remove-brick in 3.4.0 seems removing wrong bricks, can someone help to review the environment/steps to see if I did anything stupid? setup - Ubuntu 12.04LTS on gfs11 and gfs12, with following packages from ppa, both nodes have 3 xfs partitions sdb1, sdc1, sdd1: ii glusterfs-client 3.4.0final-ubuntu1~precise1 clustered file-system (client package) ii glusterfs-common 3.4.0final-ubuntu1~precise1 GlusterFS common libraries and translator modules ii glusterfs-server 3.4.0final-ubuntu1~precise1 clustered file-system (server package) step to reproduce the problem: 1. create volume gfs_v0 in replica 2 with gfs11:/sdb1 and gfs12:/sdb1 2. add-brick gfs11:/sdc1 and gfs12:/sdc1 3. add-brick gfs11:/sdd1 and gfs12:/sdd1 4. rebalance to make files distributed to all three pair of disks 5. remove-brick gfs11:/sdd1 and gfs12:/sdd1 start, files on ***/sdc1*** are migrating out 6. remove-brick commit led to data loss in gfs_v0 If between step 5 and 6 I initiate a remove-brick targeting /sdc1, then after commit I would not lose anything since all data will be migrated back to /sdb1. -C.B.
