[Gluster-users] Removing subvolume from dist/rep volume

[Dave Sherohman]

OK, I'm just careless.  Forgot to include "start" after the list of
bricks...

On Fri, Jun 28, 2019 at 04:03:40AM -0500, Dave Sherohman wrote:
> On Thu, Jun 27, 2019 at 12:17:10PM +0530, Nithya Balachandran wrote:
> > On Tue, 25 Jun 2019 at 15:26, Dave Sherohman <dave at sherohman.org> wrote:
> > > My objective is to remove nodes B and C entirely.
> > >
> > > First up is to pull their bricks from the volume:
> > >
> > > # gluster volume remove-brick myvol B:/data C:/data A:/arb1 start
> > > (wait for data to be migrated)
> > > # gluster volume remove-brick myvol B:/data C:/data A:/arb1 commit
> > >
> > >
> > There are some edge cases that may prevent a file from being migrated
> > during a remove-brick. Please do the following after this:
> > 
> >    1. Check the remove-brick status for any failures.  If there are any,
> >    check the rebalance log file for errors.
> >    2. Even if there are no failures, check the removed bricks to see if any
> >    files have not been migrated. If there are any, please check that they are
> >    valid files on the brick and copy them to the volume from the brick to the
> >    mount point.
> > 
> > The rest of the steps look good.
> 
> Apparently, they weren't quite right.  I tried it and it just gives me
> the usage notes in return.  Transcript of the commands and output is below.
> 
> Any insight on how I got the syntax wrong?
> 
> --- cut here ---
> root at merlin:/# gluster volume status
> Status of volume: palantir
> Gluster process                             TCP Port  RDMA Port  Online  Pid
> ------------------------------------------------------------------------------
> Brick saruman:/var/local/brick0/data        49153     0          Y       17995
> Brick gandalf:/var/local/brick0/data        49153     0          Y       9415 
> Brick merlin:/var/local/arbiter1/data       49170     0          Y       35034
> Brick azathoth:/var/local/brick0/data       49153     0          Y       25312
> Brick yog-sothoth:/var/local/brick0/data    49152     0          Y       10671
> Brick merlin:/var/local/arbiter2/data       49171     0          Y       35043
> Brick cthulhu:/var/local/brick0/data        49153     0          Y       21925
> Brick mordiggian:/var/local/brick0/data     49152     0          Y       12368
> Brick merlin:/var/local/arbiter3/data       49172     0          Y       35050
> Self-heal Daemon on localhost               N/A       N/A        Y       1209 
> Self-heal Daemon on saruman.lub.lu.se       N/A       N/A        Y       23253
> Self-heal Daemon on gandalf.lub.lu.se       N/A       N/A        Y       9542 
> Self-heal Daemon on mordiggian.lub.lu.se    N/A       N/A        Y       11016
> Self-heal Daemon on yog-sothoth.lub.lu.se   N/A       N/A        Y       8126 
> Self-heal Daemon on cthulhu.lub.lu.se       N/A       N/A        Y       30998
> Self-heal Daemon on azathoth.lub.lu.se      N/A       N/A        Y       34399
>  
> Task Status of Volume palantir
> ------------------------------------------------------------------------------
> Task                 : Rebalance           
> ID                   : e58bc091-5809-4364-af83-2b89bc5c7106
> Status               : completed           
>  
> root at merlin:/# gluster volume remove-brick palantir saruman:/var/local/brick0/data gandalf:/var/local/brick0/data merlin:/var/local/arbiter1/data
> 
> Usage:
> volume remove-brick <VOLNAME> [replica <COUNT>] <BRICK> ... <start|stop|status|commit|force>
> 
> root at merlin:/# gluster volume remove-brick palantir replica 3 arbiter 1 saruman:/var/local/brick0/data gandalf:/var/local/brick0/data merlin:/var/local/arbiter1/data
> 
> Usage:
> volume remove-brick <VOLNAME> [replica <COUNT>] <BRICK> ... <start|stop|status|commit|force>
> 
> root at merlin:/# gluster volume remove-brick palantir replica 3 saruman:/var/local/brick0/data gandalf:/var/local/brick0/data merlin:/var/local/arbiter1/data
> 
> Usage:
> volume remove-brick <VOLNAME> [replica <COUNT>] <BRICK> ... <start|stop|status|commit|force>
> --- cut here ---
> 
> -- 
> Dave Sherohman
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-- 
Dave Sherohman