Posts by Gwen Shapira
I’m traveling quite a bit in the next few weeks, here’s where you can find me…
Whenever I tell an experienced Oracle DBA about Hadoop and what companies are doing with it, the immediate response is “But I can do this in Oracle”. Let’s compare.
At this time there are three Hadoop appliances in the market:Oracle’s Big Data appliance, Netapp’s Hadooplers and EMC’s Greenplum DCA. It looks like a lot of companies that did not already adopt Hadoop in 2011, are looking to do so in 2012, and some of them may be considering going with an appliance. I want to take a look at some of the reasons a company will be interested in a Hadoop appliance, and what are the differences between the different appliances.
With every conversation geared towards SSD, the confusion grew. Until I finally had enough, and also had some spare time, and could sit down and untangle the web. Here’s what I found out…
Automatic degree of parallelism, or Auto DOP, is a new feature in 11gR2 that promises to help manage systems where large subset of the workload runs with parallel processing. In this post I’ll introduce the feature and give very useful tips I got from Oracle’s Real World Performance expert Greg Rahn on how to use it. So this is worth reading even if you are familiar with the feature.
With all the buzz in OOW about the big data machine, there was also a lot of non-sense flying around. I love it that the Oracle community is finally interested in Hadoop and NoSQL, but I hate it when people sound authoritative without having an actual clue. I’ve left a few presentations with smoke coming out of my ears. Here are few things that people got all wrong
Oracle announced the Big Data Appliance on Monday morning keynote. Many people, me included, were long waiting for this to happen. Others didn’t think it will ever happen. So naturally, there is a lot of buzz and excitement around the new device in Open World. The keynote announcement was very short on details and certainly did not satisfy my technical curiosity. So I went to a few presentations to hear what exactly is included in the offering. Here’s what I found out.
I’ve attended the Strata conference in NYC last week. Its been many years since I’ve last attended a conference without presenting in it. I decided to attend the conference since it is considered the foremost data science conference. And I was very much interested in what those data scientists are up to. I share some of it here.
I’m an experienced Oracle DBA, I have lots of Linux experience and scores of RAC installations under my belt. I also work for one of the best and more experienced RAC teams in the world. So when a customer asked how long it will take to install 2-node RAC, we answered “2 hours”. It took over 30 hours…
We don’t pay enough attention to Hadoop. By “we” I mean DBAs, the rest of the world is paying plenty of attention to Hadoop. Recently, I started asking my customers and fellow DBAs about Hadoop adoption in their company. Turns out that many of them have Hadoop. Hadoop shows up in large companies and small ones, in established industries and in startups. Its everywhere. Let me tell you what it is and why it’s important.
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