Implicit Cache Lock Release Failure

 Infinispan cache to run on a single node with PESSIMISTIC locking. The application is backed with Java EE and runs on the JBOSS application server. Therefore container manage EJB transaction is created using @Transaction annotation and the container is all responsible for commit and rollback created transaction. Code Structure looks like follow

structure as follows Transaction

@Transaction

public void processOrder(){

// validations

cache1.put(k,v1) // need to acquire lock

// do some action

}

if any exception found then mark rollback using sessionContext.setRollbackOnly(); inside finally block.

But under high load, if a certain cache key gets locked it will forever, and each subsequent attempt to lock the same key will result in a lock acquisition timeout exception as follow. This lock never releases and persists forever.

javax.ejb.EJBTransactionRolledbackException: ISPN000299: Unable to acquire lock after 25 seconds for key 51254 and requestor GlobalTx:local:9. Lock is held by GlobalTx:local:1

The server log file (server-1.log) also attached to this with Infinispan config xml