A general question concerning .EAR files?

Hi All,
My question is, what should be the file extension of the utility class that
I will include in my ".ear" file? Should it be filename.jar or
filename.war? The team that I am on has successfully been able to deploy a
.ear file that only contains our entity and session beans. We would also
like to "JAR" up our utility class, so that we may be to use the hot
deployment feature of the application server and the removal of the
enviroment variable where the utility classes are located.
We are currently using the Ant utility to help us build our .ear file.
When I give the utility file name a ".war" extension and then deploy the
".ear" file; the application server boots up successfully without throwing
any exceptions. When I give the utility file name a ".jar" extension and
then deploy the ".ear" file, the application server boots up successfully
with exceptions concerning unable to locate one to several utility classes.
Thank you in advance,
Charles
Charles Jean-Baptiste
[email protected]

It sounds like you are having a ClassLoader problem.
The main advantage of deploying EJBs and WebApps in an ear file is that the
ClassLoader for the webapp inherrits from the ClassLoader for the EJBs.
This basicly means that the webapp can see the EJBs...when you put another
util.jar file in the EAR file this will be in a different ClassLoader and
not accesible by either the EJBs or the WebApp
(and visa-versa)....to make this accesible you need to add the entry
Class-Path: util.jar to the manifest file for the EJB.
1)Create a text file newmanifest.txt with a one line entry of
Class-Path: util.jar
2) When you build the original EJB jar file do like this:
jar cmf newmanifest.txt MyEJB.jar com META-INF
-this will create the jar file MyEJB.jar adding directories com and META-INF
and including the contents of newmanifest.txt in the manifest for the jar
file.
3) Build this all into the ear file.
The EJB will now be able to see the util.jar and because the WebApp can see
the same as the EJB it will also be able to see the util.jar.
Gareth
"Charles Jean-Baptiste" <[email protected]> wrote in message
news:[email protected]...
Hi All,
My question is, what should be the file extension of the utility classthat
I will include in my ".ear" file? Should it be filename.jar or
filename.war? The team that I am on has successfully been able to deploya
.ear file that only contains our entity and session beans. We would also
like to "JAR" up our utility class, so that we may be to use the hot
deployment feature of the application server and the removal of the
enviroment variable where the utility classes are located.
We are currently using the Ant utility to help us build our .ear file.
When I give the utility file name a ".war" extension and then deploy the
".ear" file; the application server boots up successfully without throwing
any exceptions. When I give the utility file name a ".jar" extension and
then deploy the ".ear" file, the application server boots up successfully
with exceptions concerning unable to locate one to several utilityclasses.
>
Thank you in advance,
Charles
Charles Jean-Baptiste
[email protected]

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Question on EAR file Limitations

To Whom it may concern,
We are utilizing Weblogic 9.2 R3 in a 32-Bit Windows Server environment and I am having trouble deploying a ear file. The EAR file contains the help files for our IBM application but it seems to not want to show many of the files when you look at the help for the applicatons. I believe it has to do with the fact that the number of files in the EAR file have exceeded 65535. The # is around 69000 files.
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Edited by: user2237078 on Jul 26, 2011 4:59 PM

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General question regarding environment files in APPL_TOP

Hi. I will be passing my OCP (hopefully) next month and I am now turning my head to teh Applications side since my job involves a lot of Oracle Financials.
I just did a clean installation of 11.5.10.2 but at the level of seeting environment files, my boss swooped in and did them all. I would love to know which ones need changing, or even which ones do what ...
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Thanks - they are the same! That's why the DEV_davidcl.env has all the parameters that according to the doc APPDDEV_davidcl.env should have.
Thanks - very helpful. The DBA here never has any time to explain this stuff, since I think he's been doing it for so long that he doenst understand why anyone would not know it too. Its very hard working for him sometimes since nothing is explained.
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appdbdev:
appdbdev@TEST:more .profile
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. $APPL_TOP/DAVIDCUST.env
. $APPL_TOP/APPSORA.env
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appcldev@TEST:more .profile
APPL_TOP=/oracli3/oracle/devappl;export APPL_TOP
. $APPL_TOP/DAVIDCUST.env
. $APPL_TOP/APPSORA.env
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Then comes the db node:
oradbdev:
oradbdev@TEST:more .profile
. /oradbi3/oracle/devdb/9.2.0/DEV_daviddb.env
. /oradbi3/oracle/devappl/DAVIDCUST.env
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I asked our DBA about this, and he said "dont worry about it". I have to try and run the script to start the application server this morning, but every time I try to su to the db node user I get this:
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Hi,
I've searched the forums, and I found a lot of howto's that sometimes worked, and sometimes didn't. I'm not a gamer, but have been a longtime linux-user.
I have talked a lot of people into using linux, and almost all of them are happy with there new OS, but my brother (my latest convert) is a gamer 'pure sang'. He's not to happy with the switch to Ubuntu:
* Enemy Territory works, but punkbuster keeps kicking him off the servers
* WoW: he was used to getting rocksolid 80+ FPS in windows, now he gets 50FPS with drops to below 20FPS
* Mumble: giving problems
Yesterday I have found a link to a solution for punkbuster - maybe I can solve that one myself. Is it normal that you have a significant amount lower FPS in linux than in windows? I thought the nvidia-blob was about 'on par' with the windows-driver? I have set WoW to OpenGL and applied several tweaks that I have found around the interwebs...
Should I give archlinux for him a try (I only chose Ubuntu to make it easier for him to update)? Since punkbuster is 32bit-only, should I install 32bit linux for him? Or should I advise him to buy a 'windows 7'-licence key?
PS: Is the Archlinux gaming repo still alive? It looks as if no updates have made since early 2010 and only 1 of the 3 mirrors mentioned in the wiki is still up...
THX!

