Tuesday Mar 18, 2014

WebLogic & JRockit FlightRecording scheduling by Qualogy

As part of an analysis during a longer period of time, I wanted to investigate on a deeper level and for a longer period, JRockit JVM level.

Besides using WLDF embedded FlightRecording, it is also possible to separately record using jrcmd commandline. Within JRockit JDK you have this recording option you can use to take recordings for a certain period or a certain amount of time. These options are available in JRockit Command line (jrcmd.sh - a shell script shipped within your JDK installation directory).

  • The script collects a recording for an hour but you can set your time as you wish. Now, let’s see how the script is built up.
  • First, some parameters are set to identify which JVM you’d like to collect from.
  • Next, we define a period of time of how long recording should run, the actual jrcmd command and name of the compressed file.
  • We set some limits such as maxsize and compress to relieve your filesystem.
  • Last part of the script will take care of some cleaning up. All recorded files older than N days are removed, as well as the tmp folders on your managed server volumes!

I used a remote JRockit MC Console, in which I can see the recordings. Usually you can download them if they have a green light, but because I cleaned the tmp dir of the managed server, I needed to copy the JFR’s manually and load them into my console. Read the complete article here.

WebLogic Partner Community

For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center.

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Thursday Jan 02, 2014

WebLogic 12.1.2: Derby database and elastic JMS by Qualogy

A while ago Oracle released its new version of WebLogic Server 12.1.2 with lots of new cool features such as dynamic clustering and elastic JMS. Now there have been a lot of improvements from an administrative point of view, nevertheless JMS version is still at 1.1 (already since 2002!) Version 2.0 is out but not for this release yet.

For doing some testing I didn’t have an Oracle database present, so why not use WebLogic’s embedded database Derby?

Derby Database configuration
If you have a WebLogic environment configured and you need to test against a database, a quick and easy solution is offered to you. Shipped  from version 10.3.3 WebLogic uses Apache’s Derby database built in (previous versions were shipped with PointBase). Derby is Apache’s OpenSource database based on Java, it’s JDBC drivers and SQL. It has a small footprint so it’s ideal for lightweight operations. Very easy to set up, as you will read in this blog.

You could start the derby database ( on *nix systems) from command line. In the WebLogic server home the derby libraries, binaries and scripts are located under

<WL_HOME>/common/derby.

First start the connection interface:
/u01/app/middleware_1212/wlserver/common/derby/bin/startNetworkServer -h <hostname> (I used localhost, but better use your FQDN)

A more concise way to do is to embed this into your WebLogic domain. This can be done very easily by setting derby tor true in your setDomainEnv file:

DERBY_FLAG="true"
export DERBY_FLAG

Now, there are several ways to create a database:

  • Through derby command line ij:
    /u01/app/middleware_1212/wlserver/common/derby/bin/ij
    connect 'jdbc:derby://localhost:1527/qnlel1dbs;ServerName=localhost;databaseName=qnlel1dbs';
    create=true';
  • In the WebLogic console, which is a very easy way
    derby1

After the test is successful, and you’ve targeted the datasource to the proper servers, it is ready for use. Now, for my test I needed to create some tables and sequences. This can be done through command line with sql: Read the complete article here.

WebLogic Partner Community

For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center.

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Monday Nov 04, 2013

Exalogic Echo release available by Qualogy

Exalogic vDC_FMW-Apps DTAPJust a quick post : there are new Exalogic goodies on Oracle E-Delivery today. Something we have been eagerly waiting for since the spring.

Exalogic Stack version 2.0.6.0.0 (dubbed “Echo release”) is now available for download on E-Delivery (as demonstrated in the screenprints below). This is the third release of the “Exalogic virtual datacenter stack”.

When more information is published about feature additions, improvements and bugfixes in this new release of the Exalogic virtual datacenter I will let you know! Read the full article here.

WebLogic Partner Community

For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center.

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Thursday Oct 24, 2013

WebLogic history an interview with Laurie Pitman by Qualogy

staff1296-640x559All those years that I am working with WebLogic, the BEA and Oracle era are the most well known about WebLogic evolving into a worldwide Enterprise platform for Java applications, being used by multinationals around the globe.

But how did it all begin? Besides from the spare info you find on some Internet pages, I was eager to hear it in person from one of the founders of WebLogic back in 1995, before the BEA era, Laurie Pitman.

Four young people, Carl Resnikoff, Paul Ambrose, Bob Pasker, and Laurie Pitman, became friends and colleagues about the time of the first release of Java in 1995. Between the four of them, they had an MA in American history, an MA in piano, an MS in library systems, a BS in chemistry, and a BS in computer science. They had come together kind of serendipitously, interested in building some web tools exclusively in Java for the emerging Internet web application market. They found many things to like about each other, some overlap in our interests, but also a lot of well-placed differences which made a partnership particularly interesting. They made it formal in January 1996 by incorporating. Read the complete article here.

WebLogic Partner Community

For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center.

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Thursday Apr 04, 2013

Announcement: WebLogic on Oracle Database Appliance by QUALOGY

Last week I was informed by Oracle of the fact that WebLogic Server Enterprise Edition (and implicitly included as part of WebLogic Suite) will include integration functionality to Oracle Database appliance (‘Oracle WebLogic Software Kit for Oracle Database Appliance’) on Oracle Database Appliance X3-2 hardware.
The following can be obtained by deploying WebLogic Server EE in Oracle Database Appliance:

  • Pre-configured highly available WebLogic Server with 2, 4 or 8 nodes cluster options that provide the foundation for the customers to build and deploy enterprise Java EE applications with support for new features in 11g (10.3.6) and 12c (12.1.2).
  • Simple, Reliable, Affordable platform for deploying end-to-end solutions leveraging not only Oracle Database RAC, but also WebLogic Server.

Now, a customer can be very fast in bringing up it’s WebLogic on ODA. These are, as Oracle tells, the general steps to take:

  • Implement ODA in your Datacenter
  • Download Database, WLS Appliance Manager and WLS ODA from EDelivery
  • Run the Oracle Appliance Manager and WLS Domain Configuration

Read the full article here.

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WebLogic Partner Community

For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center.

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Monday Oct 15, 2012

ExaLogic virtual datacenter live at Qualogy

Just a quick post to celebrate another siginificant milestone for Exalogic! After a few days of preparations and some hard work we succeeded in upgrading our Exalogic quarterrack to the newly released Elastic Cloud version 2.0.1.1.0. This version was just recently released on July 25th. This new version turns your Exalogic into a virtual datacenter with many very neat cloud provisioning capabilities. There are many more possibilities in this version to provide strict network and vServer group isolation where needed and it helps you manage multitenancy and delegate your cloud administration.

How did we fare?

Apart from some small inconveniences and minor issues I can tell you it all went remarkably well, provided you do proper homework on the prerequisite requirements and you stick to the instructions all the way through (there’s some 37 steps to cover). We as a specialized Exalogic partner had early access to this version and did some early adopter work. As a customer this is all done for you as Oracle will deliver a new Exalogic with this version from the factory if you so desire, or upgrade your current ones. O fcourse, Qualogy can do this for you as well! Interested contact the Qualogy team info@qualogy.com!

WebLogic Partner Community

For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center.

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