[Gluster-devel] [Gluster-users] Impact of force option in remove-brick

[Gaurav Garg]

>> I just want to know what is the difference in the following scenario: 

1. remove-brick without the force option 
2. remove-brick with the force option 


remove-brick without force option will perform task based on your option,
for eg. remove-brick start option will start migration of file from given
remove-brick to other available bricks in the cluster. you can check status
of this remove-brick task by issuing remove-brick status command.

But remove-brick with force option will just forcefully remove brick from the cluster.
It will result in data loss in case of distributed volume, because it will not migrate file
from given remove-brick to other available bricks in the cluster. In case of replicate volume
you might not have problem by doing remove-brick force because later on after adding brick you
can issue heal command and migrate file from first replica set to this newly added brick.

Thanks,

~Gaurav

----- Original Message -----
From: "ABHISHEK PALIWAL" <abhishpaliwal at gmail.com>
To: gluster-users at gluster.org, gluster-devel at gluster.org
Sent: Tuesday, March 22, 2016 11:35:52 AM
Subject: [Gluster-users] Impact of force option in remove-brick

Hi Team, 

I have the following scenario: 

1. I have one replica 2 volume in which two brick are available. 
2. in such permutation and combination I got the UUID of peers mismatch. 
3. Because of UUID mismatch when I tried to remove brick on the second board I am getting the Incorrect Brick failure. 

Now, I have the question if I am using the remove-brick command with the 'force' option it means it should remove the brick in any situation either the brick is available or its UUID is mismatch. 

I just want to know what is the difference in the following scenario: 

1. remove-brick without the force option 
2. remove-brick with the force option 


Regards 
Abhishek 

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