[jboss-user] [JBoss Cache: Core Edition] - Re: on child insert parent, child collection updated in DB b

[bstansberry@jboss.com]

To understand the locking discussion you'd need to have a look at the classes in https://svn.jboss.org/repos/jbosscache/core/trunk/src/main/java/org/jboss/cache/util/concurrent/locks/ particularly PerElementLockContainer.

The lock striping issue in general is that instead of having a lock per Fqn, there is a configurable number of shared locks, with Fqn mapping to a shared lock via a hash function.  This can introduce lock conflict problems.

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