[infinispan-issues] [JBoss JIRA] (ISPN-2366) Allow getCache() to return before the node receives any state

[Adrian Nistor (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-2366?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12740424#comment-12740424 ] 

Adrian Nistor commented on ISPN-2366:
-------------------------------------

I have a case in a functional test for ISPN-2362 that is very hard to create unless CacheManager.getCache() returns ASAP instead of waiting for NBST to perform the transfer. I'm not saying we should make getCache() always return immediately but we could make this configurable, some users might need it, most will probably prefer the current behaviour. So this whole issue can be solved by introducing a boolean config 'waitForInitialStateTransferToComplete' in StateTransferConfiguration (and friends) that is 'true' by default and updating StateTransferManagerImpl to skip the waiting if configuration says so. I already implemented this in my t_2362_m branch if you are interested. Would you agree to include this in 5.2.0?
                
> Allow getCache() to return before the node receives any state
> -------------------------------------------------------------
>
>                 Key: ISPN-2366
>                 URL: https://issues.jboss.org/browse/ISPN-2366
>             Project: Infinispan
>          Issue Type: Task
>          Components: State transfer
>    Affects Versions: 5.2.0.Alpha4
>            Reporter: Dan Berindei
>            Assignee: Adrian Nistor
>             Fix For: 6.0.0.Final
>
>
> With NBST it's possible to use a cache without having any local state. We should allow getCache() to return as soon as the joiner has received a consistent hash (actually CacheTopology) from the coordinator.
> This is related to ISPN-1394 - joiners should be able to work even if rebalancing is blocked.

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