Yenlo - Experts in service georienteerde oplossingen Posts

Is ext3 online LVM resize working ?

John Paul van Helvoort — Wed, 08 Sep 2010 19:00:48 +0000

YES :) , if you run kernel 2.6.10 and upwards you should be able to do an online resize of your LVM partition.

Check this :

PRD01:~ # uname -a
Linux PRD01 2.6.27.19-5-default #1 SMP 2009-02-28 04:40:21 +0100 x86_64 x86_64 x86_64 GNU/Linux

( When checked in /etc/mke2fs.conf , you will see a default registration of resize_inode which also indicates that online resizing is allowed. )

Here are the steps i used to do it :

Check your filesystem first :

PRD01:~ # df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/system-root
                      9.9G  3.7G  5.8G  39% /
udev                  1.9G  120K  1.9G   1% /dev
/dev/sda2             996M   25M  921M   3% /boot
/dev/mapper/system-tmp
                      5.0G  1.2G  3.6G  26% /tmp
/dev/mapper/oracle-u00
                      9.9G  5.7G  3.8G  61% /u00
/dev/mapper/oracle-u01
                      4.0G  1.7G  2.2G  44% /u01
/dev/mapper/oracle-u02
                      148G   91G   50G  65% /u02
/dev/mapper/oracle-u03
                       30G  2.1G   26G   8% /u03
/dev/mapper/oracle-u04
                      296G   77G  204G  28% /u04

See if there is any space to give to our lvm volumes :

PRD01:~ # pvscan
  PV /dev/sdb1   VG oracle   lvm2 [599.98 GB / 105.98 GB free]
  PV /dev/sda3   VG system   lvm2 [15.00 GB / 0    free]
  Total: 2 [614.98 GB] / in use: 2 [614.98 GB] / in no VG: 0 [0   ]

Lets add 50 Gb to our /u03 location : ( be aware of the + in the command, without it , your partition will be sized 50 Gb :) )

PRD01:~ # lvm
lvm> lvextend -L+50000M /dev/mapper/oracle-u03
  Extending logical volume u03 to 78.83 GB
  Logical volume u03 successfully resized
lvm> exit
  Exiting.

Our LVM is resized , but the partition still needs a resize to match the volume given :

PRD01:~ # resize2fs /dev/mapper/oracle-u03
resize2fs 1.41.1 (01-Sep-2008)
Filesystem at /dev/mapper/oracle-u03 is mounted on /u03; on-line resizing required
old desc_blocks = 2, new_desc_blocks = 5
Performing an on-line resize of /dev/mapper/oracle-u03 to 20664320 (4k) blocks.
The filesystem on /dev/mapper/oracle-u03 is now 20664320 blocks long.

Now lets check if all is well :

PRD01:~ # df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/system-root
                      9.9G  3.7G  5.8G  39% /
udev                  1.9G  120K  1.9G   1% /dev
/dev/sda2             996M   25M  921M   3% /boot
/dev/mapper/system-tmp
                      5.0G  1.2G  3.6G  26% /tmp
/dev/mapper/oracle-u00
                      9.9G  5.7G  3.8G  61% /u00
/dev/mapper/oracle-u01
                      4.0G  1.7G  2.2G  44% /u01
/dev/mapper/oracle-u02
                      148G   91G   50G  65% /u02
/dev/mapper/oracle-u03
                       78G  2.1G   72G   3% /u03
/dev/mapper/oracle-u04
                      296G   77G  204G  28% /u04
PRD01:~ #

Thats all ! :)

Silent install 11.1.0.1.0 Intelligent Agent using additional_agent.rsp

John Paul van Helvoort — Wed, 01 Sep 2010 19:07:54 +0000

While installing the new Oracle Intelligent Agent 11.1.0.1.0 on windows , i’d like to skip the Oracle registration with MOS account.
In order to do this , i found myself struggling with setting the correct parameters in the additional_agent.rsp file located under (installation dir agent)/win32/response.

