[infinispan-issues] [JBoss JIRA] (ISPN-2392) Optimize locking behaviour in non-transactional caches

[Thomas Fromm (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-2392?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12743743#comment-12743743 ] 

Thomas Fromm commented on ISPN-2392:
------------------------------------

I tried to change all REPL w/o TX to DIST and 1k numOwners... the result was very strage. For example hanging (jgroups) threads which blocks shutdown and so on :-o Unfortunality I've no time to investigate deeper this, so I stay with enabling TX for these REPL caches.

                
> Optimize locking behaviour in non-transactional caches
> ------------------------------------------------------
>
>                 Key: ISPN-2392
>                 URL: https://issues.jboss.org/browse/ISPN-2392
>             Project: Infinispan
>          Issue Type: Enhancement
>          Components: Locking and Concurrency
>    Affects Versions: 5.2.0.Beta1
>            Reporter: Thomas Fromm
>            Assignee: Mircea Markus
>
> Situation: REPL_SYNC cache, non transactional, locking isolation level NONE
> Problem: when multiple threads trying to write same key on multiple nodes, the operation ends up mostly in locking timeouts
> Mircea mentioned that the locking behaviour for non-tx caches could be optimized as well as for tx-caches or use the same mechanisms.
> (One single lock, independed number of owners)

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