murblanc commented on a change in pull request #2101:
URL: https://github.com/apache/lucene-solr/pull/2101#discussion_r535506478
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File path:
solr/core/src/java/org/apache/solr/cluster/events/impl/ClusterEventProducerFactory.java
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@@ -128,13 +128,17 @@ public void added(ContainerPluginsRegistry.ApiInfo
plugin) {
ClusterEventListener listener = (ClusterEventListener) instance;
clusterEventProducer.registerListener(listener);
} else if (instance instanceof ClusterEventProducer) {
- // replace the existing impl
- if (cc.getClusterEventProducer() instanceof
DelegatingClusterEventProducer) {
- ((DelegatingClusterEventProducer) cc.getClusterEventProducer())
- .setDelegate((ClusterEventProducer) instance);
+ if (ClusterEventProducer.PLUGIN_NAME.equals(plugin.getInfo().name)) {
+ // replace the existing impl
+ if (cc.getClusterEventProducer() instanceof
DelegatingClusterEventProducer) {
+ ((DelegatingClusterEventProducer) cc.getClusterEventProducer())
+ .setDelegate((ClusterEventProducer) instance);
Review comment:
It seems we still have synchronization issues on access to
`DelegatingClusterEventProducer.delegate`, right? Might not be on this PR
though (and I might have it wrong because I don't fully understand this plugin
and events architecture) but in `DelegatingClusterEventProducer` I see non sync
access to `delegate` and I wonder...
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