[jira] [Updated] (HDFS-13539) DFSInputStream NPE when reportCheckSumFailure

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

     [ https://issues.apache.org/jira/browse/HDFS-13539?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xiao Chen updated HDFS-13539:
-----------------------------
    Status: Patch Available  (was: Open)

> DFSInputStream NPE when reportCheckSumFailure
> ---------------------------------------------
>
>                 Key: HDFS-13539
>                 URL: https://issues.apache.org/jira/browse/HDFS-13539
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Xiao Chen
>            Assignee: Xiao Chen
>            Priority: Major
>         Attachments: HDFS-13539.01.patch
>
>
> We have seem the following exception with DFSStripedInputStream.
> {noformat}
> readDirect: FSDataInputStream#read error:
> NullPointerException: java.lang.NullPointerException
>         at org.apache.hadoop.hdfs.DFSStripedInputStream.readWithStrategy(DFSStripedInputStream.java:402)
>         at org.apache.hadoop.hdfs.DFSInputStream.read(DFSInputStream.java:831)
>         at org.apache.hadoop.fs.FSDataInputStream.read(FSDataInputStream.java:147)
> {noformat}
> Line 402 is {{reportCheckSumFailure}}, and {{currentLocatedBlock}} is the only possible null object.
> Original exception is masked by the NPE.



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