Inserting into cache with indexing fails for XA transactions ------------------------------------------------------------ Key: ISPN-4569 URL: https://issues.jboss.org/browse/ISPN-4569 Project: Infinispan Issue Type: Bug Security Level: Public(Everyone can see) Components: Embedded Querying, Transactions Affects Versions: 7.0.0.Alpha5 Reporter: Radim Vansa Assignee: Dan Berindei If I setup XA transactions in {{ClusteredQueryDslConditionsTest}} using {code} cacheCfg.transaction().transactionMode(TransactionMode.TRANSACTIONAL).useSynchronization(false); {code} the test fails. The reason is in deadlock while updating {{ScopedKey}} in __cluster_registry_cache__ : It seems that on originator we create transaction with modified inserted key and the {{ScopedKey}} for inserted class, and send it in two prepare commands to the other node. In the {{ScopedKey}}-prepare, the lock is acquired, but the regular prepare on the other node does not see it (it is not committed yet) and also tries to update this {{ScopedKey}} in __cluster_registry_cache__ . This fails with lock timeout, as the commit is waiting on the regular prepare to finish.