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https://issues.apache.org/jira/browse/IGNITE-6069?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16268459#comment-16268459
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Michael Griggs commented on IGNITE-6069:
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It is essential that server nodes must need to be stopped in order to deploy a
new service. This implies that we have peer-class loading for Service
interfaces and implementations.
> Service versioning
> ------------------
>
> Key: IGNITE-6069
> URL: https://issues.apache.org/jira/browse/IGNITE-6069
> Project: Ignite
> Issue Type: New Feature
> Components: general
> Affects Versions: 2.1
> Reporter: Ilya Lantukh
> Assignee: Ilya Lantukh
>
> Make services upgradable -again-.
> Main points:
> - compute binary type ID by (classname + version)
> - use serialVersionUuid as version ( ?)
> - all service instances with the same name must have the same version
> - make ServiceProxy aware of versions and upgrade process, pause requests
> while service is being upgraded
> - extend Service interface (UpgradableService?) - add ability to collect
> state of previous version before start.
> Once the feature is implemented, it has to be documented extensively. The
> ticket must not be closed until this happens.
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