[HDFS-6456] NFS should throw error for invalid entry in dfs.nfs.exports.allowed.hosts

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.2.0
• Fix Version/s: 2.6.0
• Component/s: nfs
• Hadoop Flags: Reviewed
• Assignee: Abhiraj Butala
• Reporter: Yesha Vora
• Created: 28/May/14 18:08
• Updated: 01/Dec/14 03:11
• Resolved: 15/Jul/14 20:38

Description

Pass invalid entry in dfs.nfs.exports.allowed.hosts. Use - as separator between hostname and access permission

<property><name>dfs.nfs.exports.allowed.hosts</name><value>host1-rw</value></property>

This misconfiguration is not detected by NFS server. It does not print any error message. The host passed in this configuration is also not able to mount nfs. In conclusion, no node can mount the nfs with this value. A format check is required for this property. If the value of this property does not follow the format, an error should be thrown.

Issue Links

• is related to: HDFS-6455 NFS: Exception should be added in NFS log for invalid separator in nfs.exports.allowed.hosts
• relates to: HDFS-6459 Add function to refresh export table for NFS gateway