This is how i got it to skip the registration part;

SECURITY_UPDATES_VIA_MYORACLESUPPORT=false
DECLINE_SECURITY_UPDATES=true

MYORACLESUPPORT_USERNAME=
MYORACLESUPPORT_PASSWORD=

Pay attention to the lower case false / true , this is different from the Documentation written above in the additional_agent.rsp. which specify’s Upper Case usage of this parameter values.

## Each variable is associated with a comment. The comment
## identifies the variable type.
##
## Please specify the values in the following format:
##
## Type Example
## String “Sample Value”
## Boolean True or False

Starting Oracle Universal Installer…

Checking swap space: must be greater than 150 MB . Actual 6124 MB Passed
Preparing to launch Oracle Universal Installer from C:\DOCUME~1\super\LOCALS~1\
Temp\1\OraInstall2010-08-24_11-33-25AM. Please wait … Warning: Is the followin
g line present in c:\TEMP\11g\win32\response\additional_agent.rsp correct?
MYORACLESUPPORT_USERNAME=

Warning: This line is not added to HashMap
Warning: Is the following line present in c:\TEMP\11g\win32\response\additional_
agent.rsp correct?
MYORACLESUPPORT_PASSWORD=

Warning: This line is not added to HashMap
*** Check for updates ***
*** Select Installation Type ***
*** Check Prerequisites ***
*** Specify Oracle Management Service Location ***
*** Customize Ports ***
*** Review ***

—————————————————————————–

vtable for cxxabiv1:: si_class_type_info@GLIBCPP_3.2

John Paul van Helvoort — Tue, 24 Aug 2010 10:06:08 +0000

When upgrading your RDBMS software tree with 10.2.0.5 , and face the following error in the installation log :

INFO: undefined reference to `vtable for __cxxabiv1::__si_class_type_info@GLIBCPP_3.2′
/u00/oracle/product/10.2.0/db/ctx/lib/libwv_core.so: undefined reference to `std::ios_base::Init::Init()@GLIBCPP_3.2′
/u00/oracle/product/10.2.0/db/ctx/lib/libwv_core.so: undefined reference to `std::ios_base::Init::~Init()@GLIBCPP_3.2′
/u00/oracle/product/10.2.0/db/ctx/lib/libwv_core.so: undefined reference to `operator delete(void*)@GLIBCPP_3.2′
collect2: ld returned 1 exit status
make: *** [ctxhx] Error 1

INFO: End output from spawned process.
INFO: ———————————-
INFO: Exception thrown from action: make
Exception Name: MakefileException
Exception String: Error in invoking target ‘install’ of makefile ‘/u00/oracle/product/10.2.0/db/ctx/lib/ins_ctx.mk’

Please install the following missing packages ,

yum install compat-db compat-libstdc++-296 compat-libstdc++-33 compat-libstdc++-33 libgomp

Who is monitoring the OEM server ?

John Paul van Helvoort — Tue, 24 Aug 2010 09:52:03 +0000

In all cases i’m relying on the the OEM to report incidents which occur on my monitor targets. But is no news always good new ? I had to experience this the hard way by finding my OEM down and production systems screaming for help.
To overcome this problem for the next time , i created a custom script to check availability on the OEM itself. This scripts will check the components which need to run , in order to let OEM work its magic !

This quick peek is part of a larger script with acts as a “heartbeat” to provide us with this necessary information.
On top of this checking mechanism , we also keep track of heartbeat calls. When a call is not received within an specific window , an e-mail is send notifying the support department.

