While while running a simple
beeline > select count(*) from samvi_test_table;
Got the following error.
Job Submission failed with exception 'org.apache.hadoop.security.AccessControlException(Permission denied: user=root, access=WRITE, inode="/user":hdfs:supergroup:drwxr-xr-x
at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.check(FSPermissionChecker. (more...)
On his recent Forbes report, Greg Satell lays down 5 steps to get Big Data working in your business. The first four are very well captured, but it was the fifth that really caught my attention: “Adopt a Big Data Mindset“. This is exactly where I want to drill in (more...)
Thank you all who attended my sessions at NYOUG Fall Conference this morning. I appreciate spending you most precious commodity - your time
- with me. I sincerely hope you found both the presentations enlightening as well as entertaining.
Please see the details of the sessions below along with the (more...)
I've talked before about why large canonical models are a bad idea and how MDM makes SOA, BPM and a whole lot of things easier. This philosophy of 'minimum on the wire' helps to create more robust infrastructures that don't suffer from a fragile base class problem and better match (more...)
We hear lots and lots of hype at the moment around Hadoop, and it is a great technology approach, but there is also lots of talk about how this approach will win because Google and Yahoo are using it to manage their scale and thus this shows that their approach (more...)
Yesterday's UKOUG Analytics event
was a mixture of presentations about OBIEE with sessions on the frontiers of data analysis. I'm not going to cover everything, just dipping into a few things which struck me during the day
During the day somebody described dashboards as "Fisher Price activity centres for managers". (more...)
This year’s R User Conference happened in Albacete (Spain), gathering R professionals and enthusiasts all over the world since 2004, when it first began in Vienna. The sponsors this year were REvolution analytics, Google, R-Studio, Oracle, and TIBCO. Other companies like OpenAnalytics and Mango Solutions were also present with a booth stand. Besides sponsoring the (more...)
today announced the availability of Oracle Event Processing for Oracle
Java Embedded, a smaller footprint version of Oracle Event Processing
(OEP) tailored for deployment on gateways. This can change the game plan
for your organization’s responsiveness by harnessing Fast Data.
an increase in the number of mobile devices (more...)
Big Data – The New Information Before asking the crystal ball what can Big Data do for you, sit back and think about these four questions: Where’s the new information? Where could it be? If it was in the right place, what could happen? (Challenges of the main industries) What are the (more...)
Coming back from the EMC World conference in Las Vegas I was looking at the people playing on the slots and making ridiculous bets at Craps and wondering 'don't these people know anything about statistics?'. Lets be clear I get the idea of it being fun, but when you (more...)
There is something that is beginning to irritate me, ok something else. Its mobile applications that don't cache. I'm fed up of travelling on a train or being on a plane and the end result being that my iPad or iPhone app doesn't work because I'm in an area that (more...)
Hello readers of my infrequent blog posts! I have started a new job, working on documentation for Cloudera, specifically for the Impala project, which is bringing fast interactive SQL to the Hadoop ecosystem. Read the Impala documentation. Download the Impala software. Get the QuickStart VM to play around with a (more...)
In all of my career to date in IT there really has been three clear worlds in IT, the software development guys who are the bespoke tailors, the package guys who deliver off the shelf and the BI guys.
I'm going to admit a prejudice here. Until a couple of (more...)
Oh the chanting is out, Big Data, Fast Data, the three 'V's and of course the ubiquitous elephant are roaming across the IT landscape as the next great hype monster. Its going the same way as pretty much every IT hype exercise. Yes this links to the hype cycle but the (more...)
“It’s the analytics stupid!” Obviously the offense is not intended at the dear reader. It’s a wake up call for all the people excited with Hadoop and lack BI vision. The BI people that lack infrastructure vision are also to blame. Blame for what? We’ll see later in this (more...)
Since I joined a Big Data Event : Frankfurter Datenbanktage 2013 - I started to take also a look to non-relational technics too. The RDBMS is not for every asepct the correct and fitting and fulfilling answer to all data related IT challenges.
Frequently I wondered about how facebook (more...)
What’s all the fuss about Big Data?
Big Data is the collective term for very large and potentially complex data sets that are deemed to be so large that it’s difficult to handle the data using traditional tools and applications such as Relational Database Management Systems. Scientists in the fields of physics, genetics and meteorology were previous examples of those that encountered Big Data.