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

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 Components: Remote protocols Affects Versions: 5.1.4.CR1 Reporter: Eugen Dück Assignee: Galder Zamarreño Labels: jdg, jdg6 Fix For: 5.2.0.Beta6, 5.2.0.Final 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, i.e. requests carrying 'If-Match' or any of the other 'If-*' preconditions, of PUT, POST, and DELETE requests.