Posts Categorized: Technical Blog
Another interesting day today, I was attending the keynotes and I have found them quite interesting. Specially the way Tweeter use MySQL to build-up a nosql solution, jokes a side I take few notes on things I must analyze and dig in. Interesting one was also the introduction of the Paypal models, which brings me to attend the presentation later on. Presentation was well constructed and with some good theoretical work, but I was quite disappointed, I found the presentation incomplete, and missing real numbers for the MySQL Cluster NDB setup.
Tonight at Oracle OpenWorld, Oracle CEO Larry Ellison announced the latest Exadata release: X3. It sports a hardware refresh including a big expansion in RAM and flash storage capacity: 4TB and 22TB respectively on a full rack. Read my thoughts on this here.
I attend five sessions today and I think some of them were very interesting. Like the one on the Optimizer insight, quite informative and accurate.
It is exciting to be here, meeting again old friends and ex colleagues, but also exciting for what seems the start of a very significant conference fro MySQL. I really enjoy the introductions done from Edward Screven and Thomas Ulin. Edward highlight the fact that MySQL is increasing his presence in the market and in the community. This could be also thanks to the unbelievable effort done by Oracle in keeping his production cycle on target.
We have the SIG meeting at Oracle Open World Everyone is welcome. Gwen Shapira is the SIG leader and expect lots of great things in that space. The SIG is also looking for volunteers — that’s going to be hot space so if you want to engage early come and let us know.
Here are a few suggestions to maximize your time at OOW and allow you to get as much bang for your education (and entertainment) dollar as possible:
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
There’s a known bug, 7306820 “ORA-7445 [krhahw] / ORA-27090 during file header read. Instance may crash”, but this bug is fixed in 220.127.116.11, and this database is running 18.104.22.168. 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.
If you remember, I posted some tips about troubleshooting Link Server issue for Oracle earlier. Today I will be posting one more tip to the list aka extending Troubleshooting Oracle Link Server.
Recently we had a situation where in customer have asked us to move Master Database from Local Drive to SAN drive, I have outlined the steps for the task: