Hardware :: Java Application On Red Hat And Load Sharing
Feb 2, 2011
We have an in-house developed Java application deployed on Red Hat Enterprise version 6.0, on an IBM hardware X3630 N3 model 64-bit server with 6 core processors. Apparently, when the application is running, it is picking up only 2 processes, at random. Hence, the load is not being distributed equally and occupied processors are showing 100% utilisation. How to resolve this so that all 6 processors are being utilised for proper load sharing.
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Apr 14, 2010
So, I have this application called Impact, it is an explicit time integration Finite Elements code written in Java...
[url]
I untar the pack, and launch the application calling a script, from within the untarred folder,
Code:
This launches a gui which allows me to setup a case, which needs some setup file, tipically some *.in and a mesh file, tipically some *.msh.
Other mode of executuion consists of calling the setup file as argument to Impact.sh script ( CLI execution mode, for g33k5 )
My problem is : I have packed the whole stuff into a Slackware .tgz, that places it in /usr/local/Impact, and placed a calling script in /usr/local/bin,
Code:
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I decided to hack the ImpactGUI_OGL_linux_amd64.sh script from
Code:
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no avail,
Code:
even after adding /usr/local/Impact/bin to PATH... won't go...
I can run this thing from within its directory... but I do not like messing within the directories of my applications, this is why I sent this to /usr/local, and placed a calling script in /usr/local/bin...
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Aug 30, 2010
I'm looking for a to-do list program that can be shared between my windows 7 and ubuntu dual boot partitions. I already thought of google calender but I need offline access as well.
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Jan 14, 2010
I'm attempting to set up SGE 6.1 to do load sharing on my network. I am becoming quite confused though with the installation and configuration. I've installed the Master and Exception host on the main server and all services are started. I'm attempting to install a second Exception server now which is causing some of the confusion. Before installing an execution host, you first need to have installed the master server as described in How to Install the Master Host.
Do I do this even on the computers that aren't masters? I'll be setting up Grid on up to 10 computers, does this mean I have to go through the installation process 20 times(1 install of master and execution per computer)? Classic or Berkeley Spooling? By the looks of it Berkeley is the way to go as it is faster than Classic. This will require me to install more software, correct?
If there is a full, non-terribly written guide somewhere I would love to see one. I've been using the ones from Sun but they don't go into detail on most things that could use it.
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Dec 20, 2010
There's a site where you can play classic NES games online without any installation, just need Java: nintendo8.com. But when selecting a game from the site's game list and it tries to load, I get this error:
icedteanp plugin error: Failed to run /etc/alternatives/../../bin/java. For more detail rerun "firefox -g" in a terminal window.
I then ran "firefox -g" from terminal, tried again and got this log:
ERROR: Invalid browser function table. Some functionality may be restricted.
/usr/src/packages/BUILD/icedtea6-1.9.2/plugin/icedteanp/IcedTeaNPPlugin.cc:1506: thread 0x80935c0: Error: Failed to spawn applet viewer: Failed to execute child thread "/etc/alternatives/../../bin/java" (No such file or directory)
I have Java up to date from its repository.
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Jan 18, 2011
I just installed Ubuntu 10.10 last evening and all has been going well. Lucid didn't work out for me, so I used other distros. 10.10 fixed all issues except one thing. This is a need for me; e-courses I take require that I use Elluminate Live, a Java-based conference software. It runs flawlessly on every distro except Ubuntu. I had to use another PC running a different distro in order to get to a class. I really don't want to do that all the time. I thought it may be OpenJDK, but I found that Sun Java was installed and in use (I installed the extras while installing). I tried OpenJDK (worth a shot eh?) and the exact issue persists. All other programs have perfect audio.
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Jun 27, 2010
Ok I just downloaded this program called Phex, it is a really cool program and i get it to run, but only from command line. I downloaded this program and its already compiled and works fine but i can only launch it from a command line by typing "java -jar phex.jar" I have created launchers before and they have worked, but this one just doesn't work. I have all permissions on the directory and the files, but how to create a launcher for this file.
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Oct 6, 2010
I"m running 10.04 on a netbook. I switched my Java look and feel to Nimbus and now my java application opens with most of the buttons and window content missing. The main menu is there, but otherwise the main form is mostly blank. If I restart the application (not my computer) 2-3 times, the problem is resolved until the next time I have to launch the java app. I did not see this issue before changing the look & feel setting for Java. But the GTK l&F doesn't work for other reasons, so I was forced to make a change.
I'm running compiz and I know the blank windows in Java apps was a common problem a while back. I'm not sure if what I'm seeing is related to that old problem or is something different.
