Oh you are talking about saga finders On Sunday, September 6, 2009, Udi Dahan <[email protected]> wrote: > > The reason we moved to the NHibernateSagaPersister is that we could > use it to automatically generate a schema for the user's saga objects > including the appropriate indexable columns. This means users don't > need to understand more than to point it at a given database and it'll > install and go. > > Hope that makes sense. > > -- Udi Dahan > > > On Sep 5, 10:05 pm, Tyler Burd <[email protected]> wrote: >> I completely agree that an NH dependency would be bad. I think a vanilla >> ADO persister would be a good thing to include. >> >> NSB used to have the DbBlobSagaPersister. It would be nice if there was >> something similar in RSB, but using an NTEXT field and the message >> serializer instead of binary serialization. >> >> On Sat, Sep 5, 2009 at 4:00 AM, Ayende Rahien <[email protected]> wrote: >> > Jason,Because they brought a lot of complexity to the table. >> > I actually think that the local DHT + optimistic is something that I would >> > like to end up with. >> > We can specify a local, self deployed, version for development, and scale >> > up for a remote one for farm scenario and a full DHT cluster for >> > reliability. >> >> > On Fri, Sep 4, 2009 at 11:54 PM, Jason Meckley >> > <[email protected]>wrote: >> >> >> I dug into the code and this finally clicked and I understand the >> >> problem of balancing configuration & extensibility. >> >> I spend most of my time in the previous revision since it's all in >> >> tack. >> >> in looking through it I can understand why you want to re-design how >> >> DHT works. Why remove the persister strategies and local DHT Client >> >> though? that all seems to work without issue. >> >> >> I think a db persister would be straight forward. were talking about a >> >> single table with 6 columns. wrap ADO.Net with a simple facade and >> >> call it a day. you could add a deploy action to build the schema. >> >> have it pull from the config file and add the table under another >> >> schema. similar to Rhino.Security. >> >> >> tyler i would be interested in your database implementation. for my >> >> immediate need I ported Local DHT Client and OptimisticStatePersister >> >> to my project to work against the latest RSB build. >> >> >> On Sep 3, 9:36 am, Tyler Burd <[email protected]> wrote: >> >> > I'm currently using a custom saga persister that I'd be happy to share, >> >> but >> >> > it uses NH and I doubt you want to make that a dependency of RSB. I >> >> found >> >> > it was simple to write (5 minutes), simple to understand, and it just >> >> > works. I didn't need *extreme* throughput, though, and I expect that's >> >> the >> >> > case for the vast majority of projects, so my vote is +1 for a simple db >> >> > persister. It's still going to be a hell of a lot more scalable than a >> >> > traditional thread hungry ASP NET app. >> >> >> > -tyler >> >> >> > On Wed, Sep 2, 2009 at 4:43 PM, Ayende Rahien <[email protected]> >> >> wrote: >> >> > > Right now I am working on the ESB parts of the port, and I am thinking >> >> hard >> >> > > again about what should and shouldn't be in there.On the one hand, one >> >> of >> >> > > the major reasons that I created RSB is that I wanted to make >> >> something that >> >> > > is developer friendly and easy to get started. >> >> > > On the other hand, there are some things where we do want to provide >> >> > > extensibility and customization for the users. >> >> > > For the most part, I think we managed to do that by using the >> >> container in >> >> > > some clever ways, but with the DHT saga storage I think I really >> >> messed it >> >> > > up. >> >> > > It is complex, both to set it up and to make use of it and to >> >> understand >> >> > > how it works. >> >> > > I have tentatively removed it from the project. >> >> > > I would like to provide a saga storage that is easy to use and fit the >> >> bill >> >> > > for most of the operations that you need, without bringing undue >> >> burden for >> >> > > the administrator or developer. >> >> >> > > Last week I had several discussions with Udi about that, and he >> >> pointed out >> >> > > that the most commonly used and easiest to reason about is a locked >> >> saga >> >> > > state. That is, during the execution of a transaction, the state of >> >> the saga >> >> > > is locked. A common example would be using a DB to handle that while >> >> using >> >> > > serializable transactions. >> >> >> > > I still want to enable the "let us just use this" mode, and I still >> >> want to >> >> > > avoid dependencies on infrastructure that isn't xcopy deployable. >> >> > > We can support this easily if we will utilize only the PHT. But that >> >> will >> >> > > work for local mode only. We can make use of the DHT, but then we need >> >> to >> >> > > provide a solution for farm wide locking. A lot of the design behind >> >> the DHT >> >> > > is based on always on system, because I have a requirement to kee
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