[infinispan-issues] [JBoss JIRA] (ISPN-2473) Forwarding for non-transactional write commands should be asynchronous

[Dan Berindei (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-2473?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dan Berindei reassigned ISPN-2473:
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    Assignee: Mircea Markus  (was: Dan Berindei)


Mircea, we've been talking about changing the locking scheme in non-tx caches in a way that would avoid these deadlocks. Please make this a dependency of the locking JIRA (and update the title/description if necessary).
                
> Forwarding for non-transactional write commands should be asynchronous
> ----------------------------------------------------------------------
>
>                 Key: ISPN-2473
>                 URL: https://issues.jboss.org/browse/ISPN-2473
>             Project: Infinispan
>          Issue Type: Sub-task
>          Components: State transfer
>    Affects Versions: 5.2.0.Beta3
>            Reporter: Dan Berindei
>            Assignee: Mircea Markus
>            Priority: Critical
>             Fix For: 5.2.0.CR1
>
>
> A write command keeps a lock on the originator while doing the RPC on the actual owners, so forwarding the command back to the originator synchronously leads to a deadlock.
> Keeping track of the real originator for forwarded commands could allow us to avoid the deadlock, but it would be too complicated. OTOH, non-tx caches don't guarantee consistency, so we could just do the forwarding asynchronously.

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