Author Archives: George Valentin Voina

My #Trip to #Dodoma, the Capital City of Tanzania

By | February 29, 2020

This post further documents my business trips and shows people places visited from a business-travel perspective. This time I describe my short visit to Dodoma the old/new capital city of Tanzania. Why old? Because in 1974 the Tanzanian government decided that Dodoma is going to be the new capital of Tanzania. Why new? Because only… Read More »

Travel tips for people who want to #travel more

By | February 22, 2020

In a previous post I was advocating for everyone to travel more and to open their perspective by experiencing more places and cultures. That post proved to be extremely popular with lots of shares and views. I was pleasantly surprised so I decided to share also some of my travel tips. All the tips and… Read More »

World is small, #travel more !

By | September 20, 2020

I advice all people to get out of their comfort zone and travel. Travel to the most strange destinations and see that the world is a small little place where everybody has basically the same desires and hobbies! People are not so different as some politicians want you to think. Isolating yourself from the world… Read More »

#Bash one liner: Search and kill a #Java process based on a path token

By | January 15, 2020

The bash one liner of the day is to find and kill a Java process using one liner. In my case I have a Jboss application server domain that is stuck. By using jps command that displays only the running Java processes is a no brainer to kill the process by using a token that… Read More »

How to build your own mini data center @ubnt @STARTECHdotCOM

By | January 2, 2020

Moving to a new place has its advantages and disadvantage. If you are a geek, obviously you need to make a new home for your IT infrastructure 🙂 The advantage of a new location is that you get to have fun again in setting up a new mini data center. Due to some restrictions (do… Read More »

Time is the new gold ! Why is important to have a life outside the job.

By | December 27, 2019

So what is tech twitter doing on Christmas ? Debating on if it’s good idea to work 40+ hours a week or you have to work more. Toxic tech CEOs, founders and VCs are saying you won’t make an impact to the world if you do not clock more than 40+ hours. The Silicon Valley… Read More »

#Banking is changing and we will have to change its meaning in the near future

By | December 27, 2019

All this started with a tweet by Chris Gledhill: I agree 100% with the idea that the whole idea of banking and what it is to be a bank will change completely in the next years. I just looked around what “traditional banks” do at this point, in this era of post 2008 crisis of… Read More »

#Jboss #Artemis AMQ153005: Unable to retrieve ${0} from JNDI. Creating a new ${1} named ${2} to be used by the MDB

By | December 17, 2019

This is a strange annoying warning that suddenly appeared after I upgraded to JBoss 7.4.2 and was completly flooding my output log. It looks like an warning due to a bad configuration that until version 7.4.2 was ignored. My log looked something like this: Of course the fact that somehow the warning message seems to… Read More »

#Oracle: ORA-02298: cannot validate "key" – parent keys not found

By | December 17, 2019

When trying to add a foreign key to a table sometimes the error ORA-02298 is thrown. Let’s have two tables a MyTable and a MyTableHistory connected by a historyid column from MyTable that points to the id column from MyTableHistory Try then to add add foreign key like: If we are in the case of… Read More »

Use #ELK stack to monitor #JBOSS application server

By | December 13, 2019

The ELK (ElasticSearch+LogStash +Kibana ) stack is maybe the best method to monitor your environment in a simple visually applying way. My task was to monitor the parameters of a Jboss/Wildfly application server where my enterprise application is hosted. There are several guides that describe how to deploy the basic stack, I am not going… Read More »