Busy wait in BaseStateTransferManagerImpl#waitForStateTransferToStart --------------------------------------------------------------------- Key: ISPN-2602 URL: https://issues.jboss.org/browse/ISPN-2602 Project: Infinispan Issue Type: Bug Components: State transfer Affects Versions: 5.1.4.FINAL Reporter: Dennis Reed Assignee: Mircea Markus Priority: Minor Fix For: 6.0.0.Final BaseStateTransferManagerImpl#waitForStateTransferToStart does a busy wait, sleeping for 10ms in between checking the condition, instead of synchronizing using condition variables (or the equivalent). This can cause excessive CPU load if a lot of threads are waiting (we have seen 300 threads waiting in this loop at once).