michaelandrepearce commented on a change in pull request #2913: ARTEMIS-2571
Remove synchronization of ActiveMQServerImpl#getSessions()
URL: https://github.com/apache/activemq-artemis/pull/2913#discussion_r356173665
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File path:
artemis-server/src/main/java/org/apache/activemq/artemis/core/server/impl/ActiveMQServerImpl.java
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@@ -294,7 +294,7 @@
private FileStoreMonitor fileStoreMonitor;
- private final Map<String, ServerSession> sessions = new
ConcurrentHashMap<>();
+ private final ConcurrentMap<String, ServerSession> sessions = new
ConcurrentHashMap<>();
Review comment:
So our concerns are this is in core. Its an un-proven optimization, that
without any proven hot path benefit brings alot of risk, as small changes like
this have previously introduced unexpected issues at first not obvious
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