[ https://issues.apache.org/jira/browse/ARTEMIS-1353?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
clebert suconic closed ARTEMIS-1353. ------------------------------------ > Replication packets can get out of order > ---------------------------------------- > > Key: ARTEMIS-1353 > URL: https://issues.apache.org/jira/browse/ARTEMIS-1353 > Project: ActiveMQ Artemis > Issue Type: Bug > Affects Versions: 2.2.0 > Reporter: Justin Bertram > Assignee: Justin Bertram > Fix For: 2.3.0 > > > {{ReplicationEndpoint}} my throw a {{NullPointerException}} during initial > synchronization. > The issue is caused by incorrect ordering of replication packets. The NPE > arises when {{ReplicationSyncFileMessage}} packets are sent before > {{ReplicationStartSyncMessage}} packets. > Incorrect ordering of replication packets may happen because of > {{useExecutor}} parameter in the {{sendReplicatePacket}} method. > {{ReplicationStartSyncMessage}} packets are sent as first, but they are sent > with {{useExecutor=true}}. Although {{ReplicationSyncFileMessage}} packets > are sent after {{ReplicationStartSyncMessage}} packets, they are sent with > {{useExecutor=false}}. So sending of {{ReplicationStartSyncMessage}} packets > is scheduled to executor and there is no guarantee when the task will be > executed, whereas {{ReplicationStartSyncMessage}} packets are sent > immediately. > ReplicatedFailoverTest#testTimeoutOnFailover would fail in a loop because of > this. -- This message was sent by Atlassian JIRA (v6.4.14#64029)