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https://issues.apache.org/jira/browse/HDFS-12985?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Manoj Govindassamy updated HDFS-12985:
--------------------------------------
Description:
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}
Failed to start namenode.
java.lang.NullPointerException
at
org.apache.hadoop.hdfs.server.namenode.LeaseManager.getNumUnderConstructionBlocks(LeaseManager.java:146)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getCompleteBlocksTotal(FSNamesystem.java:6537)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startCommonServices(FSNamesystem.java:1232)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.startCommonServices(NameNode.java:706)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:692)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:844)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:823)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1547)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1615)
{noformat}
was:
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}
> 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}
> Failed to start namenode.
> java.lang.NullPointerException
> at
> org.apache.hadoop.hdfs.server.namenode.LeaseManager.getNumUnderConstructionBlocks(LeaseManager.java:146)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getCompleteBlocksTotal(FSNamesystem.java:6537)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startCommonServices(FSNamesystem.java:1232)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.startCommonServices(NameNode.java:706)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:692)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:844)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:823)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1547)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1615)
> {noformat}
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