[infinispan-issues] [JBoss JIRA] (ISPN-4144) Cleanly shutdown intermediate M/R cache

[Radim Vansa (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-4144?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12955088#comment-12955088 ] 

Radim Vansa commented on ISPN-4144:
-----------------------------------

1) I wouldn't call clear, this operation has to lock all entries and this would most certainly cause slow down
2) Clear wouldn't get rid of the logs: if one node is not shut down yet and the others already are (and the rebalance is triggered), this node becomes owner of some new *segments*. Then it finds that there is no live owner of these segments and logs the warning. See, it's all about segment ownership, not entries.

I am not sure whether the ability to disable rebalance is currently implemented cache-wise or globally - if the latter is the case, we should probably consider more fine-grained operation.
                
> Cleanly shutdown intermediate M/R cache
> ---------------------------------------
>
>                 Key: ISPN-4144
>                 URL: https://issues.jboss.org/browse/ISPN-4144
>             Project: Infinispan
>          Issue Type: Feature Request
>            Reporter: Vladimir Blagojevic
>            Assignee: Vladimir Blagojevic
>
> For intermediate per task caches we simply remove that cache from cache manager. This operation is cluster wide but it still triggers rebalancing which in turn possibly creates logs that might raise false alarms for admins. Investigate if calling clear before removing cache from cache manager and/or disabling rebalancing for intermediate cache leads to a "cleaner" cache shutdown.

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