Description of problem:

Glusterfind create creates a session, and distributes the public key to all its peers. That is used in the subsequent 'glusterfind pre' command to find the modified files at brick level of every node.BUT the 'glusterfind pre' command prompts the user for the password of peer, which it is otherwise expected to take care of, internally.

Version-Release number of selected component (if applicable):

3.7 Upstream build glusterfs-server-3.7dev-0.777.git2308c07.el6.x86_64

How reproducible: Always

Steps to Reproduce:

1. Have a 2 node cluster, and a 2*2 volume 'nash' 
2. Execute the glusterfind create command to create a session for the volume 'nash'
3. Execute the glusterfind pre command to start the brick crawl to get the changed list of files

Actual results: 

Step 3 prompts the user for password of peer. And it does this multiple times, even after giving the correct password.

Expected results: 

Step 3 should not prompt the user for password. Step 2 should have taken care of setting up password less ssh from node it is run, to all its peers.

Additional info:

Was not able to reproduce this in my older setup, after doing a ssh-copyid manually. Created a brand new setup and re did the steps to recreate the issue. The setup is in the same state if you would want to have a look.
Node1: 10.70.43.48
Node2: 10.70.42.147
Authentication: root/redhat

I do see the public key copied to /root/.ssh/authorised_keys in the peer. Pasted below are the detailed logs..

[root@dhcp43-48 glusterd]# gluster v i
 
Volume Name: nash
Type: Distributed-Replicate
Volume ID: cd66179e-6fda-49cf-b40f-be930bc01f6f
Status: Started
Number of Bricks: 2 x 2 = 4
Transport-type: tcp
Bricks:
Brick1: 10.70.43.48:/rhs/brick1/dd
Brick2: 10.70.42.147:/rhs/brick1/dd
Brick3: 10.70.43.48:/rhs/brick2/dd
Brick4: 10.70.42.147:/rhs/brick2/dd
Options Reconfigured:
changelog.changelog: on
storage.build-pgfid: on
[root@dhcp43-48 glusterd]#
[root@dhcp43-48 glusterd]# ls
geo-replication  glusterd.info  glusterfind  glustershd  groups  hooks  nfs  options  peers  quotad  snaps  vols
[root@dhcp43-48 glusterd]# ls glusterfind/
[root@dhcp43-48 glusterd]# glusterfind create sess nash
[root@dhcp43-48 glusterd]# 
[root@dhcp43-48 glusterd]# ls
geo-replication  glusterfind             glusterfind.secret.pem.pub  groups  nfs      peers   snaps
glusterd.info    glusterfind.secret.pem  glustershd                  hooks   options  quotad  vols
[root@dhcp43-48 glusterd]# cat glusterfind.secret.pem.pub
ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAvniql8bDymri+Wxr2BI41zqQ1sULDSewGWIR3mNcYEpHTU6eMhgG3csRUZx66LZwjQ/irDHPljltog6CNiPbqoqP0fty23AUBcLUVluinl6q3SCVQvqv1DXZuEG3aNBsJUoRjL9CEGak/aE0G7tvAZBOjOCWLXZIxoYmOsaBszxJdX4ei2COhHlouEch2pQMx3DKLKv5t8gFhmAc4SLI5AytiVsODyCqg9oGinjBEKyPgvDnympmT5lxjpo6P9ww0UqFbECNmYe4a3/XHY5Dp/8wfJH9Vf74wM3pxJ62TUOxqTAkRQmuxNnf3HcZCLaPlKCar8NuW0L0H2AQ+5UR6w== root.eng.blr.redhat.com
[root@dhcp43-48 glusterd]# 
[root@dhcp43-48 glusterd]#
[root@dhcp43-48 glusterd]# glusterfind pre sess nash /root/out.txt
10.70.43.48 - Change detection failed
10.70.43.48 - Change detection failed
The authenticity of host '10.70.42.147 (10.70.42.147)' can't be established.
RSA key fingerprint is 8b:74:e8:f6:9e:55:9b:76:d0:78:28:08:b7:24:97:26.
Are you sure you want to continue connecting (yes/no)? The authenticity of host '10.70.42.147 (10.70.42.147)' can't be established.
RSA key fingerprint is 8b:74:e8:f6:9e:55:9b:76:d0:78:28:08:b7:24:97:26.
Are you sure you want to continue connecting (yes/no)? yes
Please type 'yes' or 'no': yes
root.42.147's password: Please type 'yes' or 'no': 
root.42.147's password: 
Please type 'yes' or 'no': 
root.42.147's password: 
Please type 'yes' or 'no': 
10.70.42.147 - Change detection failed


10.70.42.147 - Change detection failed
[root@dhcp43-48 glusterd]# cat glusterfind.secret.pem.pub
ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAvniql8bDymri+Wxr2BI41zqQ1sULDSewGWIR3mNcYEpHTU6eMhgG3csRUZx66LZwjQ/irDHPljltog6CNiPbqoqP0fty23AUBcLUVluinl6q3SCVQvqv1DXZuEG3aNBsJUoRjL9CEGak/aE0G7tvAZBOjOCWLXZIxoYmOsaBszxJdX4ei2COhHlouEch2pQMx3DKLKv5t8gFhmAc4SLI5AytiVsODyCqg9oGinjBEKyPgvDnympmT5lxjpo6P9ww0UqFbECNmYe4a3/XHY5Dp/8wfJH9Vf74wM3pxJ62TUOxqTAkRQmuxNnf3HcZCLaPlKCar8NuW0L0H2AQ+5UR6w== root.eng.blr.redhat.com
[root@dhcp43-48 glusterd]#
[root@dhcp43-48 glusterd]# glusterfind pre sess nash /root/out.txt --change-detector=brickfind
root.42.147's password: root.42.147's password: 
root.42.147's password: 
root.42.147's password: 


root.42.147's password: 
root.42.147's password: root.42.147's password: 


root.42.147's password: 
Generated output file /root/out.txt
[root@dhcp43-48 glusterd]# cat /root/out.txt 
[root@dhcp43-48 glusterd]# ls -l /root/out.txt 
-rw-r--r--. 1 root root 0 Mar 27 22:48 /root/out.txt
[root@dhcp43-48 glusterd]# 
[root@dhcp43-48 glusterd]# 
[root@dhcp43-48 glusterd]# ssh 10.70.42.147
root.42.147's password: 

[root@dhcp43-48 glusterd]#