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Pythian at PASS 2014

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Join us in Seattle for SQL PASS Summit 2014—planned by and for the Microsoft SQL Server community—where some of our very own will be presenting. You’ll notice that PASS has a funny way of scheduling speaking sessions, so both of our experts are presenting at the same time. Also be sure to visit us at…

Deploying a Private Cloud at Home — Part 5

Today’s blog post is part five of seven in a series dedicated to Deploying Private Cloud at Home, where I will be demonstrating how to configure Compute node and OpenStack services on the compute node. We have already installed the MySQL Python library on compute node in previous posts. Install OpenStack compute packages on the node yum…

Avro MapReduce Jobs in Oozie

Normally when using Avro files as input or output to a MapReduce job, you write a Java main[] method to set up the Job using AvroJob. That documentation page does a good job of explaining where to use AvroMappers, AvroReducers, and the AvroKey and AvroValue (N.B. if you want a file full of a particular…

An Introduction to Extended Data Types in Oracle 12c

One of the lesser known new features that comes as a boon to many developers and DBAs is the provision of implicit handling of large data strings using scalar data types like VARCHAR2 and RAW. When creating tables, each column must be assigned a data type, which determines the nature of the values that can…

Debugging High CPU Usage Using Perf Tool and vmcore Analysis

There are several tools and technologies available to debug deeper into high CPU utilization in a system; perf, sysrq, oprofile, vmcore, and more. In this post, I will narrate the course of debugging a CPU utilization issue using technologies like perf and vmcore. Following sar output is from a system which faces high %system usage. [root@prod-smsgw1…

NZOUG14 Beckons

New Zealand is famous for Kiwis, pristine landscape, and the New Zealand Oracle User Group (NZOUG) conference.  The location of choice is New Zealand when it comes to making Lord of the Rings and making Oracle Lord of the Databases.

Deploying a Private Cloud at Home — Part 4

Today’s blog post is part four of seven in a series dedicated to Deploying Private Cloud at Home, where I will be demonstrating how to configure Imaging and compute services on controller node. See my previous blog post where we began configuring Keystone Identity Service. Install the Imaging service yum install -y openstack-glance python-glanceclient Configure Glance (Imaging…

Deploying a Private Cloud at Home — Part 3

Today’s blog post is part three of seven in a series dedicated to Deploying Private Cloud at Home, where I will demonstrate how to configure OpenStack Identity service on the controller node. We have already configured the required repo in part two of the series, so let’s get started on configuring Keystone Identity Service. Install keystone on…

Oracle E-Business Suite Updates From OpenWorld 2014

Oracle OpenWorld has always been my most exciting conference to attend. I always see high energy levels everywhere, and it kind of revs me up to tackle new upcoming technologies. This year I concentrated on attending mostly Oracle E-Business Suite release 12.2 and Oracle 12c Database-related sessions. On the Oracle E-Business Suite side, I started…

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