[
https://issues.apache.org/jira/browse/HDFS-13795?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Virajith Jalaparti updated HDFS-13795:
--------------------------------------
Description:
Namenode fails to stop due to NPE in In-memory alias map
{code:java}
java.lang.NullPointerException
at
org.apache.hadoop.hdfs.server.aliasmap.InMemoryLevelDBAliasMapServer.close(InMemoryLevelDBAliasMapServer.java:146)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.stop(NameNode.java:1042)
{code}
was:
Namenode fails to start due to NPE in In-memory alias map
```
java.lang.NullPointerException
at
org.apache.hadoop.hdfs.server.aliasmap.InMemoryLevelDBAliasMapServer.close(InMemoryLevelDBAliasMapServer.java:146)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.stop(NameNode.java:1042)
```
> Fix potential NPE in InMemoryLevelDBAliasMapServer
> --------------------------------------------------
>
> Key: HDFS-13795
> URL: https://issues.apache.org/jira/browse/HDFS-13795
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Virajith Jalaparti
> Assignee: Virajith Jalaparti
> Priority: Major
>
> Namenode fails to stop due to NPE in In-memory alias map
> {code:java}
> java.lang.NullPointerException
> at
> org.apache.hadoop.hdfs.server.aliasmap.InMemoryLevelDBAliasMapServer.close(InMemoryLevelDBAliasMapServer.java:146)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.stop(NameNode.java:1042)
> {code}
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