I am a pretty much a gamer, less so in recent years but... I have found that Linux does not offer the same gaming possibilities as Windows. To this day, I am still dual-booting because of gaming, and I doubt that will change in the near future. I have ran things like Half-life2 and Stracraft 2 in Linux with statisfying results, but with generally fewer frame rates than Windows. As for gaming performance, recent test ran by Phoronix suggest that BSD is faster than Linux, but that's not your question. For myself, I doubt you would find a distro with a significant performance boost for gaming, as they all share the same drivers and all share Xorg to produce graphics. The only reserve is that other test ran by Phoronix suggest that "compositing" as used in Ubuntu's Unity or Gnome 3 has some negative effect on 3D gaming performance, so if you switch to Arch, you might want to consider the "less cute" desktops, like XFCE or LXDE and the like, without compositing. Also, I should mention that using 64 bit Linux to run 32 bit windows games tends to make things a little more difficult. If gaming under Linux with Wine is a must, consider staying under a 32 bit version of the distro of your choice.
As for Windows games, you might want to look at Crossover ( http://www.codeweavers.com/ ) which offers an interface to Wine and better support. There is a "gaming edition" of crossover which might help. Check their DB to see which games are supported, but there's a full-featured demo mode anyway, so try before you buy. Also, you might try playonlinux ( http://www.playonlinux.com/ ) wich offers an interfaces that manages Wine installations for you with "recepies" in the background that are known to offer the best results. If you want the "free" option, playonlinux is the way to go if you want the best chances at running your games, if supported.
Lastly, I would suggest looking at http://www.penguspy.com/ to find Linux native games. Of course, that might not satisfy your brother if he wants specific games.
Last edited by jpsimard (2011-09-27 14:50:16)

General question and RAW Files

My apologies if this has been asked before, or if this is in the wrong forum, but I just couldn't find all the answers that I was looking for by searching the forums.
I am getting ready to purchase a new Mac Pro for my wife (and myself of course) because she has really gotten into digital photography. In addition, she has asked for a new high end Camera. Something that would let her enjoy her hobby to the fullest. Now I have a couple of questions I'm still looking for clarification on.
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Hi everyone,
I've read quite a bit about RAID and the various types of arrays one may set up. Most posts give the following info:
••• RAID 0, while fast, is risky because if one drive dies, everything is lost; good backup routines is essential in this scenario (unless it is only used for scratch disk purposes).
••• RAID 1, and other types of mirrored arrays, are safer because of the built-in duplication of the data on one or more disks.
••• Mirrored arrays, as a general rule, should not be used for backup purposes because, while they duplicate data, they don't replace good backup routines and are therefore susceptible to human error, fires, floods, theft, and general calamity.
But there is one question which I cannot seem to find an answer to:
As I understand it, the stability of any particular array depends on the stability of the disks used. I have used quite a lot of harddrives in my years but have never had a drive fail on me. Perhaps I've been lucky. Then again, I've never hooked drives up using RAID.
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Using harddrives in any type of RAID setup, will that make them more prone to failure?
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/pullman

pullman,
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I'm not sure I totally agree about mirrored arrays not being good for backup purposes. In this regard, one must make the distinction between using a RAID array to make a backup, versus using the array to store a backup. In the first case, the data is stored on the array and the built-in redundancy stands in place of a de facto backup strategy. In the second, the backup strategy includes the use of a RAIDed volume to further safeguard the already-redundant backup (which is made by other means).
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Dear Oracle experts,
I would like to try an RAC installation using Oracle 10g on Solaris(Sparc).
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Do I really have to install the database software after installing the Cluster software or
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Best regards,
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Krishna

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