[jboss-user] [JBossCache] - Re: lock acquisition failed - pessimistic locking - read_unc

[mircea.markus]

looks like the classic deadlock scenario:

Tx838 tries to acquire WL on /Indicatives/SAIL04035 - WL owned by Tx837
Tx837 tries to acquire WL on /Indicatives/SAIL04034 - WL owned by Tx838

If this is a frequently used cache accessed pattern, it worths trying optimistic locking (in the prev scenario, with optimistic locking, at least one transaction would had succeeded)

Take a look here for some information on the drivers behind optimistic locking: http://wiki.jboss.org/wiki/Wiki.jsp?page=OptimisticNodeLocking


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