Linux Certification LPIC
Really awesome resource, much better than any other training material seen so far: http://lpic2.unix.nl/index.htmlI am considering taking Linux administration certification - there is an amazing amount...
View ArticleJKS: protecting your Private Key with a password
Strangely, Puppet java_ks module doesn't cater for protecting the Private Key with a password. This feature seems to be available only through the Oracle proprietary ImportPrivateKey tool , through the...
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Monitor cpu usage per thread in java...
There is a thread on SO , from which I discovered the TopThreads plugin for JConsole: http://arnhem.luminis.eu/new_version_topthreads_jconsole_plugin/jconsole...
View ArticleJewish Auschwitz Survivor Ernst Lobethal (aka Ernest Lobet)
I have a keen interest about the history of the Holocaust (I believe that these days we have several Holocausts going on, the Palestinian just to name one...)... so with some paid help I have written...
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bugbuster, the alternative to Selenium
I have just seen a presentation of BugBuster, it's a JavaScript web functional test product with a recorder - a Chrome extension - which is totally integrated to your browser.This means that it...
View Articlejinfo causing segmentation fault on a 64 bit JVM
On a machine, I have jinfo resolving to: /usr/bin/jinfo When I run it against a 64bit JVM, I get: jinfo -sysprops ${pid}Attaching to process ID 26267, please wait...## A fatal error has been detected...
View ArticleAnother nightmare on Remote Desktop Street
Remote Desktop is a stinky piece of code, you can see it by how little it helps you troubleshooting when it fails connecting. The error message is laughable in its generality. First make sure it's...
View ArticleWorkManager: “Maximum Threads Constraint” vs “Capacity Constraint”
Someone was asking "if we set a limit of the number of concurrent requests using a work manager, what will happen to the other requests incoming when the limit has already been reached?" On the...
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Platform as a Service.... Oracle Java Cloud
I have been through this very interesting presentation on Oracle Java Cloud PaaS solution , and I am looking forward to reading the book from Harshad Oak : I am very persuaded that 10 years from now...
View ArticleEnd of my 3.2 years contract on a OSB integration project.... lesson learned.
1) from day 1, get a wiki. NOTHING should simply be documented in emails. Just write all technical info in a wiki and distribute the link to the wiki. We used Confluence wiki: it's simply fantastic....
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Vodafone uk possibly the worst support for offshore customers ever encountered
My pay-as-you-go number all of a sudden can't connect any longer to any network, I have tried several times to connect to My Vodafone web application, always got "invalid login or password", or very...
View ArticleJVM Troubleshooting Guide
I am going through a couple of interesting documents: This one contains many word of wisdom about strategic approach to parametrization of the JVM......
View ArticleJe Suis Charlie, Je Suis Gaza, Je Suis Afghanistan, Je Suis Syria...
and the list of victims of international, NATO-sponsored terrorism could go on for pages... I have just installed the new version of Notepad++, and I go this message at my first run: Freedom of...
View ArticleInstalling Oracle SoaSuite 11g pre-built VM on A Mac Pro (OS-X)
Unfortunately all the instructions on the Oracle site are FOR WINDOWS ONLY (bleah). On a Mac, installing Virtual Box Manager is just as easy. Download the 6 files (7z split file). Here comes the tricky...
View ArticleGarbage Collection Resources
If you are confronted with a JVM crash in PROD, you might want first to read some documents on GC. http://www.oracle.com/technetwork/java/javase/gc-tuning-6-140523.html for Java 6, very well explained...
View ArticleRDF, OWL, SPARQL....
I post these interesting Wikipedia articles, it's always good to learn something new to impress girls in conversations on the train (hahaha just kidding) :these readings are about the "web metadata"...
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It's cool to be Oracle Certified Specialist
You can stick this diploma on your bedroom's wall and impress your friends... After all it cost me only like 250 USD....
View ArticleOracle Unbreakable Linux vs Oracle Enterprise Linux vs Oracle Linux
I was really confused by all these product names... how are they different, and what is what? It turns out that the reality is much simpler: the "Enterprise" qualifier is no longer used - just say...
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Installing Oracle VM Server on.... Oracle VirtualBox!
Download V46550-01 from http://edelivery.oracle.com/oraclevm choose Oracle VM and x86_64 bit Open Oracle VirtualBox, create a new VM , call it "oraclevmserver" , Type = Other, version = Other/unknown...
View ArticleLearning Oracle VM Server (OVS)
I am learning about Oracle VM server. The whole documentation is here http://docs.oracle.com/cd/E50245_01/index.htmlBut first read http://docs.oracle.com/cd/E50245_01/E50249/html/index.html...
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