[jira] [Created] (HDFS-10085) CLONE - Erasure Coding: DFS opening a non-existent file need to be handled properly

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

dragon created HDFS-10085:
-----------------------------

             Summary: CLONE - Erasure Coding: DFS opening a non-existent file need to be handled properly
                 Key: HDFS-10085
                 URL: https://issues.apache.org/jira/browse/HDFS-10085
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: dragon
            Assignee: Rakesh R
             Fix For: HDFS-7285


This jira to address bad exceptions when opening a non-existent file. It throws NPE as shown below:

{code}
java.lang.NullPointerException: null
	at org.apache.hadoop.hdfs.DFSClient.open(DFSClient.java:1184)
	at org.apache.hadoop.hdfs.DistributedFileSystem$3.doCall(DistributedFileSystem.java:307)
	at org.apache.hadoop.hdfs.DistributedFileSystem$3.doCall(DistributedFileSystem.java:303)
	at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
	at org.apache.hadoop.hdfs.DistributedFileSystem.open(DistributedFileSystem.java:303)
	at org.apache.hadoop.fs.FileSystem.open(FileSystem.java:767)
	at org.apache.hadoop.hdfs.TestDistributedFileSystem.testDFSClient(TestDistributedFileSystem.java:359)
	at org.apache.hadoop.hdfs.TestDistributedFileSystem.testAllWithNoXmlDefaults(TestDistributedFileSystem.java:666)
{code}



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