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https://issues.jboss.org/browse/ISPN-1556?page=com.atlassian.jira.plugin....
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Galder Zamarreño updated ISPN-1556:
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Summary: An operation that fails but it's silent shouldn't abort the
transaction internally (was: Ability to test and acquire lock if available, without
aborting the txn if not available)
Issue Type: Bug (was: Feature Request)
Fix Version/s: 5.1.0.CR2
Priority: Critical (was: Major)
Imagine 2nd level cache use case. A put for external read that fails due to a concurrent
load of data in the database shouldn't force the transaction to rollback. The point of
put for external read is that with fail silently, it's assuming it can fail but
it's fine and should not have an impact in the transaction outcome.
An operation that fails but it's silent shouldn't abort the
transaction internally
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Key: ISPN-1556
URL:
https://issues.jboss.org/browse/ISPN-1556
Project: Infinispan
Issue Type: Bug
Affects Versions: 5.1.0.BETA2
Environment: AS7.1.0.alpha2
Reporter: Gary Brown
Assignee: Galder Zamarreño
Priority: Critical
Fix For: 5.1.0.CR2
Attachments: CacheTxStackTrace.log, Sample2Test.java, SampleTest.java,
serverISPNTrace.log.zip
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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