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Nov 5, 2010
Just created a partition to run Ubuntu 10.04. Need to execute an Xcel spreadsheet that requires Linux and a JRE from Java. ATT is my DSL provider, but they do not support Linux, so I have no internet connectivity. I downloaded JAVA 6.0 from another machine and attempted to load it - with no success. Two days of no success! I run OS X and Windows 7, but Linux is new to me. I'm trying, but I'm missing something.
Here's the file on my desktop...
jre1.6.0_22
It opened from the native download...
jre-6u22-linux-i586.bin.sh
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Apr 8, 2011
java ran just fine with 10.04 but when i upgrade to 10.10 it stopped working i can not get any of my java files to load, when i dub-click them my cpu spikes then nodda.
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Feb 4, 2016
i cannot seem to find a proper way to make Java my default application to open .jar files. I just made a new Debian 8.3 install on my laptop HP Pavilion G6 and the default application for opening .jar files is the Archive Manager. But when i go to "Open with.." section on right-clicking the .jar file, i get no JRE or JDK option to choose. I just installed the openjdk 7. I can manually run them from the bash, but it would be much more convenient if i just double-clicked it. Here is what i get when i run several commands in the bash :
1) which java ->Code: Select all /usr/lib/jvm/java-7-openjdk-amd64/bin/java
2) java -version -> Code: Select alljava version "1.7.0_95"
OpenJDK Runtime Environment (IcedTea 2.6.4) (7u95-2.6.4-1~deb8u1)
OpenJDK 64-Bit Server VM (build 24.95-b01, mixed mode)
3) echo $PATH: Code: Select all/usr/lib/jvm/java-7-openjdk-amd64/bin:/usr/lib/jvm/java-1.7.0-openjdk-amd64/bin: /usr/local/ sbin:/usr/local/bin:/ usr/ sbin:/usr/bin:/ sbin:/bin
4) javac -version : Code: Select alljavac 1.7.0_95
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Dec 8, 2010
I have these "out of memory" issues with fedora 13 64bit. previously we had centos5, the same environment in terms of programs used, nevr experienced these problems. the issues are for instance a java application already started stops suddenly, or won't even start.
example from tomcat stop:
[code]...
The one thing i don't understand about these numbers is where it goes all that used memory. i only listed the top 40 tasks out of 200 in order of physical ram used, can it be that even if it "sees" 5gb it cannot use it all, just like say windows7 and usable memory? (I recently troubleshooted that one, where out of 12gb w7 reported 8gb usable, I solved that by reverting the cpu overclocking.)
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Jul 25, 2011
When I run a java application (minecraft) the computer occasionally freezes. I'm not sure which version of Java I have. The online java app for telling you which version I have says that I have an old version. The command line says I have an up to date version. If I need to update Java Sun , how do I do it ? I followed the instructions once and didn't work.
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Jun 11, 2009
I am currently taking a Java class and I am not understanding it very well. I have compiled the following program, but it will not give me any data back to where I input the employee name, hours, rate. Can you look it over and tell what I am missing? I have been working on this for about 7 hours now and I have been reading and researching and just can not seem to know what is missing.
public class Employee
{
public static void main( String args[] )
[code]...
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Mar 19, 2010
I'm using Iceweasel on Debian, and my java applets won't work. They used to work fine so I don't understand what happened to them. I installed the latest java jre from Sun and it made no difference. Java plugin seems to work (at least the javascript part) but it can't seem to download applet's. I tried running one locally (ran on of the example applet that came with the Sun jdk, but they won't work on the web) the java console pops up with these errors.
Quote:
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May 5, 2010
Im trying to install Yahoo site builder using wine... the problem is that this program needs java. I tried to install java using wine but it just wont run. Native linux java doesnt works...
Heres the terminal log:
----------------------------------------------------------
hilderith@cpe-001966e2bdb4:~> cd /home/hilderith/Download
hilderith@cpe-001966e2bdb4:~/Download> su
Password:
[Code]....
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Oct 27, 2010
I'm trying to make a java application in netbeans 6.9.1 (ubuntu 10.10) and I need to use the webcam on the system. Now I found this project: [URL] I am able to run the program and see the vid imput from the webcam using: "java -cp /usr/share/java/v4l4j.jar -Djava.library.path=/usr/lib/jni au.edu.jcu.v4l4j.examples.DeviceChooser" The problem is how to import the libaries into netbeans, there is an explanation on the site how to do it with eclipse but I don't have any experience with ecplipse and judging from what people have to say about how it works I don't want that either. I get the following error as output:
[Code]...
