Have a look at this: http://staged-gluster-docs.readthedocs.io/en/release3.7.0beta1/Features/qemu-integration/ It may be a UID / GID issue? Setting ownership on the volume Set the ownership of qemu:qemu on to the volume gluster volume set <vol-name> storage.owner-uid 107 gluster volume set <vol-name> storage.owner-gid 107 Have a run through that DOC and make sure everything is configured properly. -b ----- Original Message ----- > From: "Alexey Zakurin" <a@xxxxxxxxxx> > To: gluster-users@xxxxxxxxxxx > Sent: Wednesday, August 9, 2017 7:53:00 AM > Subject: Gluster performance with VM's > > Hi, community > > Please, help me with my trouble. > > I have 2 Gluster nodes, with 2 bricks on each. > Configuration: > Node1 brick1 replicated on Node0 brick0 > Node0 brick1 replicated on Node1 brick0 > > Volume Name: gm0 > Type: Distributed-Replicate > Volume ID: 5e55f511-8a50-46e4-aa2f-5d4f73c859cf > Status: Started > Snapshot Count: 0 > Number of Bricks: 2 x 2 = 4 > Transport-type: tcp > Bricks: > Brick1: gl1:/mnt/brick1/gm0 > Brick2: gl0:/mnt/brick0/gm0 > Brick3: gl0:/mnt/brick1/gm0 > Brick4: gl1:/mnt/brick0/gm0 > Options Reconfigured: > cluster.rebal-throttle: aggressive > performance.cache-refresh-timeout: 4 > performance.cache-max-file-size: 10MB > performance.client-io-threads: on > diagnostics.client-log-level: WARNING > diagnostics.brick-log-level: WARNING > performance.write-behind-window-size: 4MB > features.scrub: Active > features.bitrot: on > cluster.readdir-optimize: on > server.event-threads: 16 > client.event-threads: 16 > cluster.lookup-optimize: on > server.allow-insecure: on > performance.read-ahead: disable > performance.readdir-ahead: off > performance.io-thread-count: 64 > performance.cache-size: 2GB > diagnostics.count-fop-hits: on > diagnostics.latency-measurement: on > nfs.disable: on > transport.address-family: inet > cluster.self-heal-daemon: enable > cluster.server-quorum-ratio: 51% > > Each brick is software RAID10, that contains 6 disks. > > 20Gb round-robin bonding between servers and clients - one network. > > On storage, I have VM's images. > VM's run on 3 clients, Xen Hypervisor. > > One of VM's is the FTP-server, that contains large numbers of archives. > > Problem. > When I try to upload on FTP-server large file (50-60Gb), other VM's was > throttled too much. Sometimes, FS on this VM's can be automatically > re-mounted in ro-mode. > Network monitor saying, that speed ~40MB/sec. Disk monitor displays the > same. > > I try to start VM with FTP on other server (0) - problem still persist. > Mounting other Gluster node - problem still persist. > > Please, help to solve this problem. > > -- > С уважением, Закурин Алексей Евгеньевич. > Telegram: @Zakurin > Tel: +7 968 455 88 48 > _______________________________________________ > Gluster-users mailing list > Gluster-users@xxxxxxxxxxx > http://lists.gluster.org/mailman/listinfo/gluster-users _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://lists.gluster.org/mailman/listinfo/gluster-users
