zhangmeng916 commented on a change in pull request #1157:
URL: https://github.com/apache/helix/pull/1157#discussion_r457015475
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File path:
helix-core/src/test/java/org/apache/helix/controller/stages/TestRebalancePipeline.java
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@@ -61,8 +62,9 @@ public void testDuplicateMsg() {
HelixManager manager = new DummyClusterManager(clusterName, accessor);
ClusterEvent event = new ClusterEvent(ClusterEventType.Unknown);
event.addAttribute(AttributeName.helixmanager.name(), manager);
- event.addAttribute(AttributeName.ControllerDataProvider.name(),
- new ResourceControllerDataProvider());
+ ResourceControllerDataProvider dataCache = new
ResourceControllerDataProvider();
+ dataCache.setAsyncTasksThreadPool(Executors.newSingleThreadExecutor());
Review comment:
Sure. I'll add. The reason I found this issue is that when I changed the
session Id to be a valid one, the test actually failed. And debugging, I found
it's due to the Executor was not set up, and thus the periodically clean up job
for pending messages throw an NPE, which caused the pipeline to stop.
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