[HADOOP-10165] TestMetricsSystemImpl#testMultiThreadedPublish occasionally fails

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Duplicate
• Assignee: Unassigned
• Reporter: Ted Yu
• Created: 15/Dec/13 15:07
• Updated: 16/Dec/13 02:42
• Resolved: 16/Dec/13 02:42

Description

From https://builds.apache.org/job/Hadoop-Common-trunk/982/testReport/junit/org.apache.hadoop.metrics2.impl/TestMetricsSystemImpl/testMultiThreadedPublish/ :

Error Message

Passed
Passed
Metric not collected!
Metric not collected!
Metric not collected!
Metric not collected!
Metric not collected!
Metric not collected!
Metric not collected!
Passed
Stacktrace

java.lang.AssertionError: Passed
Passed
Metric not collected!
Metric not collected!
Metric not collected!
Metric not collected!
Metric not collected!
Metric not collected!
Metric not collected!
Passed
	at org.junit.Assert.fail(Assert.java:93)
	at org.junit.Assert.assertTrue(Assert.java:43)
	at org.apache.hadoop.metrics2.impl.TestMetricsSystemImpl.testMultiThreadedPublish(TestMetricsSystemImpl.java:233)
Standard Output

2013-12-15 09:14:49,144 INFO  impl.MetricsConfig (MetricsConfig.java:loadFirst(111)) - loaded properties from hadoop-metrics2-test.properties
2013-12-15 09:14:49,146 INFO  impl.MetricsSystemImpl (MetricsSystemImpl.java:startTimer(341)) - Scheduled snapshot period at 80 second(s).
2013-12-15 09:14:49,146 INFO  impl.MetricsSystemImpl (MetricsSystemImpl.java:start(183)) - Test metrics system started
2013-12-15 09:14:49,147 INFO  impl.MetricsSinkAdapter (MetricsSinkAdapter.java:start(190)) - Sink Collector started
2013-12-15 09:14:49,147 INFO  impl.MetricsSystemImpl (MetricsSystemImpl.java:registerSink(275)) - Registered sink Collector

Issue Links

• is duplicated by: HADOOP-10062 race condition in MetricsSystemImpl#publishMetricsNow that causes incorrect results