Niels, Thanks for your answer. Can you look at the du examples below. Right now I am concerned with gluster0:group0 and group1 They are not replicating properly. They are supposed to replicate across 3 of my 5 nodes. Not shown here are nodes 2 and 3. Thanks! root@node0:/data/brick1# du -h -d 2 382G ./group0/.glusterfs 8.0K ./group0/images 0 ./group0/template 0 ./group0/dump 382G ./group0 0 ./group1/.glusterfs 0 ./group1/images 0 ./group1/template 0 ./group1/dump 0 ./group1 382G . root@node1:/data/brick1# du -h -d 2 148G ./gluster/.glusterfs 4.0K ./gluster/images 0 ./gluster/template 0 ./gluster/dump 0 ./gluster/private 148G ./gluster 0 ./safe/images 0 ./safe/template 0 ./safe/dump 0 ./safe 314G ./group0/.glusterfs 4.0K ./group0/images 0 ./group0/template 0 ./group0/dump 314G ./group0 182G ./group1/.glusterfs 0 ./group1/images 0 ./group1/template 0 ./group1/dump 182G ./group1 643G . root@node4:/data/brick1# du -h -d 2 3.2T ./machines0/.glusterfs 0 ./machines0/images 0 ./machines0/template 76K ./machines0/dump 0 ./machines0/private 3.2T ./machines0 196G ./group1/.glusterfs 0 ./group1/images 0 ./group1/template 0 ./group1/dump 196G ./group1 255G ./group0/.glusterfs 4.0K ./group0/images 0 ./group0/template 0 ./group0/dump 255G ./group0 1.5T ./backups/.glusterfs 0 ./backups/images 0 ./backups/template 28K ./backups/dump 1.5T ./backups 5.1T . root@node4:/data/brick1# -----Original Message----- From: Niels de Vos [mailto:ndevos@xxxxxxxxxx] Sent: Tuesday, October 18, 2016 1:28 AM To: Cory Sanders <cory@xxxxxxxxxxxxxxxxxxxxxxxx> Cc: gluster-users@xxxxxxxxxxx Subject: Re: gluster0:group1 not matching up with mounted directory On Tue, Oct 18, 2016 at 04:57:29AM +0000, Cory Sanders wrote: > I have volumes set up like this: > gluster> volume info > > Volume Name: machines0 > Type: Distribute > Volume ID: f602dd45-ddab-4474-8308-d278768f1e00 > Status: Started > Number of Bricks: 1 > Transport-type: tcp > Bricks: > Brick1: gluster4:/data/brick1/machines0 > > Volume Name: group1 > Type: Distribute > Volume ID: cb64c8de-1f76-46c8-8136-8917b1618939 > Status: Started > Number of Bricks: 1 > Transport-type: tcp > Bricks: > Brick1: gluster1:/data/brick1/group1 > > Volume Name: backups > Type: Replicate > Volume ID: d7cb93c4-4626-46fd-b638-65fd244775ae > Status: Started > Number of Bricks: 1 x 2 = 2 > Transport-type: tcp > Bricks: > Brick1: gluster3:/data/brick1/backups > Brick2: gluster4:/data/brick1/backups > > Volume Name: group0 > Type: Distribute > Volume ID: 0c52b522-5b04-480c-a058-d863df9ee949 > Status: Started > Number of Bricks: 1 > Transport-type: tcp > Bricks: > Brick1: gluster0:/data/brick1/group0 > > My problem is that when I do a disk free, group1 is filled up: > > root@node0:~# df -h > Filesystem Size Used Avail Use% Mounted on > udev 10M 0 10M 0% /dev > tmpfs 3.2G 492K 3.2G 1% /run > /dev/mapper/pve-root 24G 12G 11G 52% / > tmpfs 5.0M 0 5.0M 0% /run/lock > tmpfs 6.3G 56M 6.3G 1% /run/shm > /dev/mapper/pve-data 48G 913M 48G 2% /var/lib/vz > /dev/sda1 495M 223M 248M 48% /boot > /dev/sdb1 740G 382G 359G 52% /data/brick1 > /dev/fuse 30M 64K 30M 1% /etc/pve > gluster0:group0 740G 382G 359G 52% /mnt/pve/group0 > 16.xx.xx.137:backups 1.9T 1.6T 233G 88% /mnt/pve/backups > node4:machines0 7.3T 5.1T 2.3T 70% /mnt/pve/machines0 > gluster0:group1 740G 643G 98G 87% /mnt/pve/group1 > gluster2:/var/lib/vz 1.7T 182G 1.5T 11% /mnt/pve/node2local > > When I do a du -h in the respective directories, this is what I get. > They don't match up with what a df -h shows. Gluster0:group0 shows > the right amount of disk free, but gluster0:group1 is too fat and does > not correspond to what is in /mnt/pve/group1 du and df work a little different: - du: crawl the directory structure and calculate the size - df: call the statfs() function that resturns information directly from the (superblock of the) filesystem This means, that all 'df' calls are routed to the bricks that are used for the Gluster volume. Those bricks then call statfs() on behalf of the Gluster client (fuse mountpoint), and the Gluster client uses the values returned by the bricks to calculate the 'fake' output for 'df'. Now, on your environment you seem to have the RAID1 filesystem mounted on /data/brick1 (/dev/sdb1 in the above 'df' output). All of the bricks are also located under /data/brick1/<volume>. This means that all 'df' commands will execute statfs() on the same filesystem hosting all of the bricks. Because statfs() returns the statistics over the whole filesystem (/data/brick1), the used and available size of /data/brick1 will be used in the calculations by the Gluster client to return the statistics to 'df'. With this understanding, you should be able to verify the size of the filesystems used for the bricks, and combine them per Gluster volume. Any of the /data/brick1 filesystems that host multiple bricks will likely have an 'unexpected' difference in available/used size. HTH, Niels _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://www.gluster.org/mailman/listinfo/gluster-users
