#LOGTAIL ARIES UPDATE#
Schedule: Begin T1 Write(P1, x+1) Commit LSN TransID Type Pageid RedoInfo T update P x + 1 T commit Log tail: LSN: log sequence numberĥ Long live the commits Stable storage: abstract storage for log that survives any crash In practice, approximated by keeping multiple log copiesĦ Durability revisited Schedule: Begin T1 Write(P1, x+1) Commit Buffer Although this spec does not appear in the recent OSGi draft spec, it is referred to, and pre-req'd, by the draft specs for Blueprint Declarative Transactions and Blueprint Bean Interceptors.Presentation on theme: "ARIES: Algorithm for Recovery and Isolation Exploiting Semantics"- Presentation transcript:ġ ARIES: Algorithm for Recovery and Isolation Exploiting SemanticsĢ Outline Durability Atomicity ARIES Recovery in Postgresģ Durability Schedule: Begin T1 Write(P1, x+1) Commit Buffer Volatile
#LOGTAIL ARIES FREE#
Feel free to send us patches too.Īs for the standardisation of custom namespaces in Blueprint, this is covered by OSGi RFC 155. We already have some bugzillas on the books which mention Karaf, but I would be delighted if you raised enhancement bugs for other Karaf capabilities that Virgo is missing. Meanwhile, running Blueprint alongside Spring DM is a good way of running blueprint apps in Virgo.Īs for Apache Karaf, yes there are several nice features that Virgo could learn from. On the other hand, it could be a relatively easy drop-in replacement. There may turn out to be a fair amount of work to do because of the close integration of the kernel with Spring DM.
#LOGTAIL ARIES UPGRADE#
I understand the first release of Gemini Blueprint is not too far away, so that will free us up to upgrade Spring DM 1.2.1 to Gemini Blueprint (which includes Spring DM 2.0 function).
We need Gemini Blueprint to release before we can consume it in a Virgo release. Thanks for "surfacing" the discussion in bug 317943.Īs promised, your blog is now linked from the Virgo home page. Overall, Gemini Blueprint on Virgo works great, just as advertised, and I have yet to hit any edge cases. If Gemini Blueprint can support those in the future, or better yet: standardize them, it'd be great. On other project I use Blueprint "Compendium", it seems like Aries' "proprietary" extension on OSGi Blueprint, specifically these namespaces: I just happen to have those (SpringSource EBR version) lying around so I'm a bit lucky. Then Aries needed 3 more JARs: asm, asm.tree, asm.commons. I hope Virgo will also integrate these features, to which Borislav has confirmed that Virgo 3.0 will release with Felix GoGo + SSH integration! (oh yeah!)Īctually, installing Gemini is much less troublesome than Aries because I only had to put 3 bundles (io, core, extender, pretty intuitive) without no missing external dependency.įor Aries Blueprint, I needed 3 Aries bundles (aries.blueprint, aries.proxy, and aries.util), the latter two are not so intuitive to infer that they're blueprint's dependencies but perhaps it's because Aries modules (as a whole) are more cohesive than Gemini subprojects. Though particularly for my sample case, Apache Karaf won big (not to brag the competition, but hoping it would be a constructive feedback to Virgo team) due to well-integrated Felix GoGo, SSH server, Apache Aries as OSGi Blueprint implementation, and also good logging that can be inspected right inside console/SSH (Karaf shell commands like log:tail). So do you want Blueprint support in Virgo ? If so, please comment/vote on and maybe you can help too by testing/developing/etc. In my sample case Gemini Blueprint 1.0.0.M1 ran without problems in Virgo 3.0.0.M5! Yay! I also created a sample PDE plug-in project openly accessible in GitHub:
#LOGTAIL ARIES HOW TO#
I blogged a tutorial on how to integrate Felix GoGo, SSH, and OSGi Blueprint (Gemini Blueprint, but working instructions for Apache Aries also available) with Eclipse Virgo Web Server here: Glyn Normington suggested me to create this thread so other Virgo users would benefit this information.
0 kommentar(er)
