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https://issues.apache.org/jira/browse/ODE-483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12676738#action_12676738
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Tammo van Lessen commented on ODE-483:
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Sound very interesting. However, my gut feeling is that just considering the
communication part of processes it not sufficient in all cases. How does it
work with long-running processes?
Let's think of the following example (pseudo BPEL):
<sequence>
<receive operation="x" variable="v" createInstance="yes"/>
<wait for="3yrs"/>
<reply operation="x" variable="v"/>
</sequence>
What happens if I try to migrate the process after 2 years?
> Add serialize/deserialize process instances in Management API
> -------------------------------------------------------------
>
> Key: ODE-483
> URL: https://issues.apache.org/jira/browse/ODE-483
> Project: ODE
> Issue Type: New Feature
> Affects Versions: Wishlist
> Reporter: Rafal Rusin
> Fix For: Wishlist
>
> Attachments: replayer.diff
>
>
> Imagine situation when client has deployed a process with a lot of active,
> long running instances. Then he finds there's a bug in this process and a
> simple bugfix is needed. But with current versioning rules, new version is
> only used when new instances are created. So there's no simple way for doing
> such bufixes (which are usually possible with eg. java application using
> database connection). It is a blocking argument for deploying ODE Bpel
> solution instead of a regular java application.
> I think the best way to deal with such situations is to add
> serialize/deserialize to/from xml operations for process instances in
> management API. Also pause/resume ODE operations would be useful.
> Then, a bugfix procedure would look like this;
> -pause ode
> -serialize instances
> -deploy newer version
> -deserialize instances and fix manually any import errors
> -resume ODE
> It would also be a benefit of being able to do migration from older to newer
> ODE and between Hibernate/JPA DAOs, which I saw already in some bug reports.
> What do you think about it?
> Regards
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