[infinispan-issues] [JBoss JIRA] (ISPN-8954) StateReceiverImpl should request segments via an executor

StateReceiverImpl should request segments via an executor --------------------------------------------------------- Key: ISPN-8954 URL: https://issues.jboss.org/browse/ISPN-8954 Project: Infinispan Issue Type: Bug Components: Core Affects Versions: 9.2.0.Final Reporter: Ryan Emerson Assignee: Ryan Emerson Fix For: 9.3.0.Final, 9.2.1.Final Currently when requesting segments an InboundTransferTask is executed in the thread calling StateReceiver::getAllReplicasForSegment. The problem with this is that InboundTransferTask::requestSegments is a blocking RPC call, which due to the synchronization used by a SegmentRequest object means that it's not possible for a segment request to be cancelled while an InboundTransferTask::requestSegment call is being executed. Furthermore, this situation is exasperated by the fact that currently the transfer tasks are created using the state transfer timeout (defualt is 4 mins), so it's possible for the calling thread to be blocked for this amount of time. The solution is to utilise the StateTransferExecutor to process the InboundTransferTasks so that a segment request can be cancelled during a transfer request. Also, we should utilise the remaining time of the DefaultConflictManager::ReplicaSpliterator as the upper bound on the transfer tasks.