[HDFS-13817] RBF: create mount point with RANDOM policy and with 2 Nameservices doesn't work properly

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Not A Problem
• Component/s: federation
• Labels: RBF
• Assignee: Ramkumar Ramalingam
• Reporter: Harshakiran Reddy
• Created: 10/Aug/18 09:31
• Updated: 21/Jan/19 05:45
• Resolved: 21/Jan/19 05:45

Description

Scenario:-

1. Create a mount point with RANDOM policy and with 2 Nameservices .
2. List the target mount path of the Global path.

Actual Output:
===========
ls: `/apps5': No such file or directory

Expected Output:
=============

if the files are availabel list those files or if it's emtpy it will disply nothing

 
bin> ./hdfs dfsrouteradmin -add /apps5 hacluster,ns2 /tmp10 -order RANDOM -owner securedn -group hadoop
Successfully added mount point /apps5
bin> ./hdfs dfs -ls /apps5
ls: `/apps5': No such file or directory
bin> ./hdfs dfs -ls /apps3
Found 2 items
drwxrwxrwx   - user group 0 2018-08-09 19:55 /apps3/apps1
-rw-r--r--   3   - user group  4 2018-08-10 11:55 /apps3/ttt
 

please refer the bellow image for mount inofrmation

/apps3 tagged with HASH policy
/apps5 tagged with RANDOM policy

/bin> ./hdfs dfsrouteradmin -ls

Mount Table Entries:
Source                    Destinations              Owner                     Group                     Mode                      Quota/Usage

/apps3                    hacluster->/tmp3,ns2->/tmp4 securedn                  users                     rwxr-xr-x                 [NsQuota: -/-, SsQuota: -/-]

/apps5                    hacluster->/tmp5,ns2->/tmp5 securedn                  users                     rwxr-xr-x                 [NsQuota: -/-, SsQuota: -/-]

Issue Links

• is related to: HDFS-13224 RBF: Resolvers to support mount points across multiple subclusters