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Posted to hdfs-issues@hadoop.apache.org by "Uma Maheswara Rao G (Jira)" <ji...@apache.org> on 2020/06/21 21:10:00 UTC
[jira] [Commented] (HDFS-15426) Fix ContentSummary for mount links
in ViewFileSystemOverloadScheme
[ https://issues.apache.org/jira/browse/HDFS-15426?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17141577#comment-17141577 ]
Uma Maheswara Rao G commented on HDFS-15426:
--------------------------------------------
Hi [~ayushtkn], Thank you for filing the JIRA.
Does this issue coming only with ViewFileSystemOverloadScheme or ViewFileSystem class also?
I think may be same issue as in ViewFileSystem? HADOOP-17032 ?
Could you please validate if they are different? Thanks a lot, for your help Ayush.
> Fix ContentSummary for mount links in ViewFileSystemOverloadScheme
> ------------------------------------------------------------------
>
> Key: HDFS-15426
> URL: https://issues.apache.org/jira/browse/HDFS-15426
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: viewfs, viewfsOverloadScheme
> Reporter: Ayush Saxena
> Priority: Major
>
> Ex. Mount Table has only two entries. /dir/int
> getContentSummary on / throws :
> {noformat}
> java.io.IOException: Internal implementation error: expected file name to be / at org.apache.hadoop.fs.viewfs.ViewFileSystem$InternalDirOfViewFs.checkPathIsSlash(ViewFileSystem.java:1148)
> at org.apache.hadoop.fs.viewfs.ViewFileSystem$InternalDirOfViewFs.getFileStatus(ViewFileSystem.java:1215)
> at org.apache.hadoop.fs.FileSystem.getContentSummary(FileSystem.java:1788)
> at org.apache.hadoop.fs.FileSystem.getContentSummary(FileSystem.java:1799)
> at org.apache.hadoop.fs.viewfs.ViewFileSystem.getContentSummary(ViewFileSystem.java:892)
> {noformat}
> The getContentSummary on / gets /dir, /dir has isDirectory true, so again getContentSummary on /dir is called. But the filesystem is Internal View FS and expects the path to be / only
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