[jira] [Commented] (HADOOP-8054) NPE with RawLocalFileSystem

["Amareshwari Sriramadasu (Commented) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-8054?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13206796#comment-13206796 ] 

Amareshwari Sriramadasu commented on HADOOP-8054:
-------------------------------------------------

The issue was because of HADOOP-8013 and the following change:
{noformat}
@@ -77,7 +79,11 @@
    * @param conf the configuration
    */
   public void initialize(URI name, Configuration conf) throws IOException {
-    fs.initialize(name, conf);
+    super.initialize(name, conf);
+
{noformat}

Robert/Daryn, was this change required or is it by mistake?
FilterFileSystem uses the other contained file system as the basic file system and overrides all the methods of FileSystem with versions that pass all requests to the contained  file system. It does not use super class methods.

I will upload a patch undoing this change soon.

                
> NPE with RawLocalFileSystem
> ---------------------------
>
>                 Key: HADOOP-8054
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8054
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 0.23.1
>            Reporter: Amareshwari Sriramadasu
>            Priority: Critical
>
> While running Hive tests, I'm seeing the following exception with 0.23.1,
> {noformat}
> ava.lang.NullPointerException
>         at org.apache.hadoop.fs.FileSystem.getDefaultBlockSize(FileSystem.java:1901)
>         at org.apache.hadoop.fs.RawLocalFileSystem.getFileStatus(RawLocalFileSystem.java:447)
>         at org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:351)
>         at org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:351)
>         at org.apache.hadoop.fs.ProxyFileSystem.getFileStatus(ProxyFileSystem.java:247)
>         at org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:351)
>         at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1165)
>         at org.apache.hadoop.fs.FileUtil.checkDest(FileUtil.java:390)
>         at org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:242)
>         at org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:232)
> {noformat}
> Did not see this with 0.23.0, though.

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