[HDDS-754] VolumeInfo#getScmUsed throws NPE

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Fix Version/s: 0.3.0, 0.4.0
• Component/s: Ozone Datanode
• Target Version/s: 0.3.0
• Assignee: Hanisha Koneru
• Reporter: Mukul Kumar Singh
• Created: 29/Oct/18 19:30
• Updated: 31/Oct/18 21:18
• Resolved: 31/Oct/18 02:29

Description

The failure can be seen at the following jenkins run

https://builds.apache.org/job/PreCommit-HDDS-Build/1540/testReport/org.apache.hadoop.hdds.scm.pipeline/TestNodeFailure/testPipelineFail/

2018-10-29 13:44:11,984 WARN  concurrent.ExecutorHelper (ExecutorHelper.java:logThrowableFromAfterExecute(50)) - Execution exception when running task in Datanode ReportManager Thread - 3
2018-10-29 13:44:11,984 WARN  concurrent.ExecutorHelper (ExecutorHelper.java:logThrowableFromAfterExecute(63)) - Caught exception in thread Datanode ReportManager Thread - 3: 
java.lang.NullPointerException
	at org.apache.hadoop.ozone.container.common.volume.VolumeInfo.getScmUsed(VolumeInfo.java:107)
	at org.apache.hadoop.ozone.container.common.volume.VolumeSet.getNodeReport(VolumeSet.java:379)
	at org.apache.hadoop.ozone.container.ozoneimpl.OzoneContainer.getNodeReport(OzoneContainer.java:225)
	at org.apache.hadoop.ozone.container.common.report.NodeReportPublisher.getReport(NodeReportPublisher.java:64)
	at org.apache.hadoop.ozone.container.common.report.NodeReportPublisher.getReport(NodeReportPublisher.java:39)
	at org.apache.hadoop.ozone.container.common.report.ReportPublisher.publishReport(ReportPublisher.java:86)
	at org.apache.hadoop.ozone.container.common.report.ReportPublisher.run(ReportPublisher.java:73)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)