LOG=’/home/oracle/scripts/heartbeat.log’

# =========== FUNCTIONS ================

########################################
# Check OPMN status of our EM GRID
########################################

check_oms(){
echo “—[ Oms ] ————————————————” >> $LOG
# array declare
declare -a array
# Variables
OMS_OK=1
count=0

# Check the Environment
OPMN=`$OMS_HOME/opmn/bin/opmnctl status -fmt %prt20%sta10%utm -noheaders | grep -v logloader | grep -v DSA | grep -v dcm`
array=($OPMN)

num=${#array[@]}

# Check if OPMN is running or not , if not , 0 is returned in OPMN
if [ $num != 0 ]; then

# OPMN is running , so check component state

while [ $count -lt $num ]
do
base=$count
state=`expr $count + 2`
time=`expr $count + 4`
if [ "${array[state]}” != “Alive” ]; then
echo “Component ${array[base]} has a ${array[state]} state” >> $LOG
OMS_OK=0
fi
echo “Component ${array[base]} has a ${array[state]} state and is running for ${array[time]}” >> $LOG

# OHS – 11g , OC4J_EM – 10g

if [ "${array[base]}” = “OHS” ] || [ "${array[base]}” = “OC4J_EM” ]; then
OHSUP=${array[time]}
fi

count=`expr $count + 5`
done

else
OMS_OK=0
echo “OPMN is not Running !” >> $LOG
fi

}

When this function is triggered on a OEM server the following
Command line Output :

—[ Oms ] ————————————————
Component HTTP_Server has a Alive state and is running for 02:43:47
Component home has a Alive state and is running for 02:44:04
Component OC4J_EM has a Alive state and is running for 02:44:04
Component OC4J_EMPROV has a Alive state and is running for 02:44:04
Component OCMRepeater has a Alive state and is running for 02:44:04
Component WebCache has a Alive state and is running for 02:44:04
Component WebCacheAdmin has a Alive state and is running for 02:44:04

Presenting @ IIMA conference

Rene Wiersma — Tue, 24 Aug 2010 08:58:06 +0000

17 – 19 October 2010 the annual Informational Information Management Association (IIMA) conference will be held in Utrecht. The conference discusses actual topics in the business and IT area with innovative academic research. See www.iima.org for more details.

At the conference I will give a presentation about my research on applying DEMO (www.demo.nl) in order to optimize service granularity. The granularity of services is a complex question in service-oriented environments. Academic literature and also field experts admit that having a right granularity of services is a critical success factor in projects.

In my presentation I will elaborate on applying the DEMO methodology and test how DEMO meets the objective of optimizing service granularity. The presentation is supported by a real life project that I have worked on recently. The practical experience on an academic foundation is an interesting combination for everyone who is applying architecture in service-oriented environments.

MonetDB Plug-in for Oracle Enterprise Manager Grid Control

John Paul van Helvoort — Fri, 13 Aug 2010 14:01:03 +0000

After a successful implementation of the Glassfish Oracle Enterprise Manager Plug-in in our support department we are now happy to welcome our new Oracle Enterprise Manager MonetDB plugin to monitor state , usage and memory occupation on running memory allocated MonetDB processes. This plugin was created based on the need to monitor a support customer using MonetDB to provide fast en solid information sharing accross there clients.

A Part of this plug-in is using the deamon process merovingian to provide the latest info on the managed processes.

If others are trying to create the same plugin , please contact me to share knowledge on this topic.

DBMA_SHARED_POOL package is not executed on the Existing Database

John Paul van Helvoort — Fri, 13 Aug 2010 14:00:33 +0000

Oracle provides a solid checking mechanism when it comes to checking the system for possible problems upon installing new functionality.
Today i faced a well written error on “DBMS_SHARED_POOL package is not executed on the Existing Database” while installing Oracle Enterprise Grid Control 10.2.0.3 on an existing 10.2 database at a customers request.

I found a quick and easy solution for my problem by checking if the package is indeed unavailable.

( When searching the install log , you will find the same string as a check from the installer “sqlQuery = select count(*) from dba_objects where owner=’SYS’ and object_name = ‘DBMS_SHARED_POOL’ and object_type in (‘PACKAGE’,'PACKAGE BODY’)” )

SQL> Select count(*) from dba_objects where OWNER = ‘SYS’
AND object_name = ‘DBMS_SHARED_POOL’
AND object_type IN ( ‘PACKAGE’,'PACKAGE BODY’) ; 2 3

COUNT(*)
———-
0

If this returns 0 , you need to install this package when proceeding :

SQL> @/u00/oracle/product/10.2.0/db/rdbms/admin/dbmspool.sql

Package created.

