[infinispan-issues] [JBoss JIRA] (ISPN-9620) Rolling Upgrade Marshaller Changes

[Ryan Emerson (Jira)]

    [ https://issues.jboss.org/browse/ISPN-9620?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13808133#comment-13808133 ] 

Ryan Emerson commented on ISPN-9620:
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[~gustavonalle] This is built upon what was discussed at last years F2F. It is a long term goal we're working towards and does not intend to replace the current rolling upgrades that we have. The idea is that we get to the stage where we can do the following types of upgrade:

# Offline upgrade (start/stop). Cache stores are dumped using the old ISPN cluster, new ISPN cluster brought up using the old date.
# [Kuberenetes Rolling updates|https://kubernetes.io/docs/tutorials/kubernetes-basics/update/update-intro/]. This is the long term goal, which requires more than marshalling changes, e.g. versioned interceptor stacks. The marshalling changes are required in this context to allow over the air compatibility between ISPN versions.

> Rolling Upgrade Marshaller Changes
> ----------------------------------
>
>                 Key: ISPN-9620
>                 URL: https://issues.jboss.org/browse/ISPN-9620
>             Project: Infinispan
>          Issue Type: Enhancement
>          Components: Core, Loaders and Stores
>    Affects Versions: 9.4.0.Final
>            Reporter: Ryan Emerson
>            Assignee: Ryan Emerson
>            Priority: Major
>             Fix For: 10.1.0.Final
>
>
> In order to allow for compatibility between infinispan versions it is necessary for us to utilise a marshalling implementation at both the cluster (internal node-to-node communication) and persistence layer that is strictly defined but allows for future changes. This is necessary in order to facilitate both rolling and start/stop upgrades. Protocol buffers should be utilised as the wire/storage format, with protostream providing the implementation.



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