[HDFS-6446] NFS: Different error messages for appending/writing data from read only mount

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 2.2.0
• Component/s: nfs
• Assignee: Brandon Li
• Reporter: Yesha Vora
• Created: 22/May/14 22:30
• Updated: 27/Feb/15 19:33
• Resolved: 27/Feb/15 19:32

Description

steps:
1) set dfs.nfs.exports.allowed.hosts = <nfs_client> ro
2) Restart nfs server
3) Append data on file present on hdfs from read only mount point
Append data

bash$ cat /tmp/tmp_10MB.txt >> /tmp/tmp_mnt/expected_data_stream
cat: write error: Input/output error

4) Write data from read only mount point
Copy data

bash$ cp /tmp/tmp_10MB.txt /tmp/tmp_mnt/tmp/
cp: cannot create regular file `/tmp/tmp_mnt/tmp/tmp_10MB.txt': Permission denied

Both operations are treated differently. Copying data returns valid error message: 'Permission denied' . Though append data does not return valid error message

Issue Links

• is duplicated by: HDFS-6411 nfs-hdfs-gateway mount raises I/O error and hangs when a unauthorized user attempts to access it