ALL POSTS

Offline Visualization of Azkaban Workflows

As mentioned in my past adventures, I’m often working with the workflow management tool ominously called Azkaban. Its foreboding name is not really deserved; it’s relatively straightforward to use, and offers a fairly decent workflow visualization. For that last part, though, there is a catch: to be able to visualize the workflow, you have to…

12c: Fun with WITH!

Last night I couldn’t sleep and what else you’re going to do? I was thinking about Oracle stuff. In Oracle version 12, Oracle has enhanced the WITH clause – traditionally used for sub-query factoring – to allow the declaration of functions and procedures. This can be (ab)used to create a very interesting scenario, that is not very…

Some Observations on Puppetrun with Foreman

After joining Pythian I was introduced to several configuration management systems and Puppet was one of them. Foreman is a system management tool which can be integrated with Puppet to manage puppet modules and to initiate puppet runs on hosts from web interface. This is very useful if you want to configure large number of…

How to Configure an Azure Point-to-Site VPN – Part 1

This blog post is the first in a series of three which will demonstrate how to configure a Point-to-Site VPN step-by-step. Today’s post will teach you how to configure a virtual network and a dynamic routing gateway, and the following blog posts will demonstrate how to create the certificates, and how to configure the VPN…

Interesting Behavior of MaxCmdsInTran Parameter

I recently worked on transactional replication issue and discovered interesting behavior of the log reader agent switch called MaxCmdsInTran and wanted to share it with you guys. Lets take a look at  the use of this switch by looking at the msdn documentation below, MaxCmdsInTran number_of_commands Specifies the maximum number of statements grouped into a transaction as the Log…

In-Memory Column Store: 10046 May Be Lying to You!

The Oracle In-Memory Column Store (IMC) is a new database option available to Oracle Database Enterprise Edition (EE) customers. It introduces a new memory area housed in your SGA, which makes use of the new compression functionality brought by the Oracle Exadata platform, as well as the new column oriented data storage vs the traditional…

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