New-age Transactional Systems - Not Your Grandpa's OLTP
John Hugg discusses high volume transaction processing applications with high and low frequency profiles, and how VoltDB can be used for that purpose.
The content has been bookmarked!
There was an error bookmarking this content! Please retry.
Posted by Stefan Tilkov on May 14, 2007
Very nice article. One remark: WS-ReliableMessaging provides reliability on top of HTTP. But unfortunately, the spec says nothing about durability. Almost no WS-RM implementation persists messages to disk and re-delivers message in case of e.g. a system restart. Therefore, WS-RM is not a replacement for JMS (yet). Nor for all the other protocols used on the Internet to communicate reliably between business partners such as EDIINT/AS2, (S)FTP(S), RosettaNet, ...
PS: really enjoyed your talk at Javapolis '06, which is now available on www.parleys.com
Greetings from Belgium, Guy Crets (Apogado)
Hi Guy, thanks for the feedback and kind words on the talk. You make an excellent point. Maybe the next version of the document should include a matrix with the durability support for each framework.
It would be a better idea to show which products/projects have participated in the various interoperability workshops. For example, just because project XYZ says it "supports" WS-A Candidate Recommendation Foo doesn't mean it's actually interoperable with the implementation from company ABC. People mis-read specifications. Some specifications have optional features that may affect interoperability. That's the reason we have these various interoperability events.
Nice paper. But no mention of WS-Transactions. I'm gutted ;-)
It would be a better idea to show which products/projects have participated in the various interoperability workshops. For example, just because project XYZ says it "supports" WS-A Candidate Recommendation Foo doesn't mean it's actually interoperable with the implementation from company ABC. People mis-read specifications. Some specifications have optional features that may affect interoperability. That's the reason we have these various interoperability events.
100% agreed that just because there is a checkbox, doesn't mean the framework is fully interoperable. Adding a section on interop workshops might be an interesting way to show this, but that may border on too much detail for people. Maybe the matrices should include an asterisk saying that a specific project/product did not participate or did not pass interop with flying colors?
It'd help if more specs had test-suites as well. WS-A 1.0 does this, so you can have some idea about basic support (although I'm not sure how much). Test suites might be more meaningful in the WS-SX area where the scenarios are much more involved and you aren't sure how much of the spec each framework supports. I don't think that those frameworks that claim to implement Trust/SecureConversation handle every possible feature/use case.
Another thought is to turn this documentation into a wiki. In addition to making the content much more web friendly, it might let people comment on specific interoperability issues that people run into.
BTW, with my Technical Committee hat on, WS-Policy is in W3C not OASIS ;-)
This is incorrect. However, rather than rant myself, I'll let Paul make the point: www.bloglines.com/blog/paulfremantle?id=34
I like the doc, really clear.
Just FYI, since the first fixpack (6.1.0.1), WAS 6.1 has had support for WS-A 2006/05.
Actually "real-world problems" and "WS-*" is an oxymoron. All this WS-* stuff is becoming a solution in search of a problem...
Cheers,
M.
John Hugg discusses high volume transaction processing applications with high and low frequency profiles, and how VoltDB can be used for that purpose.
Kevlin Henney examines code samples to see what can be learned from them starting from the premise that one won’t write great code unless he knows how to read it.
Jason Ayers share the observations he made watching a team of developers collaborating in real time on the same code base, pushing XP, pair programming and continuous integration to their extremes.
Michael Snoyman presents Yesod, a web framework written in Haskell and containing a web server, templating, ORM, libraries (templating, gravatar, etc.).
Richard Kreuter and Kyle Banker on how to avoid classical RDBMS transactional systems by using compensation mechanisms, transactional messaging or transactional procedures.
Attila Szegedi talks about performance tuning Java and Scala programs at Twitter: how to approach GC problems, the importance of asynchronous I/O, when to use MySQL/Cassandra/Redis, and much more.
One category of risk that project teams need to ensure they address is business value failure – delivering a product that fails to provide value for the business investor.
InfoQ spoke to the authors of Software Systems Architecture on a couple of new topics, the System Context viewpoint and Agile, which have been added to the second edition.
9 comments
Watch Thread Reply