Inspired by the benchmark in this post, we decided to run some NDB vs Galera benchmarks for ourselves. We confirmed that NDB does not perform well using m1.large instances. In fact, it’s totally unacceptable – no setup should ever have a minimum latency of 220ms – so m1.large instances are not an option. Apparently the…
Recently a client of ours who used opsview to manage their resources needed to place some of their hosts into downtime in conjunction with some other cron-scheduled tasks. In order to implement that functionality, I created this simple script that should work with most installations of opsview, or with a few modifications, can be modified…
Not many of you know that my day to day work focus is Oracle e-Business Suite :). Here goes EBS related blog post …Recently several of my team’s clients upgraded to R12.1.3 version and faced the same problem related to OACORE memory settings.
Just a short note documenting a procedure that isn’t done frequently, and I didn’t see described anywhere else. Somewhere last month a customer asked for my help in changing the SIDs on one of his RAC databases to match the new corporate standard. The database name matched the standard so we could leave that alone, but the SID needed to be changed. Here’s what we did to change it
It’s always sunny in the database arena, even if the data is engulfed in the clouds. Innovation rays keep databases illuminating and bloggers make hay in this sunshine and this Log Buffer Edition sift through all those blog post and brings you Log Buffer #298.
The environment was an Exadata environment undergoing pre-production stress testing. We used Real Application Testing to take a highly-concurrent OLTP workload, and replayed the workload with the synchronization parameter set to FALSE, effectively increasing concurrency beyond the original test system. AWR showed a large volume of buffer busy activity.
UKOUG roadmap to maintenance windows… please enjoy this copy of the recent presentation I gave at the UKOUG 2012 conference in Birmingham England. Feedback and comments always welcome.
The CORE database audience has been well served at this year’s version of the UKOUG forum. Many of the shows we attend concentrate on the late-breaking components of the vendors’ new offerings. The attendees are hungry for this information and having it delivered in a 4-5 day package is very helpful.
RACing up the Miles … please enjoy this copy of the recent presentation I gave at the UKOUG 2012 conference in Birmingham England. Feedback and comments always welcome …
The mix of presentations at the UKOUG this year offers a plethora of education for a variety of attendees’ areas of concentration and I, being primarily a CORE database person, will easily find food for thought for sessions to attend when not tied up elsewhere.