Index: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/event/AsyncDispatcher.java IDEA additional info: Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP <+>UTF-8 =================================================================== --- hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/event/AsyncDispatcher.java (date 1504197301000) +++ hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/event/AsyncDispatcher.java (date 1504225205000) @@ -123,6 +123,11 @@ return; } if (event != null) { + try { + Thread.sleep(200); + } catch (InterruptedException e) { + throw new RuntimeException("Flaky test interrupted", e); + } dispatch(event); } }