Grant succeeded.

View created.

Package body created.

SQL>

Recheck if the package is now available :

SQL> Select count(*) from dba_objects where OWNER = ‘SYS’
AND object_name = ‘DBMS_SHARED_POOL’
AND object_type IN ( ‘PACKAGE’,'PACKAGE BODY’) ;

COUNT(*)
———-
2

SQL>

Managing database changes with Liquibase

Thijs Volders — Tue, 10 Aug 2010 10:38:11 +0000

Ever had the problem of keeping track of database changes during your software development project? There is a solution in the form of Liquibase.
Many teams will work on the same database. Perhaps even on the same database tables and overall structure. How can you keep track of whom did which changes (and why perhaps) and make sure that no change is ever forgotten or overwritten?
How can you make sure that databases will remain structurally equal over different environments…

Liquibase can provide this functionality. It provides database refactoring automation and keeps track of the changes. Used in combination with a version control system like SVN or Mercury you get a powerful tool to keep track of these changes cross-teams and over time.
Liquibase is database vendor independent but also supports various platforms to allow more vendor-tailored changes to be performed on a database.

Liquibase uses two database tables and a changelog XML file to maintain database state. The database tables contains checksums and changesetids which have been executed by liquibase on that particular database.
The changeLog XML file is used to hold the changeset definitions which is maintained by developers.

The changelog contains the changeSets. These changeSets basically hold the sql-statements which are needed for a particular change. A changeset can contains changes for multiple schemas and multiple tables.

An example of such a changeset:

As can be seen from the example above a changeset has an id and author attribute. The author attribute is not mandatory but allows for easy tracking of whom did the changes.
A changeset should contains a ‘one-transaction’ set of changes. This allows for better rollback when executing a changeset throws errors.

Whenever a teammember needs to make a structural change to the database he (or she) can test this on the development environment and when the actual statements have been defined they need to be inserted into the changelog as a changeset.
At the end of a development cycle the software is release together with the Liquibase-changelog.
Liquibase provides a command-line interface (CLI) to execute this changelog against a database.

As part of the deployment-activities the Liquibase CLI should be executed to get the database for the environment up to par with the release software.

When using Liquibase you should refrain from altering the database manually.
If absolutely necessary to make changes outside of Liquibase make sure that liquibase knows about it to prevent future changelog-execution problem.

More information about this great tool can be found at liquibase.org

Oracle Webcenter, Oracle Portal of toch Liferay?

Ruben van der Zwan — Mon, 09 Aug 2010 08:00:31 +0000

Het kiezen van een portal omgeving is vandaag de dag niet eenvoudig. Er zijn veel leveranciers, zowel open source als ook closed source, die ook nog eens behoorlijk in beweging zijn. Ook de overname van Sun Microsystems door Oracle levert de nodige hoofdbrekens. Welke portal strategie moet een bedrijf vandaag de dag kiezen om morgen gereed te zijn voor de toekomst?.

ADF11g Webcenter application with UCM: emas_fwk_config_ConfigTemplateViewBean.applyAction error.

Harry van Oosten — Mon, 09 Aug 2010 07:01:11 +0000

In our application we’re using WebCenter services to present documents from the Oracle Universal Content Management (UCM). We’ve set this up in JDeveloper and it works fine. But we also want to use it in the stand alone weblogic.

In Weblogic choose your application open Application Deployment –> WebCenter –> Service Configuration:

Choose content repository and press add.

Now when trying to save a content repository connection for the webcenter services in our application we’re getting the following error:

Configuration options currently unavailable. The application might be down, did not start properly, or is incorrectly packaged. Check the log files for further details.
These mbeans encountered exceptions and may not have been saved
ddd – JCR — Could not do this operation, the backing store for this context is read only.
#{emas_fwk_config_ConfigTemplateViewBean.applyAction}: oracle.sysman.emSDK.app.exception.EMSystemException

Thats kind of strange because:

The application is up and accessible
The connection to the content server is valid, we use it in Jdeveloper

After some searching with no result we contacted Oracle Support. They pointed out a specific tag was needed in the ADF-CONFIG.xml

Normally this tag will be inserted on creation of the connection in JDeveloper. For some reason this doesn’t happens always. No the Mbeans can find the property and create a connection in Weblogic.