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Sep 1, 2010
I have debian lenny, when I run an application is slow to load (example: iceweacel open and it takes, I can hold him iceweacel work normally), I tried to change from gnome to another and the same thing, went down some services (samba, squid) and nothing. I open a terminal and it takes, I want to duplicate it and do it fast. From a terminal without X (tty1) with root run mc and moves quickly, also run as root "sudo mc" and takes to boot.Any action done with sudo it takes to run.Can not be what it takes to make starting the applications, not the PC because it is new, and from one moment to another I began to pass this
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Jan 29, 2010
I want to view the files for RepRap, but do not know which java files to install. Here is the error readout from running the reprap shell script.
Code:
keeper@keeper-netbook:~/Desktop/reprap-mendel-20100105$ ./reprap
Exception in thread "Main" java.awt.AWTError: Cannot load AWT toolkit: gnu.java.awt.peer.gtk.GtkToolkit
at java.awt.Toolkit.getDefaultToolkit(libgcj.so.81)
at java.awt.EventQueue.invokeLater(libgcj.so.81)
at javax.swing.SwingUtilities.invokeLater(libgcj.so.81)
[Code]...
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Jun 24, 2010
I am trying to execute the Java applet to load photos but I am unable to open it. This is what I get when running firefox from terminal
Code:
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May 10, 2010
I just installed Ubuntu 10.04 on my laptop, and am amazed how well everything is working, even on my dual-monitor setup! But, I also have a problem with said setup. I downloaded and installed the XBMC media center, but whenever I open up the application, it displays across both monitors. Since my two monitors are of different sizes and at different heights, it looks really bad. Is there a way to always force it to load on just one monitor?
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Feb 10, 2011
I'm new to the linux world and its been quit sometime since i've done any programming. However, I'm writing a program which simply calculates the load average of a process. In doing this I need to use the uptime command for linux in a java program. I've done a little bit of searching on the net and it mentions this is possiable by using java runtime command. Unfortunatly though I have yet to find a working example of this. I've tried just simply reading the /proc/uptime file but I have no clue how to format the 2 numbers in seconds to make it the same as if you just typed in uptime in the linux command prompt.
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Feb 28, 2011
I know how to get root access in iConnect and ssh into it. I wanted to know whether we can install any applications on it using the package manager and what package manager it supports, like apt(debian based) or is it based on some other distribution.
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Jul 26, 2010
I've just installed java (jre-6u21-linux-i586.bin) on Red Hat 4.4 AS and issued this command to check the java version: java -versionand got :bash :java: command not found
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Apr 6, 2011
A colleague of mine was studying at the University of Vienna and saw an application which was based on linux whereby other pc's booted from it and if on the server they had set it to force a clean install on that PC it would download and install a windows image. Does anyone know of the app or could point me in the direction of a similar app.
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Jul 7, 2011
Im using WPA with a TKIP pre-shared key...Can a client pc im sharing my key with access my files if im not file sharing? Router config?
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Mar 10, 2011
I'm having trouble with my java, I got it to isntall, restarted but when I go to any java based chat, or drawing site it doesn't load the applet, the applet shows up it just says "Start: Applet not initialized"
Did I install it wrong?
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Jun 13, 2011
I try to install the java plugin but the java test pages show not installed. I have tried the openjdk-6-jdk package and the Oracle/Sun 1.6.0_26 version to no avail.
Is there some good instructions page someplace? I have yet to find a set of instructions that provides something clear that works.
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May 29, 2011
Code: ~ $ /usr/java/jre1.6.0_25/bin/java -showversion Error occurred during initialization of VMjava/lang/NoClassDefFoundError: java/lang/Object
That's the error I get. When trying to run a java app with the firefox plugin, the browser simply crashes if it's the 64bit java or tells me it's not installed if it's the 32bit version.
I'm at a loss as to what to do. I think it has something to do with leftover gunk from a previous version I misinstalled(Is that even a word?) Anyway, the only thing that google could come up with was a solution for windows which laid blame on Bill Gates for having a bunch of pf (java prefetch) files stuffed into c:windows for no apparent reason. The solution was to delete them, but I can't seem to find the java prefetch folder in linux. The method I used is downloading the rpm from java.com the rpm2tgz then installpkg then cp libnpjp2.so to firefox plugins folder.
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Feb 18, 2011
This is my first post and I'm pretty new on Debian. I had used Ubunu for a while now and I've decided to move on Debian Squeeze.But I've one problem: I've a Java programm to install and the installer is GUI Java based. When I run the script, I've the next message:
Preparing to install. Extracting the JRE from the installer archive.Unpacking the JRE.Extracting the installation resources from the installer archive.Configuring the installer for this system's environment.Launching installer Graphical installers are not supported by the VM. The console mode will be used instead. Preparing CONSOLE Mode Installation. But this program is not able to run the installation in console mode.
I've tried to install sun-java6-jre but without success.Has anyone an idea to help me install this programm? My Configuration: Debian Squeeze 6.0 amd64.
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