aajisaka commented on a change in pull request #3793:
URL: https://github.com/apache/hadoop/pull/3793#discussion_r772141862
##########
File path:
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/metrics/TestSystemMetricsPublisherInBatch.java
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@@ -28,6 +28,10 @@
public class TestSystemMetricsPublisherInBatch extends
TestSystemMetricsPublisher {
+ private static ApplicationHistoryServer timelineServer;
+ private static TimelineServiceV1Publisher metricsPublisher;
+ private static TimelineStore store;
+
Review comment:
The variables can be local.
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