[Gluster-users] Difference between processes: shrinking volume and replacing faulty brick
Greene, Tami McFarlin
greenet at ornl.gov
Mon Apr 15 13:09:12 UTC 2019
We need to remove a server node from our configuration (distributed volume). There is more than enough space on the remaining bricks to accept the data attached to the failing server; we didn’t know if one process or the other would be significantly faster. We know shrinking the volume (remove-brick) rebalances as it moves the data; so moving 506G resuled in the rebalancing of 1.8T and took considerable time.
Reading the documentation, it seems that replacing a brick is simplying introducing an empty brick to accept the displaced data, but it is the exact same process: remove-brick.
Is there anyway to migrate the data without rebalancing at the same time and then rebalancing once all data has been moved? I know that is not ideal, but it would allow us to remove the problem server much quicker and resume production while rebalancing.
Tami McFarlin Greene
RF, Communications, and Intelligent Systems Group
Electrical and Electronics System Research Division
Oak Ridge National Laboratory
Bldg. 3500, Rm. A15
greenet at ornl.gov<mailto:greent at ornl.gov> (865) 643-0401
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