Clustering Openfire 3.7.1 - xmpp

I am trying for clustering openfire 3.7.1, but still not succeed and don't know what the problem is. Here are the steps:
First, I install Clustering Plugin 1.2.0 from Plugins menu.
Then I go to Server -> Server Manager -> Clustering menu and got java.lang.NoClassDefFoundError: com/tangosol/net/Invocable exception. Searching on the forum, I found that Clustering Plugin needs Oracle Coherence. So I download Oracle Coherence v3.4.2 and copy all jar files from lib dir into openfire lib dir. Then I restart openfire and now clustering menu seems ok, no exception occurred.
I try to enable clustering from clustering menu. It states that enabling clustering may take 30 seconds. But after clicking the Save settings button, the process won't stop even after 10 minutes. So I stopped the process and restart openfire.
I login again and everything seems good. Accessing again the Clustering menu, it shows that the clustering is enabled and there is 1 node listed and running. But when I click the nodes link, it does nothing. Also when I try to access 'Users/Group' menu, it shows HTTP ERROR 500 with org.jivesoftware.util.cache.DefaultCache cannot be cast to com.jivesoftware.util.cache.ClusteredCache exception.
My machine specs are:
Ubuntu 12.04
Openfire 3.7.1
Core i5 with 8 GB memory.

That seems be a problem with 1.2.0 Plugin
Look at this post for further help:
http://community.igniterealtime.org/message/218486#218486

Related

Angular IDE not installing on Spring Tool Suite

For last two days, I am trying to install the Angular IDE for Angular 5 by simply following this tutorial, but after taking too long time for downloading it gives error on STS Version: 3.8.3.RELEASE, Build Id: 201612191351, Platform: Eclipse Neon.2 on Windows 7
After around 2 hours it says that Installation cannot be completed as requested
And then after clicking confirm it shows the below error.
Also, when I look into the progress bar it tries to reach some url continuously like
https://marketplace.eclipse.org/content/angular-ide/content.jar https://www.eclipse.org/downloads/eclipse-packages/content.xml.xz https://www.eclipse.org/downloads/eclipse-packages/content.xml https://www.eclipse.org/downloads/eclipse-packages/artifacts.xml
And when I manually tried to open the URLs then I got 404 URL not found error for all of them except the first one which is of angular-ide/content.jar.
I tried googling for the solution and the results having tutorials or steps to install the Angular IDE only.
Am i missing any configuration setting or something else? Any help or suggestion is highly appreciated.
The error that shows up in the popup indicates that a network issue happened while accessing the p2 repository of the Angular IDE marketplace entry. To resolve that, I would recommend to go to the Preferences -> Install/Update -> Available Update Sites, select the one for Angular, remove that, and restart STS. This wipes out stale cache data and might remain in your install and cause issues if there was a network glitch in the past. Then try again.
I also checked the install via the Eclipse Marketplace on STS 3.9.4 (on Eclipse 4.7.3a) as well as STS 3.8.4 (on Eclipse 4.7.0), and it both seemed to work just fine, so it looks like there isn't a fundamental compatibility problem (at least not with those two versions).
Hope this helps!
Of possible interest, please see: https://grokonez.com/tool/setup-angular-ide-spring-tool-suite
The version of STS I have is:
Spring Tool Suite
Version: 3.9.2.RELEASE
Build Id: 201712210947
Platform: Eclipse Oxygen.2 (4.7.2)
Copyright (c) 2007 - 2017 Pivotal Software, Inc.
All rights reserved. Visit http://spring.io/tools/sts

Unable to validate Weblogic domain" - Oracle Enterprise Pack

I have been facing the "Unable to validate Weblogic domain" issue from OEPE for last 2 days. I have tried
(a) downloading and installing different versions of OEPE ;
(b) Using Eclipse and Oracle Weblogic separately ; outside of OEPE etc
It used to work previously and then one day last week, my system shut down unexpectedly and since then I am not able to get Eclipse (irrespective of version) and Weblogic to work together.
I have moved on to using Jboss for the time being. But since my production environment is Weblogic and I would like to use Weblogic for development purposes as well, I am trying to get this issue resolved.
I did search the Oracle and other communities and somebody mentioned its because of difference in java version and to add
-Dsun.lang.ClassLoader.allowArraySyntax=true
in eclipse.ini. My eclipse.ini already has this statement and I still face the issue.Please help.
Iam not the person who answers this question. But the comment above is the answer for this question and it worked for me too. Below is the solution.
I finally got the resolution for this issue. Actually the full credit goes to my colleague, who resolved this bugging bug. Since it drove me crazy, decided that I would spare others from the same experience First of all, there were no errors in any of the logs. Server was starting up but Eclipse did not recognize it as such. And here is the resolution : Go to Window Tab -> Preferences -> General -> Network Connections Change the Active provider to "Direct". The default is usually Native. and that's it. Close and restart eclipse.
It happened to me as well, I even reinstalled weblogic again, after a bit of research I decided to kill the Java(TM) Platform SE Binary process via Task Manager and restarted the Server.
That's all It took to resolve the issue.

