Github user franz1981 commented on a diff in the pull request:
https://github.com/apache/activemq-artemis/pull/2090#discussion_r188532813
--- Diff:
artemis-protocols/artemis-openwire-protocol/src/main/java/org/apache/activemq/artemis/core/protocol/openwire/amq/AMQSession.java
---
@@ -95,6 +97,8 @@
private final SimpleString clientId;
+ private final Set<Long> rollbackedIds = new ConcurrentHashSet<>();
--- End diff --
It could belong to `AMQConsumer` instead of here? That will make it less
contended, because owned exclusively by the consumer
---
