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https://issues.apache.org/jira/browse/HDFS-15370?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17113764#comment-17113764
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Srinivasu Majeti commented on HDFS-15370:
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Thank you [~umamaheswararao] for your quick confirmation.
So right now , i have two clarifications in this viewfs context:
# Do we support symlink creation only in this usecase of viewfs to actual
namespace ( which is actually targeting only directories really in the target
namespace ) through core-site.xml ? Or we can do it for files also ? Dont
remember if there is any other way to do it .
# So we get isSymlink() as true only for symlink_name (as configured in
fs.viewfs.mounttable.fsname.link./symlink_name=hdfs://namespace/target_dir)
though core-site customisation and no other hdfs cli or feature does it right ?
> listStatus and getFileStatus behave inconsistent in the case of ViewFs
> implementation for isDirectory
> -----------------------------------------------------------------------------------------------------
>
> Key: HDFS-15370
> URL: https://issues.apache.org/jira/browse/HDFS-15370
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs
> Affects Versions: 3.0.0, 3.1.0
> Reporter: Srinivasu Majeti
> Priority: Major
> Labels: viewfs
>
> listStatus implementation in ViewFs and getFileStatus does not return
> consistent values for an element on isDirectory value. listStatus returns
> isDirectory of all softlinks as false and getFileStatus returns isDirectory
> as true.
> {code:java}
> [hdfs@c3121-node2 ~]$ /usr/jdk64/jdk1.8.0_112/bin/java -cp `hadoop
> classpath`:./hdfs-append-1.0-SNAPSHOT.jar LauncherGetFileStatus "/"
> FileStatus of viewfs://c3121/testme21may isDirectory:false
> FileStatus of viewfs://c3121/tmp isDirectory:false
> FileStatus of viewfs://c3121/foo isDirectory:false
> FileStatus of viewfs://c3121/tmp21may isDirectory:false
> FileStatus of viewfs://c3121/testme isDirectory:false
> FileStatus of viewfs://c3121/testme2 isDirectory:false <--- returns false
> FileStatus of / isDirectory:true
> [hdfs@c3121-node2 ~]$ /usr/jdk64/jdk1.8.0_112/bin/java -cp `hadoop
> classpath`:./hdfs-append-1.0-SNAPSHOT.jar LauncherGetFileStatus /testme2
> FileStatus of viewfs://c3121/testme2/dist-copynativelibs.sh isDirectory:false
> FileStatus of viewfs://c3121/testme2/newfolder isDirectory:true
> FileStatus of /testme2 isDirectory:true <--- returns true
> [hdfs@c3121-node2 ~]$ {code}
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