Yahoo hadoop tutorial

I am trying to follow the Yahoo hadoop tutorial:
http://developer.yahoo.com/hadoop/tutorial/module3.html#vm
Everything is fine until I try to connect my Eclipse IDE to the hadoop server process according to the "Getting Started With Eclipse" section. The short story is that my "map reduce location", my DFS Location keeps coming back with "Error:null". My VM is running and I can ping it from my PC. Hadoop server is running as I have run the Pi example.
My PC runs WindowsXP and there is no "hadoop.job.ugi" in the Advanced list for the hadoop location....What does "/hadoop/mapred/system" refer too. There is no such directory in the hadoop installation that you install from the tutorial. It seems like a pretty important directory from the name of the field. I have gone into the advanced settings and switched any reference to my WinXP login (Ben) over to "hadoop-user". It is easy to find in the VM the folder locations that it is looking for like "/tmp/hadoop-hadoop-user/mapred/temp".
Am I right in thinking I can run eclipse on the WinXP environment and connect to the VMWare process via its IP address? Isn't that the point of the article? It does not work.
You read it right. The eclipse plugin for hadoop has lot of caveats and there are couple of things that are not well documented. See the second answer by Icn over Installing Hadoop's Eclipse Plugin. Hopefully that would solve the problem.
"/hadoop/mapred/system" refers to the directories inside HDFS, so you don't see it from terminal using ls
I did see the "hadoop.job.ugi" in Advanced list, and succeed to connected to the VM following the instructions there.
are you using the recommended version of eclipse (3.3.1) ?

netbeans plugin update constantly freezes at 50%

I've been trying to update my netbeans plugins ever since 7.0.1, but I've never been able to get beyond half of the installation bar. It just freezes at around 50% each time. After I close the IDE, it will attempt to update but fail. I've updated to 7.1 but the issue still persists even for the initial Junit plugin installation after a fresh installation of 7.1.
I've attached a screenshot. Does anybody know what is the issue here?
I read in the Definitive Guide to NB Platform 7.1 that you have to install NetBeans (well because of the JUnit) into the folder, where it has write rights. Which is not the Progam Files in Windows 7.
So try to install it for example into C:\Programs or something like that. You can install new version (7.1.1) even without uninstalling the older one and then let the NB get your previous settings (it will ask).
You can try temporarily disabling your firewall and/or antivirus. I got the same problem, and disabling AVG Internet Security everything worked fine. Hope it helps!
I think that problem is in network. So try to change network you are on. I am using university network that has many policies and only JUnit plugin installation stucks. Went to local wireles public network and JUnit plugin was installed successfully.

eclipse very slow to start a plugin install

I use eclipse for my projects.
When I want to install or update a plugin, it is very very slow to calculate dependencies ( about 5 to 10 minutes) and then it is fast to download files and install them.
Do you know how to solve that ?
It is on Ubuntu 10.04 with latest patches + eclipse 3.6.1
No proxy is used. I noticed the problem with several computer at home, but I do not have this problem at work (I use a proxy at work)
Try to uncheck the option "Contract all update sites" before installing your selection. Because p2 would try to check the dependency from all the available update sites(download the metadata repository firstly) when checking that option.
I had very similar issue in Windows recently, but finally I managed to figure out what is causing the extremely slow network connections in Eclipse.
Actually the issue isn't the low bandwidth, but connection timeouts.
The solution in my case was to disable all unnecessary network adapters in Windows like Hamachi's and TeamViewer's adapter. I know you are on Ubuntu, but I'm sure the root of the issue in your case is very similar.
Disabling Windows Defender and other Antivirus/spyware can help. Maybe the speed up is not so high, but at least it will run faster.