On 4 November 2015 at 20:45, Krutika Dhananjay <[email protected]> wrote:
> The block count in the xattr doesn't amount to 16GB of used space. > > Is this consistently reproducible? If it is, then could you share the > steps? That would help me recreate this in-house and debug it. > 100% of the time for me, and all I have to do is copy or create a file on the gluster mount. My bricks are all sitting on ZFS filesystems with compression enabled, maube that is confusing things? I'll try a test with compression off. In the mean time here are the steps and results for a from scract volume I created (datastore3) with just one file. root@vnb:/mnt/pve/gluster3# gluster volume info Volume Name: datastore3 Type: Replicate Volume ID: 96acb55b-b3c2-4940-b642-221dd1b88617 Status: Started Number of Bricks: 1 x 3 = 3 Transport-type: tcp Bricks: Brick1: vna.proxmox.softlog:/zfs_vm/datastore3 Brick2: vnb.proxmox.softlog:/glusterdata/datastore3 Brick3: vng.proxmox.softlog:/glusterdata/datastore3 Options Reconfigured: performance.io-thread-count: 32 performance.write-behind-window-size: 128MB performance.cache-size: 1GB performance.cache-refresh-timeout: 4 nfs.disable: on nfs.addr-namelookup: off nfs.enable-ino32: on performance.write-behind: on cluster.self-heal-window-size: 256 server.event-threads: 4 client.event-threads: 4 cluster.quorum-type: auto features.shard-block-size: 512MB features.shard: on performance.readdir-ahead: on cluster.server-quorum-ratio: 51% root@vnb:/mnt/pve/gluster3# dd if=/dev/sda of=test.bin bs=1MB count=8192 8192+0 records in 8192+0 records out 8192000000 bytes (8.2 GB) copied, 79.5335 s, 1 ls -l total 289925 drwxr-xr-x 2 root root 2 Nov 4 22:24 images -rw-r--r-- 1 root root 72357920896 Nov 4 22:26 test.bin ls -lh total 284M drwxr-xr-x 2 root root 2 Nov 4 22:24 images -rw-r--r-- 1 root root 68G Nov 4 22:26 test.bin du test.bin 289924 test.bin du /glusterdata/datastore3/.shard/ 2231508 /glusterdata/datastore3/.shard/ getfattr -d -m . -e hex /glusterdata/datastore3/test.bin getfattr: Removing leading '/' from absolute path names # file: glusterdata/datastore3/test.bin trusted.afr.dirty=0x000000000000000000000000 trusted.bit-rot.version=0x02000000000000005639f915000f2b76 trusted.gfid=0xa1ecf4c8ab0a4ecc8bd8d4f3affe0bfb trusted.glusterfs.shard.block-size=0x0000000020000000 trusted.glusterfs.shard.file-size=0x00000010d8de40800000000000000000000000000008d9080000000000000000 -- Lindsay
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