Ayush Saxena created HDFS-15426:
-----------------------------------
Summary: Fix ContentSummary for mount links in
ViewFileSystemOverloadScheme
Key: HDFS-15426
URL: https://issues.apache.org/jira/browse/HDFS-15426
Project: Hadoop HDFS
Issue Type: Bug
Components: viewfs, viewfsOverloadScheme
Reporter: Ayush Saxena
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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