I just don't see how serializing a full SessionFactory to disk is a good idea.
What do you mean by "avoiding (caching) the DB metadata retrieving the part"? On Thu, Jan 11, 2018 at 2:08 AM Vlad Mihalcea <[email protected]> wrote: > Yes, out of the JVM. This PR allows the SF to be serialized to a file, so > the next time we bootstrap, we reload the whole SF from the file instead. > > There are many unforeseen issues probably related to this PR and it might > hurt maintenance in the long-run. > > For this reason, I'm going to leave the PR open as-is, and investigate > whether we can bootstrap faster by avoiding (cacahing) the DB metadata > retrieving the part. > > Vlad > > On Wed, Jan 10, 2018 at 7:45 PM, Steve Ebersole <[email protected]> > wrote: > >> The SessionFactory being Serialized outside the VM? Because otherwise it >> is already "serializable" via VM serialization hooks >> and org.hibernate.internal.SessionFactoryRegistry. And I'm not so >> convinced we should support serializing it for "out of" VM use aside from >> what we already do which assumes the new target VM has a similarly named >> SessionFactory in its org.hibernate.internal.SessionFactoryRegistry. >> >> On Wed, Jan 10, 2018 at 11:20 AM Vlad Mihalcea <[email protected]> >> wrote: >> >>> Hi, >>> >>> While reviewing old PRs we have in the ORM project, I stumbled on this >>> one >>> about serializing the SessionFactory. >>> >>> I created a new PR, rebased on top of the current master branch and all >>> tests are passing fine. >>> >>> If anyone wants to take a look, this is the PR: >>> >>> https://github.com/hibernate/hibernate-orm/pull/2107 >>> >>> I'm thinking we should integrate it in 5.3.Alpha and stabilize it if >>> there >>> are some unforeseen changes. >>> >>> The only drawback is that, if we allow the SF to be Serializable, >>> upgrading >>> will be much more difficult in case we change object structure. >>> We could make it clear that this might not be supported or use the >>> serialVersionUID to point to Hibernate version: major.minor.patch. >>> >>> The main benefit is that, for a microservices architecture, Hibernate >>> could >>> start much faster this way. >>> >>> Vlad >>> _______________________________________________ >>> hibernate-dev mailing list >>> [email protected] >>> https://lists.jboss.org/mailman/listinfo/hibernate-dev >>> >> > _______________________________________________ hibernate-dev mailing list [email protected] https://lists.jboss.org/mailman/listinfo/hibernate-dev