If you deploy your connections.xml file in the same ear and the following tag is present in the ADF-CONFIG.XML:

Your connection will be pre-configured in your Weblogic and you only have to change your server and credentials.

CPU correctiefactoren Oracle licenties

Ruben van der Zwan — Sat, 07 Aug 2010 16:00:57 +0000

Het kiezen van de juiste Oracle product- en licentiecombinaties (CPU of toch NUP?) kan complex zijn vanwege de grote keuze aan producten en de grote keuze uit licentiestructuren. Het kiezen van de juiste licentiestructuur is echter zeer belangrijk. Wat voor serverpark heeft u? Hoeveel CPU cores bevatten de servers? Wilt u gebruik gaan maken van virtualisatie of toch juist niet? Allemaal factoren die van invloed zijn op de investering die noodzakelijk is om de juiste Oracle licenties in huis te halen.

Belangrijk om te weten is dat Oracle een correctiefactor gebruikt voor elk type CPU op de markt. U wilt bijvoorbeeld een Oracle database aanschaffen voor een server met 4 CPU’s elk voorzien van 6 cores, dan betaalt u bij een Intel gebaseerde CPU: (4 * 6) / 0,50 = 12 maal de lijstprijs minus eventuele aanschafkortingen die Yenlo voor u kan verzorgen. Heeft u echter een server met bijvoorbeeld Sun UltraSparc processoren dan betaalt u slechts 6 maal de lijstprijs. De hardware keuze en zaken zoals virtualisatie hebben dus grote invloed op de Oracle licentie investering.

Correctiefactor per CPU:

0.25 voor SUN’s UltraSPARC T1 processoren (1.0 GHz of 1.2 GHz)
0.50 voor andere SUN’s UltraSPARC T1 processoren (b.v. 1.4 GHz)
0.50 voor Intel en AMD processoren
0.50 voor SUN’s UltraSPARC T2 processoren
1.00 voor IBM’s POWER6 processoren
0.75 voor alle andere multi-core processoren
1.00 voor single-core processoren

Mocht u meer informatie willen hebben over de aanschaf van Oracle licenties, aanschafkortingen, of vrijblijvend tips&trucks ontvangen, neemt u dan gerust contact met mij op, ik help u graag verder.

Glassfish op YouTube

Ruben van der Zwan — Fri, 06 Aug 2010 22:23:07 +0000

Naast alle geschreven informatie op bijvoorbeeld websites www.glassfish.nl is er nu ook een heus YouTube channel in het leven geroepen met voorbeelden en strategieën rondom de Oracle Glassfish producten. Met name Alexis Moussine-Pouchkine maakt er filmpjes namens Oracle en de Glassfish communicty. Recentelijk toegevoegd: de Hudson Provisioning Plugin!

Hoe Agile projecten wel kunnen slagen…….gebruik DEMO!

Ruben van der Zwan — Fri, 06 Aug 2010 14:11:00 +0000

Sinds geruime tijd worden we weer overspoeld door de kreet “Agile software ontwikkeling”. En in essentie is het niet meer of minder dan een conceptueel raamwerk voor het uitvoeren van software ontwikkelingsprojecten als alternatief voor de traditionele starre werkwijzen zoals de bekende waterval methodieken. Deze zogenaamde “lenige” of “behendige” aanpak, wat de naam suggereert, kent in de praktijk echter best wat haken en ogen.

