Specifically, when Zend starts up it can perform an update check, but this fails almost immediately with a useless message (the server could not be contacted). I suspect that I need a 64-32 bit compatibility library to enable network access. Interestingly (annoyingly), a similar issue occurs when replacing the 64 bit version of firefox with the 32 bit version. So I think this is less of a Java issue... Could anybody point me in the right direction please? Thanks, Steve -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
Re: 32 bit Java app on 64 bit Linux
* Steve Dowe [EMAIL PROTECTED] [2008-07-21 10:03]: I'm trying to run Zend Studio (32 bit) on fedora 9 x84_64, but am coming across a problem with network access. Specifically, when Zend starts up it can perform an update check, but this fails almost immediately with a useless message (the server could not be contacted). Are you running the 32-bit JRE? Check the output of the following: $ which java $ readlink -f `which java` # alternatives --config java Andrew -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
Re: 32 bit Java app on 64 bit Linux
Andrew Overholt wrote: Are you running the 32-bit JRE? Check the output of the following: $ which java $ readlink -f `which java` # alternatives --config java The JRE actually installs as part of the Zend Studio product and I have had it running on 32-bit fedora before - so I assume 32-bit. However, here's the output: $ cd /usr/local/Zend/ZendStudio-5.5.1/jre/bin $ ./java -showversion java version 1.5.0_06 Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05) Java HotSpot(TM) Server VM (build 1.5.0_06-b05, mixed mode) Obviously, given this I guess there's not a lot of point me doing the other commands, simply because Zend uses it's own JRE, not Fedora's. Steve -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
Re: 32 bit Java app on 64 bit Linux
* Steve Dowe [EMAIL PROTECTED] [2008-07-21 10:40]: Obviously, given this I guess there's not a lot of point me doing the other commands, simply because Zend uses it's own JRE, not Fedora's. Yup :) Andrew -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
Re: 32 bit Java app on 64 bit Linux
Steve Dowe wrote: Andrew Overholt wrote: Are you running the 32-bit JRE? Check the output of the following: $ which java $ readlink -f `which java` # alternatives --config java The JRE actually installs as part of the Zend Studio product and I have had it running on 32-bit fedora before - so I assume 32-bit. However, here's the output: $ cd /usr/local/Zend/ZendStudio-5.5.1/jre/bin $ ./java -showversion java version 1.5.0_06 Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05) Java HotSpot(TM) Server VM (build 1.5.0_06-b05, mixed mode) Obviously, given this I guess there's not a lot of point me doing the other commands, simply because Zend uses it's own JRE, not Fedora's. Steve 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). Kevin -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
Re: 32 bit Java app on 64 bit Linux
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 network access. 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 about that! 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! Thanks, Steve -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
