[infinispan-issues] [JBoss JIRA] (ISPN-2008) Optimistic concurrency in REST server is not using atomic operations

[Eugen Dück (JIRA)]

Eugen Dück created ISPN-2008:
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             Summary: Optimistic concurrency in REST server is not using atomic operations
                 Key: ISPN-2008
                 URL: https://issues.jboss.org/browse/ISPN-2008
             Project: Infinispan
          Issue Type: Bug
    Affects Versions: 5.1.4.CR1
            Reporter: Eugen Dück
            Assignee: Manik Surtani


The REST server's optimistic currency control is not atomic. The sequence in e.g. a PUT request goes like this:

* request.evaluatePreconditions
* cache.put (if preconditions met)

Which is not inside any lock (that would make it pessimistic, anyway), in other words, a race condition.

This applies to the optimistic variants of PUT, POST, and DELETE.

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