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https://issues.apache.org/jira/browse/HDFS-16923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17693047#comment-17693047
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ASF GitHub Bot commented on HDFS-16923:
---------------------------------------
ZanderXu commented on PR #5400:
URL: https://github.com/apache/hadoop/pull/5400#issuecomment-1442943465
@simbadzina Master, sorry for the late response.
> I think we also need to do the same thing for the block added in
getFileInfo() (null guard on stat), WDYT?
`stat instanceof HdfsLocatedFileStatus` will return false if the stat is
null, so there is no bugs in getFileInfo().
> The getListing RPC will throw NPE if the path does not exist
> ------------------------------------------------------------
>
> Key: HDFS-16923
> URL: https://issues.apache.org/jira/browse/HDFS-16923
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: ZanderXu
> Assignee: ZanderXu
> Priority: Major
> Labels: pull-request-available
>
> The getListing RPC will throw NPE if the path does not exist. And the stack
> as bellow:
> {code:java}
> org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.ipc.RemoteException):
> org.apache.hadoop.ipc.RemoteException(java.lang.NullPointerException):
> java.lang.NullPointerException
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getListing(FSNamesystem.java:4195)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getListing(NameNodeRpcServer.java:1421)
> at
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getListing(ClientNamenodeProtocolServerSideTranslatorPB.java:783)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine2$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine2.java:622)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine2$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine2.java:590)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine2$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine2.java:574)
> {code}
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