Unfortunately yes, GlusterFS is very slow to resync. When it detects a file is out of sync it has two methods to resync.
1. Copy the entire file across – bandwidth intensive 2. Compare checksums of each block in the file and copy across blocks that don’t match. CPU intensive. Both methods are very slow for large files Sent from Mail for Windows 10 From: Fabrizio Cuseo Sent: Tuesday, 28 July 2015 8:33 PM To: [email protected] Subject: [PVE-User] GlusterFS slow resync Hello. I am testing a 2 nodes cluster with glusterFS. GlusterFS is configured with 4 (raid-5) 1Tbyte disk, so there are 2 bricks replicated (1 per server). I have a VM with a VirtualDisk qcow2 of 2,5Tbyte, and the file is now 950Gbyte. After rebooting one of the two nodes, glusterFS needs more than 12 hours to resync (the nodes are connected with a p2p infiniband 10Gbit card). Someone have similar problems ? Is GlusterFS not so usable for big VM's ? Regards, Fabrizio -- --- Fabrizio Cuseo - mailto:[email protected] Direzione Generale - Panservice InterNetWorking Servizi Professionali per Internet ed il Networking Panservice e' associata AIIP - RIPE Local Registry Phone: +39 0773 410020 - Fax: +39 0773 470219 http://www.panservice.it mailto:[email protected] Numero verde nazionale: 800 901492 _______________________________________________ pve-user mailing list [email protected] http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
_______________________________________________ pve-user mailing list [email protected] http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