Waar projecten momenteel (onder andere) mee te kampen hebben die zogenaamd Agile worden uitgevoerd is het feit dat het ontwerp- en bedrijfsprocesmodeleringfase nog steeds “star” en dus niet Agile worden uitgevoerd. Mijn inziens wordt dit mede veroorzaakt doordat de bekende ontwerp- en bedrijfsprocesmodeleringsmethodieken (BPM) nog niet berekend zijn op een software developmentteam die direct Agile aan de slag wil met de bouwfase. Maar gelukkig is er een pragmatische en wetenschappelijke methodiek die ons ook in staat stelt om deze cruciale fase in een project op een Agile wijze in kaart te brengen en flexibel te houden…..DEMO.

CHS kiest voor Yenlo Java en Glassfish beheerservice

Ruben van der Zwan — Thu, 05 Aug 2010 08:00:14 +0000

CHS, de specialist in Nederland op het gebied van DBC controle en validaties, en Yenlo, specialist op software ontwikkeling (specifiek in het SOA domein met behulp van Oracle en Java technologie) en op het gebied van 7*24 beheer van Java (Glassfish) gerelateerde informatiesystemen, hebben een overeenkomst gesloten voor het volledige beheer en hosting van alle CHS informatiesystemen binnen de Yenlo beheerservice. Voor de komende jaren zal Yenlo voor CHS alle Java (Glassfish, Liferay, openSSO, openESB) en MonetDB gerelateerde zaken actief beheren in haar NEN7510 gecertificeerde datacentrum.

CHS is in 2007 opgericht met als doel het ondersteunen van zorginstellingen en zorgverzekeraars bij het bereiken van hun kwaliteits-, efficiency- en veranderdoelstellingen. Dit wordt gerealiseerd door ze te voorzien van bruikbare stuurinformatie en praktijkgerichte ICT-oplossingen. CHS is specialist rondom volledig geautomatiseerde (en complexe) DBC berekeningen en validaties. Zorgverzekeraars hebben een formele verplichting om controle uit te voeren op alle gedeclareerde zorg. CHS verwerkt jaarlijks meer dan 80% van alle DBC controles in heel Nederland. Naast analyseproducten (waar onder DubDecTM en Cope-controle®) op het gebied van medisch specialistische zorg zijn ook producten ontwikkeld op het gebied van de GGZ en farmacie. Analyseproducten op andere gebieden binnen de zorg, waaronder tandheelkunde, staan in de planning.

Door deze samenwerking bieden CHS en Yenlo een beveiligde, betrouwbare en stabiele omgeving voor zorginstellingen en zorgverzekeraars rondom ondermeer DBC berekeningen en validaties.

De heer M. Persoon, Adjunct Directeur CHS: “Toen ik op zoek ging naar een partij die de door ons ontwikkelde software betrouwbaar en professioneel kon ondersteunen, was de keuze voor mij gauw gemaakt. Yenlo heeft een uitstekende staat van dienst op de componenten die wij in onze software architectuur gebruiken. Heel specifiek hun kennis op het gebied van Glassfish en openESB, zorgt ervoor dat wij op een veilige en betrouwbare wijze onze dienstverlening kunnen blijven aanbieden aan de zorginstellingen en zorgverzekeraars.”

Klik hier voor meer informatie rondom de beheerservice van Yenlo.

Deel deze informatie op LinkedIN

Pretium Groep kiest voor 7*24 beheerservice GlassFish en Oracle

Ruben van der Zwan — Mon, 02 Aug 2010 20:22:26 +0000

Pretium is een Nederlands bedrijf dat samen met Pretium Telecom en Pretium Finance de Pretium Groep vormt en actief is op de Nederlandse markt sinds 1995. Pretium Telecom is de snelste groeier in de consumentenmarkt voor vaste telefonie, en is inmiddels de derde aanbieder, na KPN en Tele2, in deze markt. Pretium maakt eveneens een sterke groei door op de Nederlandse markt. Het aanbod van Pretium Veilingen, Privileges, Prijzenpot en Extra’s is uniek in Nederland en Pretium heeft dan ook geen concurrenten.

