Posts Categorized: Pythian

Productivity Squared: Character Graphs in-Terminal

In the course of a large cluster database administrator’s job, there are dozens of times a week it can be useful to visualise some data. You’re constantly working with machines that have hundreds of databases, directories, files, log files with often millions of entries each. Wouldn’t it be nice if you could visualise these situations?…

Flashback and Forth

One of the readers of my previous post about Oracle’s Flashback Database, posted a comment noting that the Oracle documentation doesn’t make any reference to the ability of the FLASHBACK DATABASE command to roll the database forward. I knew from experience that the database can be rolled back and forth using the FLASHBACK DATABASE command and decided to have a closer look.

Log Buffer #283, A Carnival of the Vanities for DBAs

Besides of voices of Lata Mangeshkar, Rahat Fateh Ali Khan and Celine Dion, the thing which ticks my heart to no bound is the blogs written by various bloggers covering Oracle, SQL Server, and MySQL related technologies. This Log Buffer Edition is brimming with those chords in Log Buffer #283. Enjoy !!!

Distributed Counter Performance in HBase – Part 1

Recently I was tasked with setting up an HBase cluster to test compared against Amazon’s DynamoDB offering. The client had tested that it worked well for up to 10k updates/sec, but were concerned about the cost. I set up a 7-node HBase cluster in the following configuration: Node1: NameNode, HMaster, Zookeeper Nodes 2-7: DataNodes, RegionServers…

Insync12 Melbourne’s End Heralds a Beginning

Pythian was at Insync12 in Melbourne and your’s truly presented two sessions on Exadata, one dealt with the overview of the machine while answering the justification of the beast, and the other tried to demystify the working of DBRM with the IORM within Exadata. It was a great two days of technical fun was packed with nifty tricks, cool tips, strengthening of knowledge and sharing of it in an exquisite way.

Log Buffer #282, A Carnival of the Vanities for DBAs

Blogging is the way to express an idea in an informal way by a person, who has either worked with it, or planning to work with it, or has seen it at work. In databases, ideas are the foundations of everything, and these Log Buffer Edition is presenting ideas from bloggers in Log Buffer #282.

Pythian Speaking at Insync12 in Melbourne

This Australian conference represents the climax of Technology, Development, and Applications users in one go. As icing on the cake, mobile technology and telecommunications will also feature during this scintillating saga of expertise and sharing of knowledge.

Some Meta Fun with Moose and Avro

I won’t try to bamboozle you: Diving into Moose’s metaclass system is not easy because playing with classes that beget classes is heady, confusing stuff. It often feels like trying to type by looking at the keyboard in a mirror. But once that dragon is tamed, it can do truly wonderful, terrible things…

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