[infinispan-issues] [JBoss JIRA] (ISPN-4025) Cross-Site State Transfer: failure scenarios

[Pedro Ruivo (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-4025?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on ISPN-4025 started by Pedro Ruivo.

> Cross-Site State Transfer: failure scenarios
> --------------------------------------------
>
>                 Key: ISPN-4025
>                 URL: https://issues.jboss.org/browse/ISPN-4025
>             Project: Infinispan
>          Issue Type: Sub-task
>          Components: Cross-Site Replication
>            Reporter: Pedro Ruivo
>            Assignee: Pedro Ruivo
>             Fix For: 7.0.0.Final
>
>
> Needs to handle the following scenarios (at least):
> * join/leave in the consumer site (i.e. site that receives the the state)
> I think NBST will handle most of join scenario. However, the leave scenario needs to be handle carefully or we can loose some key chunks. (easy solution: resend all the chunk?)
> * join/leave in the producer site (i.e. site that sends the state)
> trick scenario. we have to be sure that all keys are really sent! (naive solution: restart the state transfer)
> * state transfer coordinator dies
> the coordinator node is the one that receives the acks when all members has finished sending the keys. Or we replicate its state or we restart the state transfer...
> * site master dies in consumer site
> No idea which keys was already applied or not. need to resend the chunks...

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