[infinispan-issues] [JBoss JIRA] (ISPN-3401) The default map/reduce cache configuration should have state transfer enabled

[Dan Berindei (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-3401?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dan Berindei updated ISPN-3401:
-------------------------------

              Status: Pull Request Sent  (was: Open)
    Git Pull Request: https://github.com/infinispan/infinispan/pull/2132

    
> The default map/reduce cache configuration should have state transfer enabled
> -----------------------------------------------------------------------------
>
>                 Key: ISPN-3401
>                 URL: https://issues.jboss.org/browse/ISPN-3401
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Distributed Execution and Map/Reduce
>    Affects Versions: 6.0.0.Alpha2
>            Reporter: Dan Berindei
>            Assignee: Dan Berindei
>             Fix For: 6.0.0.CR1
>
>
> Map/Reduce uses a CreateCacheCommand to create an intermediate cache for the mapper/combiner results. The default configuration for the intermediate cache has fetchInMemoryState disabled, which is probably not a good idea.
> CreateCacheCommand also seems too tightly linked to M/R, it contains both the default intermediate cache configuration and a mechanism to check that the cache has started that adds random keys to the cache (and so it can't be re-purposed for creating regular caches).

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