Solved

Weblogic monitoring on linux or java, any tool?

Posted on 2014-11-10
9
330 Views
Last Modified: 2014-11-11
Hello people, i've just started to get involved into WebLogic server. This time is the 11.x version.
Yet, they put me in a position where i find the server crashing and with strange Oracle ADF errors.
So in order to actually help tune/optimize these applications i need a way to get how many resources are being used per each application. And another issue is that the garbage collector starts at a huge number (3gb) when we just turn on the app server. We're actually about going  crazy with this... heh
any help?
0
Comment
Question by:JavierVera
  • 5
  • 4
9 Comments
 
LVL 62

Expert Comment

by:gheist
ID: 40435583
JROCKIT/SUN/IBM JDK?
What is the accurate version of weblogic (like 10.3.0.6)
What is exact version of JVM ( like 1.6.0_21)
0
 
LVL 1

Author Comment

by:JavierVera
ID: 40436019
Hey Gheist, thank you for your time.

The weblogic server
11g Release 1 (10.3.5)

and the JVM
1.7.0_51

We've got Jrockit but there is no usage per application. Actually it seems quite simple. Do you know if this tool could get improved by any script or anything?
Thanks in advance !!
0
 
LVL 62

Expert Comment

by:gheist
ID: 40436081
Well it is not about scripts. Only way to get oversight of weblogic is oracle grid/cloud control (which in turn uses JMX behind the scenes)
1.7.0_51 oracle jdk or openjdk or ibm jdk?
(tuning differs greatly)
Once GC pause tuning cannot improve more, i;d suggest splitting web application in components running in reasonably sized multiple "servers".
0
Microsoft Certification Exam 74-409

Veeam® is happy to provide the Microsoft community with a study guide prepared by MVP and MCT, Orin Thomas. This guide will take you through each of the exam objectives, helping you to prepare for and pass the examination.

 
LVL 1

Author Comment

by:JavierVera
ID: 40436097
is there much of a difference between them? we've got the Oracle JDK.

java version "1.7.0_51"
Java(TM) SE Runtime Environment (build 1.7.0_51-b13)
Java HotSpot(TM) 64-Bit Server VM (build 24.51-b03, mixed mode)

It actually says "SE" could THIS be the issue?
0
 
LVL 62

Assisted Solution

by:gheist
gheist earned 500 total points
ID: 40436129
Yes, there is a huge difference between JDKs.
So you are using SUN JDK.
Upgrade to http://www.oracle.com/technetwork/java/javase/7u72-relnotes-2296190.html u71/u72
It has different garbage collector by default called G2 which uses all CPUs during pause - meybe it just hits the right spot.

Actually according to compatibility matrix you need Weblogic 10.3.0.6 to consider Java 7

First - opportunistic patching, then measure, rectify, measure again (measure = log GC pauses)

Some basic guidance here:
http://www.oracle.com/webfolder/technetwork/tutorials/obe/java/gc01/index.html
Remember - what you do has no relation whatsoever with openjdk, ibm jdk, and even less with ibm jdk or jrockit jdk.-
0
 
LVL 1

Author Comment

by:JavierVera
ID: 40436706
hi again Gheist, i am following you up really close. You will get the points for sure, however could you please give me a last hint on how to get the information youre tellin? because basically you're telling me i must downgrade to java 1.6 jdk right?
On the other hand, you seem quite involved into monitoring, could you please give a hint on wich tool use to achieve measuring use per application? than kyou!
0
 
LVL 62

Accepted Solution

by:
gheist earned 500 total points
ID: 40436718
No, you cannot downgrade either.
Document is called "Oracle Fusion Middleware 11gR1 Certification Matrix"
0
 
LVL 1

Author Comment

by:JavierVera
ID: 40436719
thank you! i will start digging into it!
0
 
LVL 62

Expert Comment

by:gheist
ID: 40436729
It is much easier to re-deploy on new system. Patches are not so easy as it sounds.
0

Featured Post

Portable, direct connect server access

The ATEN CV211 connects a laptop directly to any server allowing you instant access to perform data maintenance and local operations, for quick troubleshooting, updating, service and repair.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Upgrading Tomcat – There are a couple of methods to upgrade Tomcat is to use The Apache Installer is to download and unzip and run the services.bat remove|install Tomcat6 Because of the App that we are working with, we can only use Tomcat 6.…
When it comes to showing a 404 error page to your visitors, you do not want that generic page to show, and you especially do not want your hosting provider’s ad error page to show either. In this article, I will show you how to enable the custom 40…
Although Jacob Bernoulli (1654-1705) has been credited as the creator of "Binomial Distribution Table", Gottfried Leibniz (1646-1716) did his dissertation on the subject in 1666; Leibniz you may recall is the co-inventor of "Calculus" and beat Isaac…
Finds all prime numbers in a range requested and places them in a public primes() array. I've demostrated a template size of 30 (2 * 3 * 5) but larger templates can be built such 210  (2 * 3 * 5 * 7) or 2310  (2 * 3 * 5 * 7 * 11). The larger templa…

856 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question