[jira] [Created] (HDFS-12985) NameNode crashes during restart after an OpenForWrite file present in the Snapshot got deleted

["Manoj Govindassamy (JIRA)" <ji...@apache.org>]

Manoj Govindassamy created HDFS-12985:
-----------------------------------------

             Summary: NameNode crashes during restart after an OpenForWrite file present in the Snapshot got deleted
                 Key: HDFS-12985
                 URL: https://issues.apache.org/jira/browse/HDFS-12985
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: hdfs
    Affects Versions: 2.8.0
            Reporter: Manoj Govindassamy
            Assignee: Manoj Govindassamy


NameNode crashes repeatedly with NPE at the startup when trying to find the total number of under construction blocks. This crash happens after an open file, which was also part of a snapshot gets deleted along with the snapshot.

{noformat}
java.lang.NullPointerException
	at org.apache.hadoop.hdfs.server.namenode.LeaseManager.getNumUnderConstructionBlocks(LeaseManager.java:144)
	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getCompleteBlocksTotal(FSNamesystem.java:4456)
	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startCommonServices(FSNamesystem.java:1158)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.startCommonServices(NameNode.java:825)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:751)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:968)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:947)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1674)
	at org.apache.hadoop.hdfs.MiniDFSCluster.restartNameNode(MiniDFSCluster.java:2110)
	at org.apache.hadoop.hdfs.MiniDFSCluster.restartNameNode(MiniDFSCluster.java:2075)
	at org.apache.hadoop.hdfs.server.namenode.snapshot.TestOpenFilesWithSnapshot.testSnapshotsForOpenFilesAndDeletion3(TestOpenFilesWithSnapshot.java:747)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.FailOnTimeout$StatementThread.run(FailOnTimeout.java:74)
{noformat}






--
This message was sent by Atlassian JIRA
(v6.4.14#64029)

---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-dev-unsubscribe@hadoop.apache.org
For additional commands, e-mail: hdfs-dev-help@hadoop.apache.org