Knowledge Center Technical Architecture
Yesterday I received the announcement of the new Oracle WebLogic 12c, on the 1st of December 2012. You can register for a webcast on
So, what’s there to be expected. Personally I think WebLogic has been made Exalogic ready, according to Mike Lehmann, Director of Product Management for Oracle WebLogic.
Some of the few features I expect:More Â Exalogic features like:
- Parallel muxers with Java NIO APIs for low-level I/O based operations
- An optimized work scheduler providing improvements to the IncrementÂ Advisor used to manage the size of WebLogic Server’s Self-Tuning Thread Pool
- “Lazy” de-serialization of session data on the replica server until required.
- Multiple replication channels for synchronous in-memory session replication betweenÂ servers in a WebLogic cluster
- Adjustments for supporting the Â Infiniband and SDP
Some time ago… at a Oracle SOA 11g project, we had to call an external webservice which took 1 to 5 minutes to respond. The composite calling this webservice was called by another composite from a BPEL process. As you might guess, we got an timeout resulting in faulted instances. Increasing the timeout time wasn’t as easy as I expected, because it’s not one timeout setting that had to be increased, but a total of five timeout settings! To document this for myself in case I run into it again and to help others with the same problem I’ve wrote it down in this blogpost. If you are searching for how to increase the session timeout of the BPM worklist, go to this blogpost. (more…)
Some people were asked to review my book, here are some links:
- Edwin Biemond
- Jurgen Kress
- Markus Eisele
- Frank Muntz
Years ago, when I worked as an Application Support Analyst for a big triple-A Bank, I got acquainted with the BEA product stack.
One of those products was BEA Tuxedo, at that time at the release of 6. I worked at a settlements project, and Tuxedo was used for as distributed transaction processing, to process settlements an clearing messageg from the bank to an international Clearing an Settlements Project, called CLS. It used the SWIFT network to connect; CLSÂ was an international and timezone independent settlements and clearance platform to overcome timezone and bankrupt issues, and prevent a domino effect when an important bank in the chain becomes bankrupt.
Tuxedo is a transaction processing system or transaction-oriented middleware, or enterprise application server for a variety of systems and programming languages.
Tuxedo was designed for high availability and to provideÂ scalable applications to support a lotÂ transactions per second on commonly available distributed systems. It was developed and designed by AT&TÂ if that required online transaction processing (OLTP) capabilities.
Tuxedo is aÂ message routing and queuing system. Requests are sent to named services More >
If you, like me, like to use (rman) incrementally updated backups, a copy of all datafiles will be present in the Fast Recovery Area. That becomes quite handy if you are in sudden need of extra disk space for your database, and the FRA still has ample space left. By switching one or more datafiles to the copy in FRA, you can very quickly use this extra disk space for your database, while not even having to shut down. I developed a view to generate all the rman commands to execute the switch to FRA, and the switch back to it’s original location and name. Use it at your own discretion.
CREATE OR REPLACE FORCE VIEW rman_switch_datafiles
||'Â switch datafile '||file_id||' to copy in FRAÂ '||chr(10)
||'sql ''alter tablespace '||tablespace_name||' offline'';' ||chr(10)
||'switch datafile '||file_id||' to copy;' ||chr(10)
||'recover datafile '||file_id||';' ||chr(10)
||'sql ''alter tablespace '||tablespace_name||' online'';'||chr(10)
, More >
After a long wait Oracle Enterprise Manager 12c, aka Oracle Enterprise Manager Cloud Control 12c is about to make it’s appearance. You can find information about the EM12c environment via following this link: http://www.oracle.com/technetwork/oem/grid-control/overview/index.html
This will not only bring you to the documentation and download URL’s but also to some ELearning YouTub movies that demonstrate some functionality like, Active Session History Analytics, Real Time ADDM, how to manage and view Coherence, SOA environments, Identity management and Database Cloud Self Service Portal demonstrations (see demos on demand link). In all Oracle Enterprise Manager Cloud Control 12c has become the overall “Red Stack” configuration and management tool for all Oracle products.
The direct link to this is (you will need an OTN login account):
Some first glance pictures here (via YouTube Oracle E-Learning):