Thanks
Stefan Tilkov wrote:
> To coordinate a distributed transaction, i.e. a transaction that spans more
> than one resource manager (for instance, a DB2 and an Oracle database), the
> commit is done in two phases. That is, of course, why this is called the two
> phase commit (or 2PC) protocol. The controlling entity, called the
> Transaction Manager, asks each RM (resource manager) that has been involved
> in the context of the transaction whether it is ready to commit the changes
> (this is called the "prepare" phase). If all RMs agree that it's OK to
> commit the transaction, the TM asks each in turn to commit (the "commit"
> phase).
>
> The process is defined in the OpenGroup's DTP standard, the most important
> part of which is the XA protocol. This is the protocol used by RMs to
> register with the TM.
>
> Stefan
>
> ----- Original Message -----
> From: "Danny Trieu" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Friday, June 02, 2000 7:37 PM
> Subject: Re: Two Phase Commit
>
> What is 'Two Phase Commit' ?
>
> Thanks,
>
> Stefan Tilkov wrote:
>
> > At least IBM claims it does. Whether this is true in all possible
> scenarios,
> > I don't know.
> >
> > Regards,
> > Stefan
> >
> > ----- Original Message -----
> > From: "Amine Belouali" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Friday, June 02, 2000 1:00 PM
> > Subject: Re: Two Phase Commit
> >
> > Thanks Chris,
> > do you have an idea if Websphere Application Server adv. Edition do it?
> >
> > -----Message d'origine-----
> > De : A mailing list for Enterprise JavaBeans development
> > [mailto:[EMAIL PROTECTED]]De la part de Chris Raber
> > Envoy� : jeudi 1 juin 2000 20:58
> > � : [EMAIL PROTECTED]
> > Objet : Re: Two Phase Commit
> >
> > Amine,
> >
> > Typically there is transaction manager component that registers resources
> > (JDBC connections...) as they are used by beans. When the transaction is
> > committed (either by the container or the bean) the transaction manager
> > executest the two phase commit protocol over the resources.
> >
> > -Chris.
> >
> > PS: Some EJB servers do this for real. Some do not!
> >
> > > -----Original Message-----
> > > From: Amine Belouali [SMTP:[EMAIL PROTECTED]]
> > > Sent: Thursday, June 01, 2000 7:41 AM
> > > To: [EMAIL PROTECTED]
> > > Subject: Two Phase Commit
> > >
> > > Hi,
> > >
> > > I would like to have some informations please about how EJBs manage a
> Two
> > > Phase Commit where they access different data sources (using some
> gateways
> > > like jdbc and odbc)
> > >
> > > Thanks in advance
> > >
> > >
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