[infinispan-issues] [JBoss JIRA] (ISPN-4216) Use IGNORE_RETURN_VALUES flag for inserting keys/values in M/R intermediate cache

[Dan Berindei (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-4216?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dan Berindei updated ISPN-4216:
-------------------------------

              Status: Pull Request Sent  (was: Open)
    Git Pull Request: https://github.com/infinispan/infinispan/pull/2509

    
> Use IGNORE_RETURN_VALUES flag for inserting keys/values in M/R intermediate cache
> ---------------------------------------------------------------------------------
>
>                 Key: ISPN-4216
>                 URL: https://issues.jboss.org/browse/ISPN-4216
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Distributed Execution and Map/Reduce
>            Reporter: Vladimir Blagojevic
>            Assignee: Vladimir Blagojevic
>
> Whenever data gets inserted in intermediate cache unsafeReturnValues setting is ignored and previous value from cache is returned every time we do cache#put. We did not experience this slowdown before because we only inserted once per key in intermediate cache put. Now that we do partial batching and transfer of these keys/values, we really hit the wall there with multiple insertions. Adding IGNORE_RETURN_VALUES flag to put invocation is the key to resolve this issue. 

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