ALL POSTS

Partying and Presenting at Oracle OpenWorld 2012

I’ve been attending OOW every year since I moved to San Francisco in 2007. I always enjoy the event – great speakers, parties, crowds, meeting old friends, hearing new product announcement. I like the excitement. This year the event is particularly exciting for me: For the first time, I’m attending as a speaker and not just as attendee. I’ll be speaking quite a bit actually, on rather diverse list of topics. Here’s what my week look’s like?

RAC Attack at Oracle OpenWorld

Along comes the Oracle RAC Special Interest Group (SIG) which is appearing at a conference near you. At Oracle Open World 2012, RAC SIG personnel will be on-hand running RAC Attack – a hands-on lab where you can build a cluster on your Windows, MAC, or Linux personal computer. This is a dream come true. I first did RAC Attack at the UKOUG show in Birmingham last December. I am not anywhere close to being a RAC expert but I have rolled my sleeves up and got into the technology. Do not miss this opportunity at Oracle Open World next week in San Francisco

Bulk Loading Options for Cassandra

Cassandra’s bulk loading interfaces are most useful in two use cases: initial migration or restore from another datastore/cluster and regular ETL. Bulk loading assumes that it’s important to you to avoid loading via the thrift interface, for example because you haven’t integrated a client library yet or because throughput is critical. There are two alternative…

Mass-Testing Dancer’s Plugins

One of the items on the to-do list for Dancer 2 is to verify that most of the plugins already written for Dancer 1 will still work for Dancer 2. Well, I thought, that’s just like doing smoke testing for a small subset of Perl modules. How hard can it be? Lets get cracking…

Couchbase rebalance freeze issue

We came across a Couchbase bug during a rebalance while upgrading online to 1.8.1 from 1.8.0. Via the UI, we upgraded our first node, re-added it to the cluster, and then set the rebalance off.  It was progressing fine, then stopped around 48% for all nodes.  The tap and disk queues were quiet and there…

Jetpants Usage and Installation Gotchas

If you regularly manage enormous data sets, you’ve probably heard about Tumblr’s exciting new toolkit called Jetpants, which automates common processes for MySQL data management, most notably in the area of rebalancing shards for more efficient scaling. In evaluating and using Jetpants in various environments, we identified some interesting installation and usage gotchas, and we’ve…

Pythian at OOW12

Every time I have had the pleasure of attending Oracle Open World, I have discovered a plethora of technical heavy-weights from all over the world in attendance. I enjoy meeting and shmoozing with these people almost as much as absorbing the technical content of the show itself. Many of my Pythian colleagues are presenting at OOW12 and thereby making this fine company AND themselves more renowned in the Oracle tech arena:

Troubleshooting ORA-27090 Async I/O Errors with Systemtap

There’s a known bug, 7306820 “ORA-7445 [krhahw] / ORA-27090 during file header read. Instances may crash, but this bug is fixed in 11.2.0.1, and this database is running 11.2.0.3. And on top of that, it’s an Exadata system, so I/O to storage servers goes over the InfiniBand network rather than using async I/O (AIO) calls.

It’s Your Fun, Not Your iPhone’s

I was thumbing through the photos in my iPhone from my Melbourne trip of August, where I went to present two sessions on Exadata in Insync12 from Pythian. I spent couple of hours on first and last day in sight-seeing or should I say my iPhone did the sight-seeing, and I nursed him. As I was going through the photos, I realized I was kind of watching those places first time. There were many things which were present in the photos, but I never saw them with my own eyes while walking or traveling in the trams or cabs.

Page 70 of 282« First Page...10...6869707172...80...Last Page »