De Pretium Groep en Yenlo, specialist op software ontwikkeling (specifiek in het SOA domein met behulp van Oracle en Java technologie) en op het gebied van 7*24 beheer van Java (Glassfish) en Oracle gerelateerde informatiesystemen, hebben een overeenkomst gesloten voor het volledige beheer en hosting van alle Pretium Groep informatiesystemen binnen de Yenlo beheerservice. Voor de komende jaren zal Yenlo voor de Pretium Groep alle Java en Oracle (Glassfish Applicatieserver en Enterprise Service Bus, Oracle databases en Oracle Fusion Middleware platformen) gerelateerde zaken actief beheren in haar NEN7510 / ISO9000 gecertificeerde datacentrum. De beheerservice betreft zowel de hardware, de hosting als ook het 7*24 technisch en functioneel bewaken van de gehele applicatie- en database omgeving(en).

Klik hier voor meer informatie rondom de beheerservice van Yenlo.

Deel deze informatie op LinkedIN

Calling Oracle Stored Procedures from EclipseLink with multiple OUT parameters

Wouter van Reeven — Fri, 30 Jul 2010 14:49:19 +0000

In Oracle databases it is very customary to perform operations by calling PL/SQL stored procedures and functions. Currently I am developing a Java EE application with an Oracle database which basically means that lots of PL/SQL calls need to be done from Java. We have chosen EclipseLink as JPA layer. The EclipseLink WIKI contains many excellent examples on how to call PL/SQL stored procedures and functions. However, all examples I could find only show how to call these procedures and function when no or at most one return value is to be expected. What if the procedure contains more than one OUT parameter?

ADF11g Drag & Drop broken in FireFox 3 Fixed

Harry van Oosten — Wed, 28 Jul 2010 08:17:30 +0000

Earlier I posted about the fact that Drag and Drop functionality was broken with FireFox 3.

There’s a bug fix to address this issue. You can find it on Metalink under the number 9538640.

ADF 11g and Webcenter; Using file based MDS repository for customization

Harry van Oosten — Mon, 12 Jul 2010 07:00:46 +0000

One of the benefits for using the Webcenter technology is customization. This feature can be used to personalize the application for different end users.

Based on the standard application, smaller or larger changes (deltas) can be applied by the runtime system. The adjustments can be created both at design time (seeded customization) and specified at run-time (via the Change Persistence Framework).

We were struggling to get this to work in our application. In the end we got it and I want to share how.

We only concentrated on the design time customization.

There are a few steps that need to be done to get it to work:

Configure application and Weblogic server
Configure JDeveloper
Doing the design time customization
Deployment of customizations

How to MonetDB on Oracle Enterprise Linux 5.5

John Paul van Helvoort — Tue, 06 Jul 2010 19:26:00 +0000

For those of you who are trying to install MonetDB on OEL 5.5 x86_64 , here is a little how to based on my experience.

First install a basic OS and configure the public yum repo from oracle
( see my previous post on this )

Now install some missing packages by executing the following yum install command :

yum -y install bzip2 bzip2-devel openssl.i686 openssl.x86_64 openssl-devel* zlib.i386 zlib.x86_64 zlib-devel libc* curl-devel.i386 libxslt* libXp libXtst glibc-devel strace java gcc

Create a MonetDB user ( as root ):

groupadd minstall
groupadd dba
useradd -m -g minstall -G dba monet

Download :

ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-8.10.zip
http://dev.monetdb.org/downloads/sources/Feb2010-SP2/MonetDB-Feb2010-SuperBall-SP2.tar.bz2

Install PCRE 8.10 ( as root )

./configure –enable-utf8
make install

Prepair MonetDB installation ( as root )

mkdir -p /u00/MonetDB

chown -R monet:minstall /u00

Install MonetDB ( as monet )

./monetdb-install.sh –enable-sql –prefix=/u00/MonetDB/

Screencasts for Milestone 2 of GlassFish 3.1

Thomas Tromp — Tue, 06 Jul 2010 15:04:47 +0000

The two 5-minute screencasts focus on more clustering (ssh-based) features and websockets support (Grizzly-powered).

Please click here for more information about these screencasts.