[infinispan-issues] [JBoss JIRA] (ISPN-1556) Ablity to test and acquire lock if available, without aborting the txn if not available

[Gary Brown (Created) (JIRA)]

Ablity to test and acquire lock if available, without aborting the txn if not available
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                 Key: ISPN-1556
                 URL: https://issues.jboss.org/browse/ISPN-1556
             Project: Infinispan
          Issue Type: Feature Request
    Affects Versions: 5.1.0.BETA2
         Environment: AS7.1.0.alpha2
            Reporter: Gary Brown
            Assignee: Manik Surtani


I have a system that performs a large number of tasks in a single transaction for efficiency. Some of those tasks access infinispan caches.

I found that occasionally I have been getting lock timeouts for the default 15 second period.

Lock contention is not a problem - but the impact of failing to obtain the lock results in the whole transaction being aborted, which aborts the work also carried out for potentially a large number of other tasks, resulting in all of the work being retried.

I was wondering if it would be possible to provide an alternative lock implementation the AdvancedCache that allowed a client app to test whether the lock was available and acquire it - returning 'true', but if the lock was not available, simply returning false, allowing the client code to make a decision about how to proceed.

In my case, I could then add the specific task to a retry queue, and move onto the next task, committing all of the work that had been successfully completed for the other tasks.


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