Hi Glusterfs Experts, We are testing glusterfs 3.7.0 tarball on our 10 Node glusterfs cluster. Each node has 36 dirves and please find the volume info below
Volume Name: vaulttest5 Type: Distributed-Disperse Volume ID: 68e082a6-9819-4885-856c-1510cd201bd9 Status: Started Number of Bricks: 36 x (8 + 2) = 360 Transport-type: tcp Bricks: Brick1: 10.1.2.1:/media/disk1 Brick2: 10.1.2.2:/media/disk1 Brick3: 10.1.2.3:/media/disk1 Brick4: 10.1.2.4:/media/disk1 Brick5: 10.1.2.5:/media/disk1 Brick6: 10.1.2.6:/media/disk1 Brick7: 10.1.2.7:/media/disk1 Brick8: 10.1.2.8:/media/disk1 Brick9: 10.1.2.9:/media/disk1 Brick10: 10.1.2.10:/media/disk1 Brick11: 10.1.2.1:/media/disk2 Brick12: 10.1.2.2:/media/disk2 Brick13: 10.1.2.3:/media/disk2 Brick14: 10.1.2.4:/media/disk2 Brick15: 10.1.2.5:/media/disk2 Brick16: 10.1.2.6:/media/disk2 Brick17: 10.1.2.7:/media/disk2 Brick18: 10.1.2.8:/media/disk2 Brick19: 10.1.2.9:/media/disk2 Brick20: 10.1.2.10:/media/disk2 ... .... Brick351: 10.1.2.1:/media/disk36 Brick352: 10.1.2.2:/media/disk36 Brick353: 10.1.2.3:/media/disk36 Brick354: 10.1.2.4:/media/disk36 Brick355: 10.1.2.5:/media/disk36 Brick356: 10.1.2.6:/media/disk36 Brick357: 10.1.2.7:/media/disk36 Brick358: 10.1.2.8:/media/disk36 Brick359: 10.1.2.9:/media/disk36 Brick360: 10.1.2.10:/media/disk36 Options Reconfigured: performance.readdir-ahead: on We did some performance testing and simulated the proactive self healing for Erasure coding. Disperse volume has been created across nodes. *Description of problem* I disconnected the *network of two nodes* and tried to write some video files and *glusterfs* *wrote the video files on balance 8 nodes perfectly*. I tried to download the uploaded file and it was downloaded perfectly. Then i enabled the network of two nodes, the pro active self healing mechanism worked perfectly and wrote the unavailable junk of data to the recently enabled node from the other 8 nodes. But when i tried to download the same file node, it showed Input/Output error. I couldn't download the file. I think there is an issue in pro active self healing. Also we tried the simulation with one node network failure. We faced same I/O error issue while downloading the file *Error while downloading file * root@master02:/home/admin# rsync -r --progress /mnt/gluster/file13_AN ./1/file13_AN-2 sending incremental file list file13_AN 3,342,355,597 100% 4.87MB/s 0:10:54 (xfr#1, to-chk=0/1) rsync: read errors mapping "/mnt/gluster/file13_AN": Input/output error (5) WARNING: file13_AN failed verification -- update discarded (will try again). root@master02:/home/admin# cp /mnt/gluster/file13_AN ./1/file13_AN-3 cp: error reading β/mnt/gluster/file13_ANβ: Input/output error cp: failed to extend β./1/file13_AN-3β: Input/output error We can't conclude the issue with glusterfs 3.7.0 or our glusterfs configuration. Any help would be greatly appreciated -- Cheers Backer
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