diff --git hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/logaggregation/TestLogAggregationService.java hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/logaggregation/TestLogAggregationService.java index cea71fa..4d70c76 100644 --- hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/logaggregation/TestLogAggregationService.java +++ hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/logaggregation/TestLogAggregationService.java @@ -1352,6 +1352,10 @@ private void testLogAggregationService(boolean retentionSizeLimitation) String[] logFiles1 = new String[] { "stdout", "stderr", "syslog" }; writeContainerLogs(appLogDir, container, logFiles1); + // Make sure AppLogAggregatorImpl thread is started before we call + // AppLogAggregatorImpl.doLogAggregationOutOfBand() + Thread.sleep(2000); + // Do log aggregation AppLogAggregatorImpl aggregator = (AppLogAggregatorImpl) logAggregationService.getAppLogAggregators()