Hi, baz-X-private and baz-Y-private, 2 newly probed peers, have issued the each 'gluster volume add-brick baz baz-{X|Y}-private:/mnt/brick' in very short period. Both the 'add-brick's have returned without "Add Brick successful" messages. After that, 'add-brick' returns with "Another operation is in progress, please retry after some time" on the both peers every time. How should I clear this situation ? Best, tomo