Gluster 3.7.5, gluster repos, on proxmox (debian 8) I have an issue with VM images (qcow2) being corrupted.
- gluster replica 3, shards on, shard size = 256MB - Gluster nodes are all also VM host nodes - VM image mounted from qemu via gfapi To reproduce - Start VM - live migrate it to another node - VM will rapidly become unresponsive and have to be stopped - attempting to restart the vm results in a "qcow2: Image is corrupt; cannot be opened read/write" error. I have never seen this before. 100% reproducible with shards on, never happens with shards off. I don't think this happens when using NFS to access the shard volume, I suspect because with NFS it is still accessing the one node, whereas with gfapi it's handed off to the node the VM is running on. -- Lindsay
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